![SNC1PL The Life Cycle of Stars](http://s1.studyres.com/store/data/008084182_1-88908842b1811f8a0a7019339da5b345-300x300.png)
Slide 1
... G. Potential Energy- the energy an object has because of its position or shape. It has energy because work has been already done to it. ...
... G. Potential Energy- the energy an object has because of its position or shape. It has energy because work has been already done to it. ...
Pre Test - broward.k12.fl.us
... a) The principle that energy is conserved in simple machines does not hold when an atom emits a photon due to electron transitions. b) The law determining the gravitational pull between the sun and planets does not describe the gravitational force between small meteors. c) The Newtonian concepts of ...
... a) The principle that energy is conserved in simple machines does not hold when an atom emits a photon due to electron transitions. b) The law determining the gravitational pull between the sun and planets does not describe the gravitational force between small meteors. c) The Newtonian concepts of ...
Additional Energy Terms
... by temperature • Methods of transfer (going from one location to another, from area of higher to lower energy)- conduction, convection, radiation. • Conductor- energy moves easily through it • Insulator – energy does not move easily through it How are these important to energy savings? ...
... by temperature • Methods of transfer (going from one location to another, from area of higher to lower energy)- conduction, convection, radiation. • Conductor- energy moves easily through it • Insulator – energy does not move easily through it How are these important to energy savings? ...
The Universe and Galaxies - West Jefferson Local Schools
... stars, planets, _________, _________, asteroids, dark matter, dark energy - Dark matter – theoretical unseen and undetectable mass that adds to the gravity of a galaxy - Dark energy – theoretical energy that might be causing accelerated expansion of the universe - most things we see in space are _ ...
... stars, planets, _________, _________, asteroids, dark matter, dark energy - Dark matter – theoretical unseen and undetectable mass that adds to the gravity of a galaxy - Dark energy – theoretical energy that might be causing accelerated expansion of the universe - most things we see in space are _ ...
The Universe and Galaxies - West Jefferson Local Schools
... stars, planets, _________, _________, asteroids, dark matter, dark energy - Dark matter – theoretical unseen and undetectable mass that adds to the gravity of a galaxy - Dark energy – theoretical energy that might be causing accelerated expansion of the universe - most things we see in space are _ ...
... stars, planets, _________, _________, asteroids, dark matter, dark energy - Dark matter – theoretical unseen and undetectable mass that adds to the gravity of a galaxy - Dark energy – theoretical energy that might be causing accelerated expansion of the universe - most things we see in space are _ ...
Definitions: Thermal energy
... Our model of matter as composed of many small moving particles allows us to extend energy conservation to include resistive forces. The energy associated with the motion of a single object is coherent; all parts of the object move in the same way. The object has a net momentum associated with its ki ...
... Our model of matter as composed of many small moving particles allows us to extend energy conservation to include resistive forces. The energy associated with the motion of a single object is coherent; all parts of the object move in the same way. The object has a net momentum associated with its ki ...
Energy Transformations
... 4 - Cite evidence to support the Law of Conservation of Energy. 3 - Investigate and describe the transformation of energy that occurs in given examples. 2 - Differentiate between kinetic and potential energy. 1 - Identify examples of kinetic and potential energy. ...
... 4 - Cite evidence to support the Law of Conservation of Energy. 3 - Investigate and describe the transformation of energy that occurs in given examples. 2 - Differentiate between kinetic and potential energy. 1 - Identify examples of kinetic and potential energy. ...
IOSR Journal of Applied Physics (IOSR-JAP) ISSN: 2278-4861.
... After the super-explosion (The Big-Bang), according to the nebula hypothesis [1], the solar system began as a nebula, an area in the Milky Way Galaxy that was a swirling concentration of cold gas and dust. Due to some perturbation, possibly from the nearby supernova this cloud of gas and dust began ...
... After the super-explosion (The Big-Bang), according to the nebula hypothesis [1], the solar system began as a nebula, an area in the Milky Way Galaxy that was a swirling concentration of cold gas and dust. Due to some perturbation, possibly from the nearby supernova this cloud of gas and dust began ...
Black Hole
... Black Hole - a theoretical massive object, formed at the beginning of the universe or by the gravitational collapse of a star exploding as a supernova, whose gravitational field is so intense that no electromagnetic radiation can escape. ...
... Black Hole - a theoretical massive object, formed at the beginning of the universe or by the gravitational collapse of a star exploding as a supernova, whose gravitational field is so intense that no electromagnetic radiation can escape. ...
Chapter 10 Energy PowerPoint
... Law of Conservation of Energy: Energy can neither be created or destroyed. When we use energy, we degrade its usefulness and the quality of that energy is lowered. Concentrated energy (like gasoline) used to do work becomes energy that is spread out throughout the universe. Energy concerns are b ...
... Law of Conservation of Energy: Energy can neither be created or destroyed. When we use energy, we degrade its usefulness and the quality of that energy is lowered. Concentrated energy (like gasoline) used to do work becomes energy that is spread out throughout the universe. Energy concerns are b ...
TCE Syllabus Summary Blank
... identify data sources, and gather, process and analyse information to assess one of the models of the Universe developed from the time of Aristotle to the time of Newton to identify limitations placed on the development of the model by the technology available at the time ...
... identify data sources, and gather, process and analyse information to assess one of the models of the Universe developed from the time of Aristotle to the time of Newton to identify limitations placed on the development of the model by the technology available at the time ...
Properties of Matter
... but we do not have to be able to see matter, for eg., we are not able to see air but air is also matter. Matter is classified as solid, liquid or gas. There are three states of matter 1. Solids – definite shape and definite volume - do not flow - tightly packed particles - motion of particles is hig ...
... but we do not have to be able to see matter, for eg., we are not able to see air but air is also matter. Matter is classified as solid, liquid or gas. There are three states of matter 1. Solids – definite shape and definite volume - do not flow - tightly packed particles - motion of particles is hig ...
How is Work and Power Related? Chapter 5 Work and Power
... multiply force OR distance Increasing force or distance are at the expense of the other variable Energy is conserved in an ideal situation no friction Work in would equal Work out in another words F x d (in) = F x d (out) Work in is done on the machine and Work out is done by the machine ...
... multiply force OR distance Increasing force or distance are at the expense of the other variable Energy is conserved in an ideal situation no friction Work in would equal Work out in another words F x d (in) = F x d (out) Work in is done on the machine and Work out is done by the machine ...
File
... 4. A 12-kg sled is moving at a speed of 5 m/s. At what speed will the sled have twice as much kinetic energy? 5. An object’s gravitational potential energy is directly related to… 6. Give three examples of objects with elastic potential energy. 7. A 3-kilogram cat is resting on top of a bookshelf th ...
... 4. A 12-kg sled is moving at a speed of 5 m/s. At what speed will the sled have twice as much kinetic energy? 5. An object’s gravitational potential energy is directly related to… 6. Give three examples of objects with elastic potential energy. 7. A 3-kilogram cat is resting on top of a bookshelf th ...
Milky Way Galaxy
... •Galaxy: large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. The Milky Way measures about 100,000 light-years across, and is thought to contain 200 billion stars. •Universe: the totality of known or supposed objects and phenomena ...
... •Galaxy: large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. The Milky Way measures about 100,000 light-years across, and is thought to contain 200 billion stars. •Universe: the totality of known or supposed objects and phenomena ...
UA Glossary2 - Berkeley Center for Cosmological Physics
... Light- A general term for electromagnetic radiation, usually referring wavelengths within the visible part of the electromagnetic spectrum. Light Cone- A region of space-time (shaped like two cones placed peak to peak) that can be used to describe the history of an event. For example, if a pulse of ...
... Light- A general term for electromagnetic radiation, usually referring wavelengths within the visible part of the electromagnetic spectrum. Light Cone- A region of space-time (shaped like two cones placed peak to peak) that can be used to describe the history of an event. For example, if a pulse of ...
News Analysis - Learning Space
... It simplified large number of physical theories It is not rigid, it is flexible. It can be distorted and warped as large masses move through it. ...
... It simplified large number of physical theories It is not rigid, it is flexible. It can be distorted and warped as large masses move through it. ...
Energy - Office Mix
... Energy: Ability to do work Different Types of Energy The Ninja, a roller coaster at Six Flags over Georgia, has a height of 122 ft and a speed of 52 mi/h. The potential energy due to its height changes into kinetic energy of motion. ...
... Energy: Ability to do work Different Types of Energy The Ninja, a roller coaster at Six Flags over Georgia, has a height of 122 ft and a speed of 52 mi/h. The potential energy due to its height changes into kinetic energy of motion. ...
What Is Energy Power Point
... – When you stretch a rubber band, it has the potential to snap back to its original shape. When you flick one across the room, you are transferring the elastic PE from the stretch into KE when you release it to make it fly. – When you squeeze a stress ball, it has the potential to decompress. Elasti ...
... – When you stretch a rubber band, it has the potential to snap back to its original shape. When you flick one across the room, you are transferring the elastic PE from the stretch into KE when you release it to make it fly. – When you squeeze a stress ball, it has the potential to decompress. Elasti ...
Solutions - UC Berkeley Astronomy w
... Supernovae are used as standard candles to measure distances to distant galaxies. This is then compared to the redshift of these galaxies, which provides their velocities. By comparing changes in the velocities at different distances (which corresponds to different times) we can infer whether there ...
... Supernovae are used as standard candles to measure distances to distant galaxies. This is then compared to the redshift of these galaxies, which provides their velocities. By comparing changes in the velocities at different distances (which corresponds to different times) we can infer whether there ...
AST101_lect_25
... Olber’s Paradox Suppose the universe is infinite • In whatever direction you look, you will see a star • The brightness of an individual star falls by the inverse square law: I ~ d-2 • The number of stars increases as d2 The night sky should be as bright as the surface of the Sun! ...
... Olber’s Paradox Suppose the universe is infinite • In whatever direction you look, you will see a star • The brightness of an individual star falls by the inverse square law: I ~ d-2 • The number of stars increases as d2 The night sky should be as bright as the surface of the Sun! ...
Dark energy
![](https://commons.wikimedia.org/wiki/Special:FilePath/Dark_Energy.jpg?width=300)
In physical cosmology and astronomy, dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe. Dark energy is the most accepted hypothesis to explain the observations since the 1990s indicating that the universe is expanding at an accelerating rate. Assuming that the standard model of cosmology is correct, the best current measurements indicate that dark energy contributes 68.3% of the total energy in the present-day observable universe. The mass–energy of dark matter and ordinary matter contribute 26.8% and 4.9%, respectively, and other components such as neutrinos and photons contribute a very small amount. Again on a mass–energy equivalence basis, the density of dark energy (6.91 × 10−27 kg/m3) is very low, much less than the density of ordinary matter or dark matter within galaxies. However, it comes to dominate the mass–energy of the universe because it is uniform across space.Two proposed forms for dark energy are the cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space. Contributions from scalar fields that are constant in space are usually also included in the cosmological constant. The cosmological constant can be formulated to be equivalent to vacuum energy. Scalar fields that do change in space can be difficult to distinguish from a cosmological constant because the change may be extremely slow.High-precision measurements of the expansion of the universe are required to understand how the expansion rate changes over time and space. In general relativity, the evolution of the expansion rate is parameterized by the cosmological equation of state (the relationship between temperature, pressure, and combined matter, energy, and vacuum energy density for any region of space). Measuring the equation of state for dark energy is one of the biggest efforts in observational cosmology today.Adding the cosmological constant to cosmology's standard FLRW metric leads to the Lambda-CDM model, which has been referred to as the ""standard model of cosmology"" because of its precise agreement with observations. Dark energy has been used as a crucial ingredient in a recent attempt to formulate a cyclic model for the universe.