# Energy equations

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- Created by: Sophie
- Created on: 06-04-14 17:47

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- Energy Equations
- work done = energy transferred
- W = E

- gravitational potential energy = mass x gravitational field strength x height
- GPE = mgh

- power = energy/time
- P = E/t

- efficiency (%) = (useful energy out/total energy in) x 100
- work done = force x distance
- W =Fd

- kinetic energy = 1/2 x mass x velocity^2
- KE = 1/2mv^2

- energy = specific heat capacity x mass x change in temperature
- E = cm(theta)

- Waves
- frequency = 1/t
- velocity(wave speed) = frequency x wavelength
- v = f?

- work done = energy transferred

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