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Nelson Thornes/AQA A2 Physics A Weblinks Chapter 1 – Forces and momentum URL www.vjc.moe.edu.sg/fasttrack/physics/Momentum.htm http://faraday.physics.utoronto.ca/PVB/Harrison/Flash/C lassMechanics/AirTrack/AirTrack.html www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/ClassMechanics/VertCircular/VertCircular.html Descriptive name Description FastTrack@VJC – Elastic Collision Upscale – DM Harrison – Classical Mechanics Animation Upscale – DM Harrison – Classical Mechanics Animation Use data to verify conservation of linear momentum. http://jersey.uoregon.edu/momentum/Momentum.html Global View – Mechanics – Momentum http://galileoandeinstein.physics.virginia.edu/more_stuff/ Applets/Collision/jarapplet.html Fowler's Physics Applets – Twodimensional Collisions Learn Physics Using Java (C K Ng) – Mechanics – Drop an object onto a moving trolley Vidshell www.ngsir.netfirms.com/englishhtm/DropABrick.htm http://cripe03.rug.ac.be/Vidshell/Vidshell.htm http://www.iihs.org/videos/ http://www.redlake.com/gallery/videos/VIT.aspx IIHS – Understanding Car Crashes: It's Basic Physics Redlake – Vehicle Impact Testing – Air Track Collisions (Collisions on an Air Track). Elastic and inelastic collisions on an air track, with different masses for the target cart. Vertical Circular Motion (A Mass Moving in a Vertical Circle). A mass is in circular motion in the vertical plane. The animation shows the weight and force exerted by the tension in the string. This applet concerns conservation of linear momentum and to some extent simulates the standard air track cart demonstration in physics. The applet has two modes, elastic, which is represented by a collision between a lightweight cannon projectile that sticks to a heavier cart and inelastic which is represented by the collision of two railroad carts on a frictionless track. Parameter tags control the masses and momentum of the objects. With this applet, you can fire one ball at a stationary ball and watch the collision simultaneously in the lab frame and centre of mass frame. There are simple controls to change the angle of the collision and ratio of masses. Drop an object onto a moving trolley. The "Start" button will become the "Drop" button after it is pressed. The ground on which the trolley moves is frictionless. Download the video analysis software and see the video clips database. Video and teacher’s guide. Go behind the scenes to explore the basic science behind car crashes. Watch the trailer. 10 second high speed video of an Audi in a crash test that shows the rapid deployment of the airbag and the www.physclips.unsw.edu.au Barrier crash test Physclips – Momentum effect of the crumple zone. Module 9 – Momentum and Collisions. Hyperlink to some of the related material while you wait: - Momentum, Newton’s laws and collisions - Collision examples and calculations - Collisions in two dimensions. Momentum: Download all animations in this module. Descriptive name Description Animations for Physics and Astronomy – Mechanics – Circular Motion Animations for Physics and Astronomy – Mechanics – Motion in a Vertical Circle Physics at PSU Simulations See ‘Car on a Level Track (new)’ and ‘Car on a Banked Frictionless Track (new)’. You can embed the video in a webpage or downloaded the media file. www.physclips.unsw.edu.au/site_map.htm Chapter 2 – Motion in a circle URL http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm http://rt210.sl.psu.edu/simulations/physlets/newtons_ca nnonSimulation_dsp.html www.physclips.unsw.edu.au www.physclips.unsw.edu.au/site_map.htm www.funderstanding.com/k12/coaster www.fun-motion.com/physics-games/armadillo-run http://jvsc.jst.go.jp/find/rikigaku/english/index.htm Chapter 3 – Simple harmonic motion Physclips – Circular Motion Funderstanding Roller Coaster! Fun-Motion – Armadillo Run JST Virtual Science Center – The Physics of Amusement Parks See ‘Coasting Through a Vertical Loop (with Reaction Forces)’, ‘Car Coasting Through a Vertical Loop’ and ‘Car Failing to Coast Through a Loop’. You can embed the video in a webpage or downloaded the media file. Set the projectile speed and fire the cannon. See if you can make the cannonball orbit the planet. See if you can make the orbit circular. (The "cheat" button picks the correct speed for a circular orbit.) Module 3 – Circular Motion. Hyperlink to Background material for Circular Motion. Circular Motion: Download all animations in this module. Design the coaster so that you can achieve maximum thrills and chills without crashing or flying off the track (unless that's how you like your coaster to work!). Armadillo Run is a build-and-simulate puzzle game – Download Armadillo Run Game Demo. These pages are about the dynamics of amusement park rides. See ‘Lets study forces – Turning’. URL http://demonstrations.wolfram.com/SimpleHarmonicMoti on/ http://rt210.sl.psu.edu/simulations/physlets/oscillations_ circlesSimulation.html www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/ClassMechanics/Circular2SHM/Circular2SHM.html www.upscale.utoronto.ca/PVB/Harrison/Flash/ClassMe chanics/SHM/TwoSHM.html www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/ClassMechanics/DampedSHM/DampedSHM.html http://faraday.physics.utoronto.ca/PVB/Harrison/Flash/T rigDiff/TrigDiff.html www.physclips.unsw.edu.au www.physclips.unsw.edu.au/site_map.htm www.phy.ntnu.edu.tw/ntnujava/index.php?topic=148 http://physicsanimations.com/Physics/English/mech.htm Descriptive name Description Wolfram Demonstrations Project – Simple Harmonic Motion Physics at PSU Simulations It helps to understand simple harmonic motion by linking the vertical position of the moving object to a point on a circle. (Mathematica Player free download needed to run the demonstration.) Harmonic Oscillations from Circular Motion, showing position, velocity and acceleration graphs. You can change the radius and frequency of oscillation. Simple Harmonic Motion 1 – Demonstrating that one component of uniform circular motion is simple harmonic motion. Simple Harmonic Motion 2 – Illustrating and comparing Simple Harmonic Motion for a spring-mass system and for a oscillating hollow cylinder. Damped Simple Harmonic Motion. The damping factor may be controlled with a slider. The maximum available damping factor of 100 corresponds to critical damping. The Derivation of the Sine Function – An animation illustrating that the derivative of a sine function is a cosine. Module 4 – Simple Harmonic Motion. Circular Motion: Download all animations in this module. Watch and find out the relation between uniform circular motion and simple harmonic motion. Harmonic oscillation. An oscillating pendulum leaves a trace in the form of a sinusoid. Upscale – DM Harrison – Classical Mechanics Animation Upscale – DM Harrison – Classical Mechanics Animation Upscale – DM Harrison – Classical Mechanics Animation Upscale – DM Harrison – Miscellaneous Physclips – Simple Harmonic Motion CoLoS – Simple Harmonic Motion Kagi Online – Physics Animations – Mechanics – Harmonic oscillation Chapter 4 – Gravitational fields URL www.physclips.unsw.edu.au http://phys23p.sl.psu.edu/phys_anim/mech/indexer_me ch.html Descriptive name Description Physicsclips – Gravity Animations for Physics and Astronomy – Module 11 – Gravity. Gravitation – Cavendish experiment to determine G. You can embed the video in a webpage or downloaded the media file. http://physicsanimations.com/Physics/English/mech.htm www.phy.ntnu.edu.tw/ntnujava/index.php?topic=398 http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/home.htm http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/NewtMtn/NewtMtn.html Mechanics – Gravitation Kagi Online – Physics Animations – Mechanics CoLoS – Projectile/Satellite Orbits Physics Flashlets – Newton’s Cannon on a Mountain http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/Slingshot.htm Jupiter Slingshot http://orbit.medphys.ucl.ac.uk/orbit.html Orbiter – Space Flight Simulator See: - Satellite motion. Geo-stationary orbit. Kepler's law. Low Earth Orbit satellites. "Iridium". - Motion of the body in the presence of the gravitational field. Projectile Orbits and Satellite orbits: Newton’s Cannon – Newton had observed that any projectile launched horizontally is, in a sense, an Earth satellite. Newton imagined a cannon firing horizontally from a mountaintop far above the atmosphere: he showed a fast enough cannonball would go into orbit. Find out for yourself how a gravitational boost from a moving planet can get you to the far reaches of the Solar System. ORBITER is a free flight simulator that goes beyond the confines of Earth's atmosphere. Launch the Space Shuttle from Kennedy Space Center to deploy a satellite, rendezvous with the International Space Station or take the futuristic Delta-glider for a tour through the solar system - the choice is yours. Chapter 5 – Electric fields URL www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/EM/FieldLines/FieldLines.html http://demonstrations.wolfram.com/ElectricDipolePotenti al www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/EM/Coulomb/Coulomb.html Descriptive name Description Upscale – DM Harrison – Electricity and Magnetism Wolfram Demonstrations Project – Electric Dipole Potential Upscale – DM Harrison – Electricity and Magnetism Field Lines (Representing the Electric Field of a Point Charge) – Illustrating representing an electric field with field lines. The electrostatic potential of two point charges. (Mathematica Player free download needed to run the demonstration.) Coulomb's Law – A simulation of an experiment to determine the dependence of the electrostatic force on distance. http://phys23p.sl.psu.edu/phys_anim/EM/indexer_EM.ht ml http://phet.colorado.edu/simulations/sims.php?sim=Elec tric_Field_Hockey Animations for Physics and Astronomy – Electric Field Lines PhET – Electric Field Hockey http://web.mit.edu/8.02t/www/802TEAL3D/visualizations /electrostatics/index.htm MIT Teal Project – Electrostatics Electric Field Lines of a Point Charge. Electric Field Lines of a Dipole: Changing Viewpoint. Electric Field Lines of a Dipole: Changing Charge Separation. Play hockey with electric charges. Place charges on the ice, then hit start to try to get the puck in the goal. View the electric field. Two point Charges – the position and charge of each particle can be modified in real time, and the field configuration will update itself accordingly. Charging a Van de Graff Generator (applet) – shows the charging of a Van de Graff Generator to a positive potential when there is a stationary positive charge sitting above it. Chapter 6 – Capacitors URL http://schools.matter.org.uk/Content/Capacitors/Default. htm Descriptive name Description Matter Project – Capacitors www.phy.ntnu.edu.tw/ntnujava/index.php?topic=31 CoLoS – RC Circuits http://lectureonline.cl.msu.edu/~mmp/kap23/RC/app.ht m LON-CAPA – The Applet Collection – Charging a Capacitor Provide a definition of capacitance and name its units. Explain why a capacitor has a maximum working voltage. Determine experimentally the energy stored in a capacitor. Explain and determine experimentally the time constant. Shows the transient behaviour that occurs when the capacitor is being charged and discharged. Change the capacitance and resistance in an RC circuit. After closing the switch, you can observe the time evolution of the charging of the capacitor. URL www.surendranath.org/AppletsJ2.html Descriptive name Description General Physics Java Applets – New Applets www.vjc.moe.edu.sg/fasttrack/physics/VelocitySelector. htm FastTrack@VJC – Velocity Selector Click Menu >Electricity >Moving Charge in Electric and Magnetic Fields Shows the motion of a positive charged particle subject to Lorentz force. Deflect a proton or electron in electrical and magnetic fields. Show the E and B lines. Chapter 7 – Magnetic fields http://phys23p.sl.psu.edu/phys_anim/EM/indexer_EM.ht ml http://phys23p.sl.psu.edu/phys_anim/EM/indexer_EM.ht ml http://www.physclips.unsw.edu.au/site_map.htm#consta nt Animations for Physics and Astronomy – Elec & Mag – Motion of a Charge in a Magnetic Field Animations for Physics and Astronomy – Elec & Mag – Magnetic Force Physclips – Electric Motors Charge in a Uniform B Field. You can embed the video in a webpage or downloaded the media file. Descriptive name Description Wolfram Demonstrations Project – AC Transformers In the simple design shown here, primary coils (blue) and secondary coils (red) are wound around a ferromagnetic core. An alternating current in the primary circuit creates a time-dependent magnetic field in the core, which, in turn, induces an alternating current in the secondary circuit, via Faraday's law of electromagnetic induction. (Mathematica Player free download needed to run the demonstration.) Interactive Java Tutorials Operation of an Electric Motor Using a Constant Voltage Supply and a Commutator. You can embed the video in a webpage or downloaded the media file. Electric Motors: Download all electric motors animations (or individually below each thumbnail). Chapter 8 – Electromagnetic induction URL http://demonstrations.wolfram.com/ACTransformers http://micro.magnet.fsu.edu/electromag/java/faraday/ind ex.html Molecular Expressions: Electricity and Magnetism – Faraday's Experiment http://micro.magnet.fsu.edu/electromag/java/generator/a c.html – AC Generator Action Faraday's Magnetic Field Induction Experiment. In 1831, Michael Faraday made his discovery of electromagnetic induction with an experiment using two coils of wire wound around opposite sides of a ring of soft iron. Click on the switch to close and open the circuit. The AC generator tutorial demonstrates how varying the frequency of an alternating current can affect both the voltage produced by the generator, as well as the speed in which the coil rotates. http://micro.magnet.fsu.edu/electromag/java/generator/d c.html – DC Generator Action http://micro.magnet.fsu.edu/electromag/java/transformer /index.html – How a Transformer Works www.surendranath.org/AppletsJ2.html General Physics Java Applets – New Applets www.mhhe.com/physsci/physical/giambattista/induction/ induction.html McGraw Hill – Induction, Electromagnetic Fields and Generators http://phet.colorado.edu/simulations/sims.php?sim=Gen erator PhET – Generator http://phet.colorado.edu/simulations/sims.php?sim=Fara days_Electromagnetic_Lab PhET – Faraday’s Electromagnetic Lab Similar to the AC generator tutorial, this tutorial also shows the effect on coil rotation speed and voltage by increasing and decreasing the frequency in a direct current generator. This tutorial explores how transformers are used to increase or decrease AC voltages and currents in circuits, and how the operation of transformers is based on the principal of mutual inductance. Click Menu >Electricity >Moving Conductor in a Magnetic Field Shows a conductor moving in a magnetic field with its ends sliding on conducting rails. The Induction applet is designed to allow the user to explore the phenomenon of induction. Select a type of magnetic field and experiment with the loop controls and position of the magnet to see the impact the voltage in order to develop an intuitive understanding of the relationship between magnetic and electric fields. Generate electricity with a bar magnet! Discover the physics behind the phenomena by exploring magnets and how you can use them to make a bulb light. Play with a bar magnet and coils to learn about Faraday's law. Move a bar magnet near one or two coils to make a light bulb glow. View the magnetic field lines. A meter shows the direction and magnitude of the current. View the magnetic field lines or use a meter to show the direction and magnitude of the current. You can also play with electromagnets, generators and transformers! Chapter 9 – Radioactivity URL www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/Nuclear/Decay/NuclearDecay.html Descriptive name Description Upscale – DM Harrison – Nuclear http://lectureonline.cl.msu.edu/~mmp/applist/decay/dec ay.htm LON-CAPA – The Applet Collection – Nuclear Decays. The decay of 500 atoms of the fictional element Balonium. Uses a proper Monte Carlo engine to simulate real decays. A large number of red atomic nuclei, each obeying the same decay law. Select the half life time of the nuclei Radioactive Decay www.iop.org/activity/education/Projects/Other Resources/Online_Resources/Teaching_radioactivity/p age_31313.html IOP – Schools and Colleges – Teaching Radioactivity www.visualsimulations.co.uk/software.php?program=at omscope2 Visual Simulations – AtomScope http://home.clara.net/darvill/nucrad/index.htm Andy Darvill's Science Site Radioacivity Physics 2000 – Science Trek – Isotopes & Radioactivity www.colorado.edu/physics/2000/index.pl with the slider, press the start button, and watch them decay away as a function of time. With four, high quality, 3D animations from Teachers TV: www.teachers.tv/video/27400 - Radiation Ionises the Air - The Cloud Chamber - The Spark Counter - The Properties of Alpha, Beta and Gamma They are designed to help visualise what is happening at a microscopic and atomic level. First select ‘Nuclear and Sub-Atomic’ from the AtomScope menu and then select the ‘Radioactive Decay’ option. Students can record the number of decayed atoms in a table at 10 second time intervals. When they have finished they can plot the results on a graph and calculate the half-life. Designed for revision of the GCSE Radioactivity topic. Select ‘Science Trek – Isotopes & Radioactivity’ and follow the tutorial. Chapter 10 – Nuclear energy URL http://phet.colorado.edu/simulations/sims.php?sim=Nucl ear_Physics Descriptive name Description PhET – Nuclear Physics http://lectureonline.cl.msu.edu/~mmp/applist/chain/chai n.htm or www.lon-capa.org/~mmp/applist/chain/chain.htm LON-CAPA – The Applet Collection – Nuclear Chain Reaction ASU – Pressurised Water Reactor Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Watch alpha particles escape from a Polonium nucleus, causing radioactive alpha decay. Control energy production in a nuclear reactor! This applet simulates what happens in a nuclear chain reaction. Each green dot you see here represents a nucleus that spontaneously fissions, if a neutron hits it. www.eas.asu.edu/~holbert/eee460/pwr.html An explanation of the pressurised water reactor system. www.atomicarchive.com/Movies/index_movies.shtml Atomic Archive – Videos http://fusedweb.llnl.gov/CPEP CPEP – FusEdWeb – Fusion Energy Education JET – Energy of the Future - Fusion 2100 Historic videos illustrating the tremendous effects of a nuclear explosion, including "Now I become death..." J. Robert Oppenheimer's reflections of the first atomic bomb test. Fusion – Physics of a Fundamental Energy Source. Click anywhere on this picture to go to the relevant fusion topic, or try the Guided Tour. How will a fusion power plant work? At what stage is fusion research today? The film gives an entertaining and informative nine-minutes account in which a school class in 2100 reenacts the development of fusion energy. Descriptive name Description www2.biglobe.ne.jp/~norimari/science/JavaApp/Mole/eMole.html Physics 2000 – Evaporative Cooling Nori’s Java - Billiards of Molecules www.visualsimulations.co.uk/software.php?program=at omscope2 Visual Simulations – AtomScope http://phys23p.sl.psu.edu/phys_anim/thermo/indexer_th ermo.html Animations for Physics and Astronomy – Gases See how evaporative cooling works, both in your coffee cup and in Bose-Einstein Condensation. Billiards of Molecules (What's the difference of gas, liquid and solid). Drag the marked molecule to the cluster. The molecule collides the cluster and scater the molecules of the cluster. And the state chenges to "Liquid' and "Solid" as the speed gets slower. First select ‘Physical Processes’ from the AtomScope menu and then select the ‘Changes of State’ option. The simulation begins with temperature set to minimum. A good demonstration is to use the slow heating control to show the gradual increase in thermal motion, along with the distinct changes that occur on melting and evaporating. It takes approximately two minutes for the temperature to reach maximum. Selecting the Beaker option makes the liquid phase clearer to many students. See ‘Heat Capacity and Sample Size’ and ‘Joules Experiment to Determine the Mechanical Equivalence of Heat’. You can embed the video in a webpage or downloaded the media file. www.jet.efda.org/pages/multimedia/movies/classroom2 100/index.html Chapter 11 – Thermal Physics URL www.colorado.edu/physics/2000/applets/bec.html Chapter 12 – Gases URL http://phet.colorado.edu/simulations/sims.php?sim=Gas _Properties Descriptive name Description PhET – Gas Properties http://phet.colorado.edu/simulations/sims.php?sim=Ball oons_and_Buoyancy PhET – Balloons and Bouyancy http://jersey.uoregon.edu/Balloon/index.html Global View – Thermodynamics – Balloon http://galileoandeinstein.physics.virginia.edu/more_stuff/ Applets/brownian/brownian.html Fowler's Physics Applets - Einstein’s Explanation of Brownian Motion Frederick H. Willeboordse's Simulations Gallery – Classical Physics – Brownian Motion Physics Lab – Gas Laws Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. Experiment with a helium balloon, a hot air balloon, or a rigid sphere filled with different gases. Discover what makes some balloons float and others sink. This applet shows both the ideal gas law as well as the Maxwellian Velocity Distribution by using particles inside a balloon whose temperature can be adjusted. Digital readouts give the pressure and mean particle speed and the velocity distribution for a given temperature is graphically shown. A parameter tag also changes the state of the balloon to that of a planetary atmosphere where the concept of escape velocity and the tail of the velocity distribution can be shown. This applet demonstrates Brownian motion. the big particle can be considered as a dust particle while the smaller particles can be considered as molecules of a gas. Brownian Motion! Need I say more? http://chaos.nus.edu.sg/simulations/Classical%20Physic s/BrownianMotion/brownian.html www.physicslab.co.uk/gas.htm www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=422 Explore Science – Boyle’s Law and Charles’ Law This program investigates the behavior of an ideal gas. The relationships between p,V and T, which determine the state of the gas, can be investigated by proper control of the variables. Investigate the properties of an ideal gas by performing experiments in which the temperature is held constant (Boyle's Law), and others in which the pressure remains fixed (Charles' Law). The pressure is controlled through the placement of masses on the lid of the container, and www.7stones.com/Homepage/Publisher/Thermo1.html www.mhhe.com/physsci/physical/giambattista/thermo/th ermodynamics.html http://mutuslab.cs.uwindsor.ca/schurko/animations/ideal atmosphere/idealatmosphere.html http://aspire.cosmicray.org/javalabs/java12/gaslaws/index.htm?ASPIRE_Se ssion=6b7adc14e615463b9238612947848ba0 7stones – Thermodynamics Pressure x Volume proportional to Temperature McGraw Hill – The Law of Thermodynamics and Heat Engines temperature is controlled with an adjustable heat source. In this very finite thermodynamics simulation, pressure P, volume V, and temperature T are compared. The Thermodynamics applet is designed to study the relationships between volume, pressure, and temperature in a gas-filled cylinder and piston system. Through your selection of different conditions, you can study four thermodynamic processes. Windsor Solid State – Every time a molecule in the atmosphere hits the Ideal Atmosphere ground, it has an opportunity to pick up energy from the molecules in the ground, or lose energy to the molecules in the ground. ASPIRE – Gas See Student Labs: Particles in Motion Activity 1 - Gas Particles in Motion: Changing Volume Activity 2 - Gas Particles in Motion: Changing Activity 3 - Gas Particles in Motion: Changing Volume and Temperature Option A – Astrophysics URL www.int.pan.wroc.pl/gm/javaphysmath/java/clens/index. html http://demonstrations.wolfram.com/RayTracingWithLens es http://demonstrations.wolfram.com/CassegrainTelescop e Descriptive name Description INTiBS PAN - Image Formation by a Converging Lens Wolfram Demonstrations Project – Ray Tracing With Lenses You can move the object around by either clicking and draging or just clicking in the location of your choice. Wolfram Demonstrations Project – Cassegrain Telescope Using ray tracing, this demonstrates how a perceived image depends on the various characteristics of a lens. Vary the controls to learn how to construct the image. (Mathematica Player free download needed to run the demonstration.) This Demonstration shows a Cassegrain reflecting telescope. The primary parabolic concave mirror focuses incoming light toward a concave secondary mirror suspended on the axis of the telescope's cylinder. The reflected light from the secondary mirror is directed through an aperture in the centre of the primary mirror http://demonstrations.wolfram.com/RadiusAndTemperat ureOfMainSequenceStars Wolfram Demonstrations Project – Radius and Temperature of Main Sequence Stars http://demonstrations.wolfram.com/StellarLuminosity Wolfram Demonstrations Project – Stellar Luminosity Wolfram Demonstrations Project – Doppler Effect http://demonstrations.wolfram.com/DopplerEffect www.freezeray.com/flashFiles/DopplerEffect.htm Freezeray (Great Barr School) – The Doppler Effect www.seed.slb.com/en/scictr/lab/doppler/train.htm www.seed.slb.com/en/scictr/lab/doppler/doppler_exp.ht m www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/ClassMechanics/DopplerWaveFronts/DopplerWaveFr onts.html www.phy.ntnu.edu.tw/ntnujava/index.php?topic=21 SEED – The Doppler Train http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/doppler.htm Upscale – DM Harrison – Sound Waves CoLoS – Moving Point source: Doppler effect and shock wave Physics Flashlets – The Doppler Effect into an eyepiece. The telescope has captured an image of the comet Hale–Bopp. (Mathematica Player free download needed to run the demonstration.) This Demonstration presents this simple case by imagining that the various spectral classes of stars, OBAFGKM, are laid out on a shiny table next to each other for comparison. If you change the temperature of a star, its color and radius also change. The hottest stars, the O and B stars, are always blue. At the other end of the spectral class range, the color changes become more evident. (Mathematica Player free download needed to run the demonstration.) The luminosity, the amount of light emitted by a star, depends on the star's size and temperature. (Mathematica Player free download needed to run the demonstration.) The Doppler effect is shown as a shift in the visible light spectrum. Due to the expansion of the universe, distant galaxies move away from us at a speed proportional to their distance from us, which is why the Doppler red shift can be used to measure those distances. (Mathematica Player free download needed to run the demonstration.) The Doppler effect is demonstrated by the showing the propagation of waves from a moving source relative to a stationary observer. The speed of the moving source may be altered and the waves can be frozen at any time. The observed wave is also displayed as a trace. A musician on a train plays a note while someone stands to the side listening and trying to determine what note was being played. Doppler Effect (for a moving source) – Illustrating the classical Doppler Effect for sound waves. Doppler effect and shock wave. With link to ‘Astronomy picture of the day’ showing sonic boom? This flash animation shows a moving source emitting circular waves. Drag the Microphone! www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=588 Explore Learning – Ray Tracing (Lenses) http://ephysics.physics.ucla.edu/physlets/optics.html UCLA’s ePhysics – Physlet – Optics Work Bench UCLA’s ePhysics – Physlet – Blackbody Radiation McGraw-Hill – Stellar Evolution and the HR Diagram http://ephysics.physics.ucla.edu/physlets/eblackbody.ht m www.mhhe.com/physsci/astronomy/applets/Hr/frame.ht ml www.mhhe.com/physsci/astronomy/applets/Blackbody/f rame.html McGraw-Hill – Blackbody radiation and stellar luminosity www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=558 Explore Learning – Star Spectra www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=429 Explore Learning – H-R Diagram www.surendranath.org/AppletsJ2.html General Physics Java Applets – New Applets www.shatters.net/celestia Chris Laurel – Celestia Experiment with a dynamic lens. Manipulate the position of an object and measure the distance and size of the image cast by a lens of variable strength. Observe the focusing of various light rays emanating from the object. Select lens and object. Move the position of the object and see how the images forms. Slide the bar appearing at the bottom of the animation in order to set the temperature. Note that a star will move from left to right - from hot to cool - as it ages. When astronomers actually measure stars in the sky and plot them on the HR diagram, they find about 90% on the main sequence, about 10% in the giant area on the right, and very few in the area between. By playing with the interactive, can you tell why this is so? If you go to the blackbody applet and change the temperature slider you will see how the highest point, or peak, of the curve shifts left or right to different wavelengths. Analyze the spectra of a variety of stars. Determine the elements that are represented in each spectrum, and use this information to infer the temperature and classification of the star. Look for unusual features such as red-shifted stars, nebulas, and stars with large planets. A collection of stars visible from Earth can be arranged based on many observables including color, luminosity, temperature, name and size. This can be done using one or two-dimensional plots, and a plot of luminosity vs. temperature can be created in an effort to learn about the Hertzsprung-Russell diagram. Click Menu >General >Black Body Radiation The overall appearance of the hot body, that is, the colour of the body as it appears to the eye is shown in the colour & temperature choice. The free space simulation that lets you explore our universe in three dimensions. Celestia comes with a www.stellarium.org Stellarium http://public.gettysburg.edu/~marschal/clea/CLEAhome. html Project CLEA www.thirteen.org/hawking/html/home.html AMGEN – Stephen Hawking’s Universe ScienceProf – Red Shift www.wwnorton.com/college/geo/egeo/flash/1_2.swf http://coolcosmos.ipac.caltech.edu http://btc.montana.edu/ceres/html/Universe/uni1.html ipac.caltech – Cool Cosmos CERES – The Expanding Universe http://zebu.uoregon.edu/2002/ph123/hub.html Global View – Hubble Expansion Law www.astro.washington.edu/labs/clearinghouse/labs/Hub bleLawShort/lab.html University of Washington – Hubble Law Lab, the Short Version Pearson Addison Wesley Astronomy – The Essential Cosmic Lecture Launcher v2.0 www.hawkeyecollege.edu/faculty/imukhopadhyay/AST RONOMY/ANIMATIONS_AND_DEMONSTRATIONS/C OSMIC_PERSPEC_MEDIA_PLUS_E_BOOK/VOL_2/C ONTENT/SystemFiles/AssetBrowser/index.html large catalog of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. Contemporary Laboratory Experiences in Astronomy develops laboratory exercises that illustrate modern astronomical techniques using digital data and colour images. They are suitable for high school and college classes at all levels, but come with defaults set for use in introductory astronomy classes "Where do we come from? How did the universe begin? Why is the universe the way it is? How will it end? This animation demonstrates the Doppler effect as applied to light by simulating the effect of a star's velocity upon the starlight as viewed from Earth. Use the horizontal scrollbar to change the star's velocity. See the ‘Ask an Astronomer Videos’ with titles such as ‘What is a redshift?’ Students create a balloon model of the expanding universe and review Hubble Space Telescope measurements that are refining estimates for the age of the universe. This lesson uses observation, interactive media, and scientific models. This applet uses spectra and images of 30 nearby galaxies, duplicating the same observations that Hubble originally made, from which students can plot galaxy angular size against redshift to determine that the Universe is expanding. The student will determine a value for Hubble's constant, based on their observations of the images and spectra of 12 spiral galaxies. An extensive library of more than 1,000 high-resolution images, purpose-built animations, interactive tools (applets), and interactive photos and figures based on key images from the book ‘The Essential Cosmic Perspective’. Option B – Medical Physics URL www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=588 Descriptive name Description Explore Learning – Ray Tracing (Lenses) http://ephysics.physics.ucla.edu/physlets/optics.html UCLA’s ePhysics – Physlet – Optics Work Bench INTiBS PAN - Image Formation by a Converging Lens Wolfram Demonstrations Project – Ray Tracing With Lenses Experiment with a dynamic lens. Manipulate the position of an object and measure the distance and size of the image cast by a lens of variable strength. Observe the focusing of various light rays emanating from the object. Select lens and object. Move the position of the object and see how the images forms. www.int.pan.wroc.pl/gm/javaphysmath/java/clens/index. html http://demonstrations.wolfram.com/RayTracingWithLens es http://demonstrations.wolfram.com/OpticalModelOfThe HumanEye www.phys.unsw.edu.au/jw/hearing.html http://qbx6.ltu.edu/s_schneider/physlets/main/nearsight ed.shtml and http://qbx6.ltu.edu/s_schneider/physlets/main/farsighted .shtml http://embryo.soad.umich.edu http://embryo.soad.umich.edu/resources/morph.mov Wolfram Demonstrations Project – Optical Model Of The Human Eye UNSW – Music Acoustics – Equal loudness contours and audiometry Physlets – Nearsighted Vision model and Farsighted Vision model NICHD – The MultiDimensional Human Embryo You can move the object around by either clicking and draging or just clicking in the location of your choice. Using ray tracing, this demonstrates how a perceived image depends on the various characteristics of a lens. Vary the controls to learn how to construct the image. (Mathematica Player free download needed to run the demonstration.) This eye model uses a spherical retinal surface as well as a thin lens defocusing element. Move the red locator button to position the light source and the blue one for rotation. (Mathematica Player free download needed to run the demonstration.) Test your own hearing by measuring equal loudness contours – the frequency response of your own ears, by playing sound files with a range of frequencies and sound levels. See also ‘What is a decibel?’ Far-sighted eye: The lens at the front of the eye is ‘too weak’. A converging lens corrects for this type of vision. Near-sighted eye: The lens at the front of the eye is ‘too strong’. A diverging lens correct for this type of vision. A three-dimensional image reference of the Human Embryo based on magnetic resonance imaging. See ‘Human Embryo Atlas (Image Slice Selector)’, ‘Carnegie Stage 23’ and the movie: ‘Psuedo Timelapse (650 KB QuickTime file)’. www.teachingmedicalphysics.org.uk IOP – Medical Physics Teaching Materials for Schools www.insidestory.iop.org IOP – Inside Story: Physics in Medicine It contains lessons as PowerPoint presentations and other material aimed at helping teachers to teach science with examples from medical physics. Particularly useful are the ‘Teachers' notes with worksheets’, ‘Text book’ and links to such sites as the ‘IOP/MRC – Inside Story: Physics in medicine’. - Investigate brain activity using Magnetic Resonance Imaging. - Inspect a large intestine by conducting a colonoscopy. - Perform a series of PET scans to diagnose disease. - Use radiotherapy to treat a cancerous tumour. Option C – Applied Physics URL http://phet.colorado.edu/simulations/sims.php?sim=Torq ue Descriptive name Description PhET - Torque www.upscale.utoronto.ca/PVB/Harrison/Flash/ClassMe chanics/CatOnItsFeet/CatOnItsFeet.html Upscale – DM Harrison – How Does a Cat Land on its Feet? Kagi Online – Physics Animations – Mechanics - Investigate how torque causes an object to rotate. Discover the relationships between angular acceleration, moment of inertia, angular momentum and torque. The saying is that cats always land on their feet. This animation explains how they do this. http://physicsanimations.com/Physics/English/mech.htm Unbalanced gyroscope precession http://demonstrations.wolfram.com/StraightCylinderEngi ne Wolfram Demonstrations Project – Straight Cylinder Engine http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm Animations for Physics and Astronomy – Thermo – Thermodynamic Rotating systems exhibit some behavior that appears strange when we apply our intuition, developed for linear motion. The motion of the gyroscope shown here is an example. This demonstration shows a model of a typical straight cylinder engine, also known as a reciprocating engine. Each cylinder follows a 4-stroke cycle (also called an Otto cycle). The order of sparking is designed to minimize vibration and achieve smooth running. (Mathematica Player free download needed to run the demonstration.) See The Otto cycle in a Four Stroke Engine. You can embed the video in a webpage or downloaded the media file. www.shermanlab.com/science/physics/thermo/engines/ DieselG.php www.shermanlab.com/science/physics/thermo/engines/ OttoG.php Cycles Sherman Visual Lab – Thermodynamics Diesel Engine and Diesel Cycle and Otto Engine and Otto Cycle. View the four strokes of engines and the correspoding curves on the PV diagram. Four Stroke Engine Demonstration Page http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/carnot.htm Raj Kaimal – Silverlight Thomson Brooks/Cole Physics Flashlets – Carnot Cycle www.keveney.com/Engines.html www.keveney.com/otto.html Matt Keveney – Animated Engines Carnot engine in action! You can slow it down to see what’s going on, and choose other values of pressure and volume to vary the cycle. Visualise how an engine's unique linkage works. See ‘Four Stroke (Otto)’ for Four Stroke Engine. URL http://phet.colorado.edu/new/simulations/sims.php?sim =Photoelectric_Effect Descriptive name Description PhET – Photoelectric Effect http://www.stmary.ws/physics/home/animations3/moder nPhysics/photoelectricEffect.html St. Mary’s Physics Online – The Photoelectric Effect Wolfram Demonstrations Project – WaveParticle Duality in the Double-Slit Experiment See how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics such as obtaining a graph of electron energy v light frequency with different metals. This animation allows the user to select the radiation frequency and brightness, and the target metal. The electron current is then measured. Small numbers of photons (or individual photons), after passing through the slits, produce scintillations at apparently random points on the screen. But as the number of photons per pulse is increased, a pattern of light and dark bands gradually emerges, with spacings determined by the wavelength and slit separation, which you can control with sliders. (Mathematica Player free download needed to run the demonstration.) You Tube 5 minute video on the double slit experiment with waves and particles, and introducing quantum weirdness. Is an electron a particle or a wave? Explore various http://weblogs.asp.net/rajbk/pages/silverlight-fourstroke-engine-demo-page.aspx www.uwsp.edu/physastr/kmenning/flash/AF_2212.swf Four Stroke Otto Engine Cycle Option D – Turning Points in Physics http://demonstrations.wolfram.com/WaveParticleDualityI nTheDoubleSlitExperiment http://www.youtube.com/watch?v=DfPeprQ7oGc&mode =related&search= http://chaos.nus.edu.sg/simulations/ You Tube – Dr Quantum - Double Slit Experiment Frederick H. http://www.upscale.utoronto.ca/PVB/Harrison/DoubleSlit /Flash/Histogram.html http://www.colorado.edu/physics/2000/index.pl Willeboordse's Simulations Gallery – Interference – Particles or Waves? Upscale – DM Harrison – Double Slit Experiment for Electrons Physics 2000 – The Atomic Lab and Science Trek. http://demonstrations.wolfram.com/ThePhotoelectricEffe ct Wolfram Demonstrations Project – The Photoelectric Effect www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=491 Explore Learning – Photoelectric Effect http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/mmexpt6.htm Physics Flashlets – Michelson-Morley Experiment http://demonstrations.wolfram.com/RussellsThoughtExp erimentInSpecialRelativity Wolfram Demonstrations Project – Russells Thought Experiment In Special Relativity interference related phenomena with this applet. The famous ‘Feynman Double Slit Experiment’ for electrons. Click on 6 electrons per second to observe a faster build-up of electrons on the screen. In The Atomic Lab see how some surprising 20th Century physics experiments show us that not everything is as it seems, for example wave-particle duality. In Science Trek learn basic principles of waves, quantum mechanics, polarization, and the periodic table. Once the threshold wavelength is attained, the current of electrons increases linearly with the radiation intensity. This can be monitored by an ammeter in the circuit shown. The light source covers the entire visible range 400–700 nm. In the ultraviolet region, the light ray appears as black. (Mathematica Player free download needed to run the demonstration.) Shoot a beam of light at a metal plate in a virtual lab and observe the effect on surface electrons. The type of metal as well as the frequency and intensity of the light can be adjusted. An electric field can be created to resist the electrons and measure their initial energies. This applet simulates the set-up used in the MichelsonMorley experiment, including the non-existent aether wind they were trying to detect! The basic idea is to detect the time difference between light going "upstream then downstream" and light going "across shore and back." Suppose an observer is on a platform at rest, a second observer is on a second platform that moves with a velocity that is a fraction of the speed of light relative to the first, a third observer moves with respect to the second with the same velocity, and so on. What is the relative velocity of each platform to the observer at rest? (Mathematica Player free download needed to run the demonstration.) http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm www.upscale.utoronto.ca/PVB/Harrison/SpecRel/Flash/ MichelsonMorley/MichelsonMorley.html Animations for Physics and Astronomy – Mod Phys – Relativity and Time Dilation Frederick H. Willeboordse's Simulations Gallery – Modern Physics – Mass is Relative Upscale – DM Harrison – Relativity http://faraday.physics.utoronto.ca/PVB/Harrison/SpecR el/Flash/LengthContract.html Upscale – DM Harrison – Relativity http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html HyperPhysics Relativity http://gregegan.customer.netspace.net.au/APPLETS/20 /20.html Greg Egan – Subluminal www.adamauton.com/warp Warp – A Special Relativity Simulator www.walter-fendt.de/ph14e/timedilation.htm Walter Fendt – Time Dilation http://chaos.nus.edu.sg/simulations/Modern%20Physics /Mass/mass.html A variety of videos comparing Galilean and Special Relativities. You can embed the video in a webpage or downloaded the media file. See how the mass of an object depends on its speed. Michelson-Morley Experiment (Two swimmers) – A simple analogy involving two swimmers that sets up the Michelson-Morley Experiment. Deriving Length Contraction. A tutorial that shows how relativistic length contraction must follow from the existence of time dilation. HyperPhysics is an exploration environment for concepts in physics which employs concept maps and other linking strategies to facilitate smooth navigation. Subluminal shows how a wave composed of a multitude of frequencies moving at different velocities — all less than or equal to c, the speed of light in a vacuum — can appear to have features moving faster than c. Warp is a program used to illustrate the appearance of everyday objects travelling at really, really high speeds. At such speeds, Einstein's theory of special relativity predicts that unusual things start to happen. Warp models these strange effects - it is a special relativity simulator. A spaceship is flying a distance of 5 light hours, for example from Earth to the planet Pluto. The speed can be regulated with the upper buttons. The applet demonstrates that the clock in the spaceship goes more slowly than the two clocks of the system in which Earth and Pluto are motionless. Nelson Thornes/AQA A2 Physics B Weblinks Chapter 1 – Attracted to the Earth URL http://turing.kingsu.ca/~map/java/applets/elevator/applet .html with http://turing.kingsu.ca/~map/java/applets/elevator/applet help/showme.html www.seed.slb.com/en/scictr/lab/visco_exp/index.htm or www.seed.slb.com/en/scictr/lab/visco_exp/viscosity.htm Descriptive name Description MAP - Elevator www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/FluidDynamics/ViscousMotion/ViscousMotion.html Upscale – DM Harrison – Fluid Mechanics – Viscous Motion Physclips – Circular Motion This applet can be used to illustrate the physics of elevators and especially the application of Free Body Analysis to the forces acting on the occupant of an elevator in motion. The Viscosity Explorer lets you see how viscosity varies from liquid to liquid and how temperature affects viscosity. You can compare two differet liquids with each other test the same liquid at two different temperatures. Dropping a ball in a viscous liquid. The densities, liquid viscosity, and size of the ball are controllable. www.physclips.unsw.edu.au www.physclips.unsw.edu.au/site_map.htm www.physclips.unsw.edu.au http://phys23p.sl.psu.edu/phys_anim/mech/indexer_me ch.html http://physicsanimations.com/Physics/English/top10.htm http://physicsanimations.com/Physics/English/mech.htm SEED – Viscosity Explorer Physicsclips – Gravity Animations for Physics and Astronomy – Mechanics – Gravitation Kagi Online – Physics Animations – Top 10 - Cavendish's torsion-bar experiment Kagi Online – Physics Animations – Mechanics Module 3 – Circular Motion. Hyperlink to Background material for Circular Motion. Circular Motion: Download all animations in this module. Module 11 – Gravity. Gravitation – Cavendish experiment to determine G. You can embed the video in a webpage or downloaded the media file. The apparatus employed was a torsion balance, essentially a stretched wire supporting spherical weights. Attraction between pairs of weights caused the wire to twist slightly, which thus allowed the first calculation of the value of the gravitational constant G. See: - Satellite motion. Geo-stationary orbit. Kepler's law. Low Earth Orbit satellites. "Iridium". - Motion of the body in the presence of the gravitational field. CoLoS – Projectile/Satellite Orbits Physics Flashlets – Newton’s Cannon on a Mountain Physics at PSU Simulations Projectile Orbits and Satellite orbits: Newton’s Cannon – Newton had observed that any projectile launched horizontally is, in a sense, an Earth satellite. Newton imagined a cannon firing horizontally from a mountaintop far above the atmosphere: he showed a fast enough cannonball would go into orbit. Set the projectile speed and fire the cannon. See if you can make the cannonball orbit the planet. See if you can make the orbit circular. (The "cheat" button picks the correct speed for a circular orbit.) URL www.fourmilab.ch/gravitation/orbits Descriptive name Description Fourmilab - Orbits in Strongly Curved Spacetime http://phys23p.sl.psu.edu/phys_anim/mech/indexer_me ch.html Animations for Physics and Astronomy – Mechanics – Gravitation Kagi Online – Physics Animations – Top 10 Experiments Upscale – DM Harrison – Classical Mechanics Animation Global View – Mechanics – Momentum Shows the orbit of a low-mass test particle around a non-rotating black hole. The Effective Potential plot shows the position of the test mass on the gravitational energy curve as it orbits in and out. Gravitation – Cavendish experiment to determine G. You can embed the video in a webpage or downloaded the media file. www.phy.ntnu.edu.tw/ntnujava/index.php?topic=398 http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/NewtMtn/NewtMtn.html http://rt210.sl.psu.edu/simulations/physlets/newtons_ca nnonSimulation_dsp.html Chapter 2 – Leaving the Earth http://physicsanimations.com/Physics/English/top10.htm http://faraday.physics.utoronto.ca/PVB/Harrison/Flash/C lassMechanics/AirTrack/AirTrack.html http://jersey.uoregon.edu/momentum/Momentum.html http://galileoandeinstein.physics.virginia.edu/more_stuff/ Fowler's Physics Cavendish's torsion-bar experiment. Attraction between pairs of weights cause the wire to twist, which allows the calculation of the gravitational constant G. Air Track Collisions (Collisions on an Air Track). Elastic and inelastic collisions on an air track, with different masses for the target cart. This applet concerns conservation of linear momentum and to some extent simulates the standard air track cart demonstration in physics. The applet has two modes, elastic, which is represented by a collision between a lightweight cannon projectile that sticks to a heavier cart and inelastic which is represented by the collision of two railroad carts on a frictionless track. Parameter tags control the masses and momentum of the objects. With this applet, you can fire one ball at a stationary ball Applets/Collision/jarapplet.html www.et.byu.edu/~wheeler/benchtop/sim.php www.mhhe.com/physsci/physical/giambattista/thermo/th ermodynamics.html Applets – Twodimensional Collisions Dean’s Benchtop – Water Rocket McGraw Hill – The Law of Thermodynamics and Heat Engines and watch the collision simultaneously in the lab frame and centre of mass frame. There are simple controls to change the angle of the collision and ratio of masses. Water rocket simulator: input launcher and rocket parameters. Use arrow buttons on the scrollbars to make fine adjustments. The Thermodynamics applet is designed to study the relationships between volume, pressure, and temperature in a gas-filled cylinder and piston system. Through your selection of different conditions, you can study four thermodynamic processes. Chapter 3 – What goes around comes around URL http://demonstrations.wolfram.com/SimpleHarmonicMoti on/ http://rt210.sl.psu.edu/simulations/physlets/oscillations_ circlesSimulation.html www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/ClassMechanics/Circular2SHM/Circular2SHM.html www.upscale.utoronto.ca/PVB/Harrison/Flash/ClassMe chanics/SHM/TwoSHM.html www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/ClassMechanics/DampedSHM/DampedSHM.html www.physclips.unsw.edu.au www.physclips.unsw.edu.au/site_map.htm www.phy.ntnu.edu.tw/ntnujava/index.php?topic=148 http://physicsanimations.com/Physics/English/mech.htm Descriptive name Description Wolfram Demonstrations Project – Simple Harmonic Motion Physics at PSU Simulations It helps to understand simple harmonic motion by linking the vertical position of the moving object to a point on a circle. (Mathematica Player free download needed to run the demonstration.) Harmonic Oscillations from Circular Motion, showing position, velocity and acceleration graphs. You can change the radius and frequency of oscillation. Simple Harmonic Motion 1 – Demonstrating that one component of uniform circular motion is simple harmonic motion. Simple Harmonic Motion 2 – Illustrating and comparing Simple Harmonic Motion for a spring-mass system and for a oscillating hollow cylinder. Damped Simple Harmonic Motion. The damping factor may be controlled with a slider. The maximum available damping factor of 100 corresponds to critical damping. Module 4 – Simple Harmonic Motion. Circular Motion: Download all animations in this module. Watch and find out the relation between uniform circular motion and simple harmonic motion. Harmonic oscillation. An oscillating pendulum leaves a trace in the form of a sinusoid. Upscale – DM Harrison – Classical Mechanics Animation Upscale – DM Harrison – Classical Mechanics Animation Upscale – DM Harrison – Classical Mechanics Animation Physclips – Simple Harmonic Motion CoLoS – Simple Harmonic Motion Kagi Online – Physics Animations – Mechanics – http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm www.funderstanding.com/k12/coaster http://jvsc.jst.go.jp/find/rikigaku/english/index.htm www.walter-fendt.de/ph14e/resonance.htm http://phet.colorado.edu/simulations/sims.php?sim=Torq ue Harmonic oscillation Animations for Physics and Astronomy – Mechanics – Motion in a Vertical Circle Funderstanding Roller Coaster! JST Virtual Science Center – The Physics of Amusement Parks Walter Fendt – Forced Oscillations (Resonance) PhET - Torque See ‘Coasting Through a Vertical Loop (with Reaction Forces)’, ‘Car Coasting Through a Vertical Loop’ and ‘Car Failing to Coast Through a Loop’. You can embed the video in a webpage or downloaded the media file. Design the coaster so that you can achieve maximum thrills and chills without crashing or flying off the track (unless that's how you like your coaster to work!). These pages are about the dynamics of amusement park rides. See ‘Lets study forces – Turning’. If you choose the option ‘Slow motion’, the movement will be five times slower. The spring constant, the mass, the constant of attenuation and the angular frequency of the exciting oscillation can be changed. Investigate how torque causes an object to rotate. Discover the relationships between angular acceleration, moment of inertia, angular momentum and torque. Chapter 4 – Imaging the invisible beneath the earth URL http://phys23p.sl.psu.edu/phys_anim/mech/indexer_me ch.html http://demonstrations.wolfram.com/InverseSquareLaws/ www.falstad.com/vector3dm Descriptive name Description Animations for Physics and Astronomy – Mechanics – Gravitation Wolfram Demonstrations Project – Inverse Square Laws Gravitation – Cavendish experiment to determine G. You can embed the video in a webpage or downloaded the media file. Paul Falstad – 3-D Magnetostatic Fields Applet Gravity, electrostatic force, and luminosity are inversely proportional to the square of the distance. This source gives an idea of why: an area projected from the center of a sphere grows proportionately to the square of the distance. (Mathematica Player free download needed to run the demonstration.) This java applet is a magnetostatics demonstration which displays the magnetic field in a number of situations. You can select from a number of fields and see how particles move in the field if it is treated as either a velocity field http://micro.magnet.fsu.edu/electromag/java/faraday/ind ex.html http://phet.colorado.edu/simulations/sims.php?sim=Fara days_Electromagnetic_Lab Molecular Expressions: Electricity and Magnetism – Faraday's Experiment PhET – Faraday’s Electromagnetic Lab www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=371 Explore Learning – Earthquake Determination of Epicenter www.seed.slb.com/en/scictr/watch/living_planet/quake_ map/index.htm SEED - Earthquake Epicenters (where the particles move along the field lines) or an actual force field (where the particles move as if they were little magnets). Faraday's Magnetic Field Induction Experiment. In 1831, Michael Faraday made his discovery of electromagnetic induction with an experiment using two coils of wire wound around opposite sides of a ring of soft iron. Click on the switch to close and open the circuit. Play with a bar magnet and coils to learn about Faraday's law. Move a bar magnet near one or two coils to make a light bulb glow. View the magnetic field lines. A meter shows the direction and magnitude of the current. View the magnetic field lines or use a meter to show the direction and magnitude of the current. You can also play with electromagnets, generators and transformers! Using multiple earthquake recording stations, determine the epicenter of an earthquake by analyzing the arrival of the primary and secondary waves at each recording station. Real-time charts are generated, providing data that allows for the triangulation of the epicenter. This animation shows all the earthquakes of magnitude 5 or greater that occurred all over the world from 2nd January 1999 to the 15th March 2003. The size of each dot indicates the relative magnitude of the earthquake. Chapter 5 – Imaging the invisible inside the body URL www.teachingmedicalphysics.org.uk Descriptive name Description IOP - Medical Physics Teaching Materials for Schools www.insidestory.iop.org IOP – Inside Story: Physics in Medicine It contains lessons as PowerPoint presentations and other material aimed at helping teachers to teach science with examples from medical physics. Particularly useful are the ‘Teachers' notes with worksheets’, ‘Text book’ and links to such sites as the ‘IOP/MRC – Inside Story: Physics in medicine’. - Investigate brain activity using Magnetic Resonance Imaging. www.colorado.edu/physics/2000/xray http://health.howstuffworks.com/medical-tests-andtreatment-channel.htm www.nlm.nih.gov/research/visible/visible_gallery.html Physics 2000 – Einstein’s Legacy – X-Rays How Stuff Works – Tests & Treatment Library Visible Human Project® Gallery - Inspect a large intestine by conducting a colonoscopy. - Perform a series of PET scans to diagnose disease. - Use radiotherapy to treat a cancerous tumour. Here we'll learn about how X-Ray machines work, including how x-rays are produced and why they work the way they do. How X-rays Work: X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal, thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones. How CAT Scans Work: CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides. How Ultrasound Works: Ultrasound can help doctors look inside a patient's body to see everything from heart valves to a moving baby. Find out how ultrasound works, what type of ultrasound techniques are available and what each technique can be used for. How MRI Works: MRI provides an unparalleled view inside the human body. The biggest and most important component in an MRI system is the magnet -- it could suck a metal watch right off your wrist and into the machine. Quiz Corner: MRI Quiz: An MRI machine is more than just a big, claustrophobia-inducing tube. How much do you know about what's going on inside -- or what's going on inside your body while you're in there? The collection of images appearing here is a small sample of images from the Visible Human Project® male dataset. Chapter 6 – Matter under the microscope URL http://phet.colorado.edu/simulations/sims.php?sim=Gas _Properties Descriptive name Description PhET – Gas Properties Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. http://jersey.uoregon.edu/Balloon/index.html Global View – Thermodynamics – Balloon www.physicslab.co.uk/gas.htm Physics Lab – Gas Laws www.explorelearning.com/index.cfm?method=cResourc e.dspDetail&ResourceID=422 Explore Science – Boyle’s Law and Charles’ Law www.7stones.com/Homepage/Publisher/Thermo1.html 7stones – Thermodynamics Pressure x Volume proportional to Temperature Gea-Banacloche – Kinetic Theory http://comp.uark.edu/~jgeabana/mol_dyn/KinThI.html www.mhhe.com/physsci/physical/giambattista/thermo/th ermodynamics.html McGraw Hill – The Law of Thermodynamics and Heat Engines http://aspire.cosmicray.org/javalabs/java12/gaslaws/index.htm?ASPIRE_Se ssion=6b7adc14e615463b9238612947848ba0 ASPIRE – Gas Particles in Motion This applet shows both the ideal gas law as well as the Maxwellian Velocity Distribution by using particles inside a balloon whose temperature can be adjusted. Digital readouts give the pressure and mean particle speed and the velocity distribution for a given temperature is graphically shown. A parameter tag also changes the state of the balloon to that of a planetary atmosphere where the concept of escape velocity and the tail of the velocity distribution can be shown. This program investigates the behavior of an ideal gas. The relationships between p,V and T, which determine the state of the gas, can be investigated by proper control of the variables. Investigate the properties of an ideal gas by performing experiments in which the temperature is held constant (Boyle's Law), and others in which the pressure remains fixed (Charles' Law). The pressure is controlled through the placement of masses on the lid of the container, and temperature is controlled with an adjustable heat source. In this very finite thermodynamics simulation, pressure P, volume V, and temperature T are compared. This Java applet simulates a two-dimensional gas of hard spheres. It illustrates several important concepts in statistical mechanics/kinetic theory. The Thermodynamics applet is designed to study the relationships between volume, pressure, and temperature in a gas-filled cylinder and piston system. Through your selection of different conditions, you can study four thermodynamic processes. See Student Labs: Activity 1 - Gas Particles in Motion: Changing Volume Activity 2 - Gas Particles in Motion: Changing http://demonstrations.wolfram.com/StraightCylinderEngi ne Wolfram Demonstrations Project – Straight Cylinder Engine http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm Animations for Physics and Astronomy – Thermo – Thermodynamic Cycles Physics Flashlets – Carnot Cycle http://galileoandeinstein.physics.virginia.edu/more_stuff/ flashlets/carnot.htm www.keveney.com/Engines.html www.keveney.com/otto.html http://mutuslab.cs.uwindsor.ca/schurko/animations/heat capacitymetals/heat_metal.htm www.youtube.com/watch?v=SxuT5ilxbgQ Matt Keveney – Animated Engines UWindsor – Schurko – Heat Capacity of Metals You Tube – The Arrow of Time Activity 3 - Gas Particles in Motion: Changing Volume and Temperature This demonstration shows a model of a typical straight cylinder engine, also known as a reciprocating engine. Each cylinder follows a 4-stroke cycle (also called an Otto cycle). The order of sparking is designed to minimize vibration and achieve smooth running. (Mathematica Player free download needed to run the demonstration.) See The Otto cycle in a Four Stroke Engine. You can embed the video in a webpage or downloaded the media file. Carnot engine in action! You can slow it down to see what’s going on, and choose other values of pressure and volume to vary the cycle. Visualise how an engine's unique linkage works. See ‘Four Stroke (Otto)’ for Four Stroke Engine. Heat transfer between a metal and water. A project for a Physics of Design class, demonstrating how the forward progression of time is nothing more than probability. Chapter 7 – Breaking matter down URL http://phys23p.sl.psu.edu/phys_anim/EM/indexer_EM.ht ml www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/EM/Coulomb/Coulomb.html www.surendranath.org/AppletsJ2.html Descriptive name Description Animations for Physics and Astronomy – Electron Guns Upscale – DM Harrison – Electricity and Magnetism General Physics Java Applets – New Electron Gun with Deflecting Plates. You can embed the video in a webpage or downloaded the media file. Coulomb's Law – A simulation of an experiment to determine the dependence of the electrostatic force on distance. Click Menu >Electricity >Moving Charge in Electric and Magnetic Fields Applets http://phys23p.sl.psu.edu/phys_anim/EM/indexer_EM.ht ml www.phy.ntnu.edu.tw/ntnujava/index.php?topic=33 Animations for Physics and Astronomy – Elec & Mag – Motion of a Charge in a Magnetic Field Mass-Spectrometer Applet CoLoS – Cyclotron www.cern.ch (and www.lhc.ac.uk ) CERN http://microcosm.web.cern.ch/Microcosm/RF_cavity/ex. html CERN – Accelerate a Particle http://public-old.web.cern.ch/publicold/Content/Chapters/Education/OnlineResources/Movi esPictures-en.html www.katemcalpine.com/webout.html www.youtube.com/watch?v=ahmKuSxkQjY www.particledetectives.net/html/main.html CERN – Videoclips and Movies www.physics.brocku.ca/applets/MassSpectrometer www.collidingparticles.com http://lppp.lancs.ac.uk Kate McAlpine – Large Hadron Rap Science and Technology Facilities Council – LHC Project Simulator Science and Technology Facilities Council – Colliding Particles: Hunting the Higgs Lancaster Particle Physics Package Shows the motion of a positive charged particle subject to Lorentz force. Charge in a Uniform B Field. You can embed the video in a webpage or downloaded the media file. Force on a Moving Charge: a Mass-Spectrometer. Change the B-field a accelerating voltage. The constancy of the cyclotron frequency led to a device called cyclotron. This applet let you play with a cyclotron. Go to ‘LHC’ (>What is the LHC). See also Education >Teaching Resources Accelerate the particle by flipping the batteries. (Also accessible from the CERN Teaching Resources page >Multimedia Material >Accelerating Cavities) See ‘CERN in 2 minutes’ and ‘The ATLAS experiment movie’. The original rap is also on YouTube. The remix link is given below. The Particle Detectives: The LHC Experiment Simulator is a challenge to find out what the universe is made of, how it started and why it's like it is. The first in a series of films following a team of physicists involved in research at the new Large Hadron Collider (LHC) at CERN in Switzerland. The animations in the LPPP simulate the real physics underlying the events that you are modelling. There is a gradual introduction to relativistic formulae and corresponding units for energy and mass. By following the suggested experiments, calculations and short projects, you will learn how to find the mass and identity of particles that you have created. http://demonstrations.wolfram.com/RussellsThoughtExp erimentInSpecialRelativity Wolfram Demonstrations Project – Russells Thought Experiment In Special Relativity http://rt210.sl.psu.edu/phys_anim/Phys_anim.htm Animations for Physics and Astronomy – Mod Phys – Relativity and Time Dilation Frederick H. Willeboordse's Simulations Gallery – Modern Physics – Mass is Relative Upscale – DM Harrison – Relativity http://chaos.nus.edu.sg/simulations/Modern%20Physics /Mass/mass.html http://faraday.physics.utoronto.ca/PVB/Harrison/SpecR el/Flash/LengthContract.html www.walter-fendt.de/ph14e/timedilation.htm Walter Fendt – Time Dilation Suppose an observer is on a platform at rest, a second observer is on a second platform that moves with a velocity that is a fraction of the speed of light relative to the first, a third observer moves with respect to the second with the same velocity, and so on. What is the relative velocity of each platform to the observer at rest? (Mathematica Player free download needed to run the demonstration.) A variety of videos comparing Galilean and Special Relativities. You can embed the video in a webpage or downloaded the media file. See how the mass of an object depends on its speed. Deriving Length Contraction. A tutorial that shows how relativistic length contraction must follow from the existence of time dilation. A spaceship is flying a distance of 5 light hours, for example from Earth to the planet Pluto. The speed can be regulated with the upper buttons. The applet demonstrates that the clock in the spaceship goes more slowly than the two clocks of the system in which Earth and Pluto are motionless. Chapter 8 – Energy from the nucleus URL www.upscale.utoronto.ca/GeneralInterest/Harrison/Flas h/Nuclear/Decay/NuclearDecay.html Descriptive name Description Upscale – DM Harrison – Nuclear http://lectureonline.cl.msu.edu/~mmp/applist/decay/dec ay.htm LON-CAPA – The Applet Collection – Radioactive Decay Nuclear Decays. The decay of 500 atoms of the fictional element Balonium. Uses a proper Monte Carlo engine to simulate real decays. A large number of red atomic nuclei, each obeying the same decay law. Select the half life time of the nuclei with the slider, press the start button, and watch them decay away as a function of time. www.iop.org/activity/education/Projects/Other Resources/Online_Resources/Teaching_radioactivity/p age_31313.html IOP – Schools and Colleges – Teaching Radioactivity www.visualsimulations.co.uk/software.php?program=at omscope2 Visual Simulations – AtomScope www.colorado.edu/physics/2000/index.pl Physics 2000 – Science Trek – Isotopes & Radioactivity Wolfram Demonstrations Project – Inverse Square Laws http://demonstrations.wolfram.com/InverseSquareLaws/ www.teachingmedicalphysics.org.uk IOP – Medical Physics Teaching Materials for Schools www.insidestory.iop.org IOP – Inside Story: Physics in Medicine http://schools.matter.org.uk/Content/Capacitors/Default. htm Matter Project – Capacitors With four, high quality, 3D animations from Teachers TV: www.teachers.tv/video/27400 - Radiation Ionises the Air - The Cloud Chamber - The Spark Counter - The Properties of Alpha, Beta and Gamma They are designed to help visualise what is happening at a microscopic and atomic level. First select ‘Nuclear and Sub-Atomic’ from the AtomScope menu and then select the ‘Radioactive Decay’ option. Students can record the number of decayed atoms in a table at 10 second time intervals. When they have finished they can plot the results on a graph and calculate the half-life. Select ‘Science Trek – Isotopes & Radioactivity’ and follow the tutorial. Gravity, electrostatic force, and luminosity are inversely proportional to the square of the distance. This source gives an idea of why: an area projected from the center of a sphere grows proportionately to the square of the distance. (Mathematica Player free download needed to run the demonstration.) It contains lessons as PowerPoint presentations and other material aimed at helping teachers to teach science with examples from medical physics. Particularly useful are the ‘Teachers' notes with worksheets’, ‘Text book’ and links to such sites as the ‘IOP/MRC – Inside Story: Physics in medicine’. - Investigate brain activity using Magnetic Resonance Imaging. - Inspect a large intestine by conducting a colonoscopy. - Perform a series of PET scans to diagnose disease. - Use radiotherapy to treat a cancerous tumour. Provide a definition of capacitance and name its units. Explain why a capacitor has a maximum working voltage. Determine experimentally the energy stored in a www.phy.ntnu.edu.tw/ntnujava/index.php?topic=31 CoLoS – RC Circuits http://lectureonline.cl.msu.edu/~mmp/kap23/RC/app.ht m LON-CAPA – The Applet Collection – Charging a Capacitor capacitor. Explain and determine experimentally the time constant. Shows the transient behaviour that occurs when the capacitor is being charged and discharged. Change the capacitance and resistance in an RC circuit. After closing the switch, you can observe the time evolution of the charging of the capacitor. Descriptive name Description Matter Project – Nuclear Binding Energy PhET – Nuclear Physics This interactive tutorial deals with the calculation of nuclear binding energies and their comparison with known values. Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Watch alpha particles escape from a Polonium nucleus, causing radioactive alpha decay. Control energy production in a nuclear reactor! This applet simulates what happens in a nuclear chain reaction. Each green dot you see here represents a nucleus that spontaneously fissions, if a neutron hits it. Chapter 9 – Nuclear reactions URL http://schools.matter.org.uk/Content/NuclearBindingEne rgies/index.html http://phet.colorado.edu/simulations/sims.php?sim=Nucl ear_Physics http://lectureonline.cl.msu.edu/~mmp/applist/chain/chai n.htm or www.lon-capa.org/~mmp/applist/chain/chain.htm www.eas.asu.edu/~holbert/eee460/pwr.html www.atomicarchive.com/Movies/index_movies.shtml http://fusedweb.llnl.gov/CPEP www.jet.efda.org/pages/multimedia/movies/classroom2 100/index.html LON-CAPA – The Applet Collection – Nuclear Chain Reaction ASU – Pressurised Water Reactor Atomic Archive – Videos CPEP – FusEdWeb – Fusion Energy Education JET – Energy of the Future - Fusion 2100 An explanation of the pressurised water reactor system. Historic videos illustrating the tremendous effects of a nuclear explosion, including "Now I become death..." J. Robert Oppenheimer's reflections of the first atomic bomb test. Fusion – Physics of a Fundamental Energy Source. Click anywhere on this picture to go to the relevant fusion topic, or try the Guided Tour. How will a fusion power plant work? At what stage is fusion research today? The film gives an entertaining and informative nine-minutes account in which a school class in 2100 reenacts the development of fusion energy.