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IGCSE Physics > Efficiency > Flashcards

Efficiency Flashcards

1
Q

Definition of energy

A

The ratio of useful output work (energy) to total input work (energy)

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2
Q

Equation for Efficiency

A

useful output energy ÷ total input energy

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3
Q

Equation for useful power output

A

useful work done ÷ time taken
OR
Force x Speed

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4
Q

Unit for Efficiency

A

Watts

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5
Q
A
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IGCSE Physics (8 decks)

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