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  3. Physics AQA

Physics

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  1. GCSE
  3. Physics AQA
  5. 1.2.2 Efficiency

1.2.2 Efficiency

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Revise AQA GCSE Physics 1.2.2 Efficiency with the question bank, lessons, revision guides, and flashcards.

The energy efficiency for any energy transfer can be calculated using the equation: efficiency = useful output energy transfer / total input energy transfer. • Efficiency may also be calculated using the equation: efficiency = useful power output / total power input. • Students may be required to calculate or use efficiency values as a decimal or as a percentage.

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