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8 Cards in this Set
- Front
- Back
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Work |
Done whenever something moves SI Unit- joule(J) Work done= force x distance moved in direction of force W=fd |
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Kinetic Energy |
Energy due to motion Kinetic energy= 1/2mv2 |
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Potential energy |
Energy which an object has because of its changed position, shape or state Gravitational potential energy= mgh |
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Efficiency |
Useful work done/total energy input OR Useful energy output/total energy input |
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Power |
Work done/time taken OR Energy transformed/time taken |
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Power |
The rate at which work is done SI Unit= watt(W) |
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Nuclear fission |
Splitting of uranium atoms for nuclear energy to be released |
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Nuclear fusion |
The nuclei (centres) of hydrogen atoms are pushed together to form helium |
