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8 Cards in this Set
- Front
- Back
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What is an Energy Store? |
Energy that can be stored for a long time |
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Give an example of an energy store |
A spring (elastic potential energy) |
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List some energy stores |
Chemical Thermal Elastic Potential Gravitational Potential Kinetic |
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List some examples of energy transfers |
light (waves) sound (waves) Heating Electric Current Forces (e.g. gravity) |
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What is efficiency the measure of? |
how much energy is wasted during a transfer |
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How efficient is something if most of the energy is wasted? |
inefficient |
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How efficient is something if most of the energy is used and not wasted? |
efficient |
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What equation do you use to calculate efficiency? |
useful --------- x 100 total |
