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yr 8 Energy Revision
| Term | Definition |
|---|---|
| kinetic energy | the energy of a moving object |
| potential energy | energy that is stored and then used once it is converted to something else |
| gravitational potential energy | when something is at any height above the ground |
| elastic potential energy | when something is stretched, it will then return to its original size and shape |
| mechanical energy | kinetic energy plus potential energy |
| chemical energy | any energy that is stored in chemicals |
| heat energy | the energy that hot objects have or when any heat is produced |
| sound energy | waves that travel from place to place caused by vibrations |
| light energy | any energy where light is released. |
| electrical energy | energy that comes from electricity |
| nuclear energy | energy that is stored inside atoms |
| kinetic energy examples | running, moving car, throwing a ball |
| potential energy examples | drawing a bow, dynamite |
| gravitational potential energy examples | rollercoaster, dropping a ball |
| elastic potential energy examples | stretching a rubber band or spring |
| mechanical energy examples | lawn mower, car, windmill |
| chemical energy examples | food, batteries, petrol |
| heat energy examples | fire, stove, toaster |
| sound energy examples | trumpet, alarm clock, balloon popping |
| light energy examples | sun, light bulb, torch |
| electrical energy examples | laptop, phone, tv |
| nuclear energy examples | fusion and splitting of atoms |
| m | mass |
| g | gravity |
| h | height |
| v | velocity or speed |
| energy unit of measurement | joules |
| wasted energy is lost as | heat |
| energy transfer | energy being transferred between objects |
| energy transformation | energy being transformed from one type to another |
| energy efficiency | how well something reduces energy being wasted |
| law of conservation of energy | energy cannot be created or destroyed only changed in form |
Created by:
justineforrest
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