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absorption acceleration the transfer of energy carried by light waves to particles of matter the rate at which velocity changes Image Source: http://static.howstuffworks.com/gif/light-arrow-absorption.jpg Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. amplitude atom maximum distance a wave vibrates from its rest position the smallest particle into which an element can be divided and still be the same substance Image Source: https://www.msu.edu/~peders32/images/waveamplitude.GIF atomic mass atomic number the weighted average of the masses of all the naturally occurring isotopes of an element number of protons in the nucleus of an atom Image Source: http://chemwiki.ucdavis.edu/@api/deki/files/4181/=Lithium_final.jpg Image Source: http://salksperiodictable.wikispaces.com/file/view/Woodium.jpg/96261924/Woodium.jpg balanced forces boiling point forces on an object that cause the net force to be zero the temperature at which a liquid boils and becomes a gas Image Source: http://media-2.web.britannica.com/eb-media/88/78188-004-43BFD14F.jpg cell chemical change a device that produces an electric current by converting chemical energy into electrical energy a change that occurs when one or more substances are changed into entirely new substances with different properties Image Source: http://salksperiodictable.wikispaces.com/file/view/Woodium.jpg/96261924/Woodium.jpg chemical energy chemical formula C6H12O6 the energy of a compound that changes as its atoms are rearranged to form a new compound Image Source: http://www.mhhe.com/physsci/chemistry/chang7/esp/folder_structure/en/m1/s1/assets/images/enm1s1_1_1.jpg a shorthand notation for a compound or a diatomic element using chemical symbols and numbers chemical property chemical symbol property of matter that describes a substance based on its ability to change into a new substance with different properties the abbreviation for an element on the periodic table Image Source: http://bostonbiker.org/files/2009/12/rust3.jpg Image Source: http://www.propertiesofmatter.si.edu/images/L21/c13_Ne.jpg circuit circuit breaker a complete, closed path through which electric charges flow a device that breaks the circuit and is used to protect you from an over heating of a circuit Image Source: http://demo.physics.uiuc.edu/lectdemo/descript/793/Simple-circuit-off.jpg Image Source: http://minerva.union.edu/hollochk/xrd/images/breaker_box.jpg combustibility compound the chemical property aka flammability (the measure of how easily a substance will burn) a pure substance composed of two or more elements that are chemically combined Image Source: http://www.storksmt.com/images/TechnicalServices/SMT/services/Flammability200.gif Image Source: http://www.fordhamprep.org/gcurran/sho/sho/images/images/science/miscella/aspirin.gif compound machine conduction a machine that is made of two or more simple machines a transfer of electrons (electricity) or heat (energy) through direct contact Image Source: http://teemss2.concord.org/artwork/Teemss2_images/Units/u07_i02/ rubegoldbergwplace/u07_i02_web_rubegoldbergwplace.png Image Source: http://www.geography.hunter.cuny.edu/~tbw/wc.notes/2.heating.earth.surface/images/mechanisms.heat.transfer.jpg conductor convection a substance that allows the flow of electrons (electricity) or heat (energy) easily a transfer of thermal energy by the movement of a liquid or a gas Image Source: http://image.made-in-china.com/2f0j00ACktNdvflqoT/ACSR-Conductor-for-BS-215.jpg Image Source: http://www.geography.hunter.cuny.edu/~tbw/wc.notes/2.heating.earth.surface/images/mechanisms.heat.transfer.jpg current density rate at which a charge passes a given point the amount of matter in a given space Image Source: http://3.bp.blogspot.com/_Qar5JM1qR54/R2MTfu7LCHI/AAAAAAAABAI/WnnoJnWwDAY/s400/Electrocuted2.JPG Image Source: http://www.autocalculator.org/Images/Calculators/density-volume-mass.jpg diffraction electric charge the bending of waves around a barrier or through an opening a charge on a subatomic particle (negative charges would be electrons and positive charges are called (+ ions) Image Source: http://www.gcsescience.com/Diffraction-Water-Waves.gif Image Source: http://www.windows2universe.org/earth/Atmosphere/images/lightning_stroke.jpg electric force electrical energy the force between charged objects the energy of electric charges Image Source: http://www.staff.amu.edu.pl/~romangoc/graphics/EM1/4-electric-field/EM1-4-fig1.gif Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. electricity electromagnetic a flow of electrons the interaction of both an electric field and a magnetic field together Image Source: http://www.studentsoftheworld.info/sites/family/img/27335_Electricity.jpg Image Source: http://student.dcu.ie/~heeryf2/images/electromagnet2.gif element force a pure substance that cannot be separated or broken down into simpler substances by physical or chemical means a push or a pull Image Source: http://www.askanddiscuss.com/blog/wp-content/uploads/2008/03/copper.jpg Image Source: http://misskmaas.files.wordpress.com/2009/05/0199210896-centrifugal-force-1.jpg frequency friction the number of waves produced in a given amount of time a force that opposes motion between two surfaces that are touching Image Source: https://bbamusic.wikispaces.com/file/view/Frequency4.JPG/32717592/Frequency4.JPG Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. fuse gas state used for safety and contains a wire that melts if the circuit is to hot causing the electrons to stop their flow the state in which matter change in both shape and volume Image Source: http://media.digikey.com/photos/Littelfuse%20Photos/3AG%20FUSE%20313%20SERIES.jpg Image Source: http://www.ilpi.com/msds/ref/gifs/statesofmatter.gif gravity groups (family) a force of attraction between objects that is due to their masses a column of elements on the periodic table Image Source: http://www.icteachers.co.uk/children/sats/images/gravity.gif Image Source: http://www.learner.org/interactives/periodic/images/alkalimetals_new.gif heat heat transfer the transfer of energy between objects that are at different temperatures energy that is being moved from one object to another Image Source: http://www.geo4va.vt.edu/A3/natural-heat-flow.gif Image Source: http://blog.netoffer.com/texas-inspections/files/2009/10/heat-transmittance-means1.jpg inclined plane induction a simple machine that is a straight, slanted surface a method of charging an object that occurs when charges in an uncharged object are rearranged without direct contact with a charged object Image Source: http://etc.usf.edu/clipart/7700/7777/incline_7777_lg.gif Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. inertia insulator the tendency of all object to resist any change in motion an object that does not allow the electrons (if talking about electricity) or heat (if talking about energy) to flow Image Source: http://blog.niot.net/blog-images/14_may/iihs-releases-official-results-on-the-smart-fortwo.jpg Image Source: http://www.fsis.usda.gov/OA/pubs/cfg/Color/jpg/09-cooler.jpg joule kinetic energy the unit used to express work and energy the energy of motion Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. Image Source: http://www.petervaldivia.com/technology/energy/image/potencial-and-kinetic.bmp law of conservation of energy law of conservation of matter the law that states that energy is neither created nor destroyed the law that states that mass is neither created nor destroyed in ordinary chemical and physical changes Image Source: http: //images.clipartof.com/small/69899-Royalty-Free-RF-Clipart-Illustration-Of-A-Red-Pendulum-Ball-Swinging.jpg Image Source: http://martine.people.cofc.edu/111LectWeek1_fi law of universal gravitation lens the law that states that all objects in the universe attract each other through gravitational force a curved, transparent object that forms an image by refracting light Image Source: http://www.sciencemuseum.org.uk/onlinestuff/snot/~/media/818B16FC66D44386927D789A9280BA5D.ashx?db=master Image Source: http://www.physics.uiowa.edu/~umallik/adventure/geo-optics/lenses.gif lever light energy a simple machine consisting of a bar that pivots at a fixed point, called a fulcrum the energy produced by the vibrations of electrically charged particles Image Source: http://newdirectionira.com/Portals/40913/images//man-and-lever.jpg Image Source: http://blog.makezine.com/LED_Light_painting.jpg liquid state load the state in which matter takes the shape of its container and has a definite volume a device that uses electrical energy to do work Image Source: http://www.ilpi.com/msds/ref/gifs/statesofmatter.gif Image Source: http://electronics-for-beginners.com/pictures/bulb_circuit.PNG magnetic energy magnetic field the potential energy of a magnetic field the region around a magnet in which magnetic forces can act Image Source: http://www.nasa.gov/centers/goddard/images/content/203911main_TRACE_loop_arcade_lg.jpg magnetic force magnetism the force of repulsion or attraction between the poles of magnets describes how materials made of metals respond to a magnetic field Image Source: http://startswithabang.com/wp-content/uploads/2008/11/28_01_bar_magnets.JPG Image Source: http://www.dorlingkindersley-uk.co.uk/static/clipart/uk/dk/science/image_science009.jpg mass mechanical advantage the amount of matter that something is made of a number that tells how many times a machine multiplies force Image Source: http://www.practicalphysics.org/imageLibrary/jpeg500/1247.jpg Image Source: http://www.dynamicscience.com.au/tester/solutions/hydraulicus/animatedfourpulley.gif mechanical energy melting point the total energy of motion and position of an object the temperature at which a substance changes from a solid to a liquid Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. Image Source: http://gallery.hd.org/_exhibits/natural-science/ice-melting-in-water-with-thermometer-at-zero-degrees-Celsius-AJHD.jpg metalloids metals elements that have properties of both metals and nonmetals elements that are shiny and are good conductors of thermal energy and electric current Image Source: http://www.iq.poquoson.org/dollaraire/8sci/metalloid.jpg Image Source: http://chrisdesign.files.wordpress.com/2008/02/metals.jpg mixture molecule a combination of two or more substances that are not chemically combined a neutral group of atoms held together by covalent bonds Image Source: http://sweetieheaven.co.uk/images/dolly%20mixture.jpg Image Source: http://www.3dchem.com/imagesofmolecules/water.jpg Newton’s first law Newton’s second law an object at rest remains at rest and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force the acceleration of an object depends on the mass of the object and the amount of force applied Image Source: http://www.steelbeach.com/fsri/PropulsionTheory/01NewtonsLaws/images/PT-01-015.jpg Image Source: http://drbonesshow.com/images-m1/m1m2.jpg Newton’s third law nonmetals whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first elements that are dull and are poor conductors of thermal energy and electric current Image Source: http://www.sciencetoymaker.org/balloon/images/newton.gif Image Source: http://img.alibaba.com/photo/12263769/All_Kinds_Of_Non_Metal_Buttons.jpg nuclear energy parallel circuit the form of energy associated with changes in the nucleus of an atom a circuit in which different loads are on separate branches Image Source: http://library.thinkquest.org/06aug/01200/Graphics/800px-Nuclear_Power_Plant_Cattenom.jpg Image Source: http://paphysicalscience.wikispaces.com/file/view/parellecircuit.gif/77620101/parellecircuit.gif periodic table period an arrangement of elements according to increasing atomic number so that elements with similar properties are in the same column a horizontal row of elements on the periodic table Image Source: http://library.thinkquest.org/3616/chem/periodic.gif Image Source: http://www.chem.ufl.edu/~itl/2045/react/02p79a.jpg physical change physical property a change that affects one or more physical properties of a substance a property of matter that can be observed or measured without changing the identity of the matter Image Source: http://www.chem4kids.com/files/art/matter_intro_2_240.gif Image Source: http://us.123rf.com/400wm/400/400/darren/darren0803/darren080300016/2656223.jpg pitch plasma state how high or low a sound is perceived to be the state of matter that does not have a definite shape or volume and whose particles have broken apart Image Source: http://www.scittscience.co.uk/wp-content/uploads/2009/01/changing_sounds_p3_1.gif Image Source: http://ds9.ssl.berkeley.edu/themis/images/phases_large.jpg potential energy power the energy of position or shape the rate at which work is done Image Source: http://www.petervaldivia.com/technology/energy/image/potencial-and-kinetic.bmp Image Source: http://www.faqs.org/photo-dict/photofiles/list/707/2426power_line.jpg pulley pure substance a simple machine consisting of a grooved wheel that holds a rope of a cable a substance in which there is only one type of particle Image Source: http://www.lhup.edu/~dsimanek/scenario/labman1/pulley1.gif Image Source: http://www.chem4kids.com/files/art/matter_mixture1.gif radiation reactivity the transfer of energy through matter or space as electromagnetic waves a chemical property that is used to determine how elements react with one another Image Source: http://www.geography.hunter.cuny.edu/~tbw/wc.notes/2.heating.earth.surface/images/mechanisms.heat.transfer.jpg Image Source: http://www.plenrich.com/images/cuhno3.jpg reflection refraction the bouncing back of a wave after it strikes a barrier or an object the bending of a wave as it passes at an angle from one medium to another Image Source: http://www.deeppencil.com/images/dog-mirror1.jpg Image Source: http://webphysics.davidson.edu/faculty/dmb/EdibleOpticalMaterials/glass_of_water.jpg screw series circuit a simple machine that is an inclined plane wrapped in a spiral a circuit in which all parts are connected in a single loop Image Source: http://www.forteachersforstudents.com.au/EngQuest/images/SM_diagram12.jpg Image Source: http://paphysicalscience.wikispaces.com/file/view/series_cicuit.gif/77619479/series_cicuit.gif simple machines solid state the six machines from which all other machines are constructed the state in which matter has a definite shape and volume Image Source: https://www.glastonburyus.org/staff/SOCHAF/science/PublishingImages/SimpleMachinesImages.jpg Image Source: http://www.ilpi.com/msds/ref/gifs/statesofmatter.gif sound energy speed the energy caused by an object's vibrations the rate at which an object moves Image Source: http://www.petervaldivia.com/technology/energy/image/potencial-and-kinetic.bmp static charge static discharge a charge that is not moving off of an object the loss of static electricity as charges move off an object Image Source: http://2.bp.blogspot.com/_bQsYBGKxf5Y/RyIjqNKhulI/AAAAAAAACZI/A9OZUjnGFiY/s400/DSCF6446-1.jpg Image Source: http://www.esdepoxy.com/images/static_flooring_images/ESD-articles-drawings-installation/charged-1.jpg static electricity switch the buildup of electric charges on an object a device that is used to control the flow of electrons in a circuit Image Source: http://paphysicalscience.wikispaces.com/file/view/static-electricityhair-stand-on-end1.jpg/77618111/static-electricity-hair-stand-on-end1.jpg temperature thermal energy a measure of how hot (or cold) something is the total energy of the particles that make up an object Image Source: Physical Science. Austin, Texas: Holt, Rinehart and Winston, 2001. thermal expansion time increase in volume of a substance due to the increase in temperature the rate at which something is done Image Source: http://thumbs.dreamstime.com/thumb_318/1223058496A2O10B.jpg unbalanced forces velocity the forces on an object that cause the net force to be other than zero the speed of an object in a particular direction Image Source: http://www.animalpicturesforkids.info/images/wmwallpapers/HighVel watt wavelength the unit used to express power the distance between one point on a wave and the corresponding point on an adjacent wave in a series of waves Image Source: http://americanhistory.si.edu/powering/basics/watt_1.gif Image Source: http://www.bom.gov.au/weather/radar/about/images/wavelength.gif wedge weight a simple machine that is a double inclined planethat moves a measure of the gravitational force exerted on an object Image Source: http://www.milwaukeechaplet.com/images/foundry/Misc_Wood_wedge.jpg Image Source: http://skinbeautifulblog.files.wordpress.com/2008/04/weight-loss.jpg wheel and axle work a simple machine consisting of two circular objects of different sizes the action that results when a force causes and object to move in the direction of the force Image Source: http://www.northallegheny.org/schools/mms/TSA%202006/TSA2007/Images/diagram1.gif Image Source: http://www.research.plymouth.ac.uk/cerg/images/work.gif