Unit 1 energy equations Flashcards

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1
Q

Kinetic energy

A

1/2 x mass x speed2

Ek = 1/2 mv2

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2
Q

Gravitational Potential Energy

GPE

A

mass x gravitational field strength x height

Ep = mgh

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3
Q

Power

A

Work done/time taken

Or

Energy transferred/time taken

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4
Q

Efficiency

A

Useful energy output/total energy input

Useful power output/total power input

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