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Phys Chap 6
terms from chapter 6 notes
| Question | Answer |
|---|---|
| not a thing | energy |
| ability to do work or cause change | energy |
| Unit for all types of energy | Joule (J) |
| Result of force applied over a distance. ____=F*D | work |
| Stored energy do to position or condition | potential energy |
| Potential energy do to the position of an object above the earth | Gravitational Potential energy (GPE) |
| Kinetic energy is causing what? | change |
| Energy of motion | Kinetic |
| Type of mechanical energy from an object that can stretch or compress. | Elastic PE |
| Mechanical energy can be both potential and | kinetic |
| Involves movement of matter, usually visible | Mechanical energy |
| Every particle of matter is in constant ______ | motion |
| Movement of thermal energy in and out is | heat |
| You measure thermal energy by measuring changes in | temperature |
| Faster movement of particles means ____ heat and _____ energy | more |
| Thermal energy is a type of _____ energy | kinetic |
| You measure thermal energy by measuring changes in | temperature |
| Acoustic energy is kinetic and is the transmission of energy by a | wave |
| This energy type involves back and forth motion | acoustic |
| A ____ is the time it takes to complete one cycle | period |
| This type of energy is the ability to do work through the influence of a magnetic field | Magnetic |
| Magnetic energy is created by the attraction and repulsion of N and S | poles |
| Any object that is conducting electricity also generates a | magnetic field |
| Electromagnetic waves radiated by matter | Radiant energy |
| Radiant energy is generated by causing an | electromagnetic field |
| Radiant energy is the only kind of energy that can travel through a | vacuum |
| Radiant energy is the only energy that reaches earth from the | sun |
| Potential energy stored in chemical bonds | chemical |
| Chemical energy is released when _____ breaks | bonds |
| Chemical energy is released when _____ breaks | bonds |
| Example of chemical, potential energy | food |
| Example of electrical energy | batteries |
| example of thermal energy | steam |
| Potential energy stored in the atom's nucleus | nuclear |
| combining two nuclei | fusion |
| splitting a large nucleus | fission |
| fuse | together |
| Example of nuclear PE/KE energy | nuclear bombs |
| fuse | together |
| Energy found in matter | mass |
| Mass energy is the _____ source of potential energy | greatest |
| The idea that you could convert all of an atom's mass into energy is a part of | mass energy |
| In E=mc^2 the c stands for the | speed of light |
| Which has greater GPE, a boy on top of a car or a boy on top of a house.1 | boy on the house |
| Energy can never be created nor destroyed, only changed from one form to another | Law of Conservation of Energy |
| The total energy entering the process equals the total energy that exists at the end of the process. | Third Law of Thermodynamics |
| Energy In = | Energy out |
| The amount of usuable energy produced divided by the amount of energy available before transformation | efficiency |
| The position from which the distance is measured | zero reference point |
| Decrease thermal energy is | cooling |
| Gaining of thermal energy is | heating |
Created by:
kdcribb
on 2011-10-17