forces doing work

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9 Terms

1
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energy transferred is equal to what
work done
2
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work done equation
force x distance
3
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GPE equation
mass x gravitational field strength x change in height
4
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kinetic energy
1/2 x mass x velocity squared
5
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power definition
rate at which energy is transferred
6
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power
power = work done/time
7
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one watt is equal to what
joules per second
8
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efficiency
useful output/total energy input
9
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mechanical processes, how does it become wasteful?
friction between mechanical parts means that thermal energy is transferred and heat is dissipated into the surroudings