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1.2.2 Efficiency

Card 1 of 24

What does the efficiency of a device indicate?

A

Watts, W\text{W}W.

B

To increase efficiency, reduce unwanted energy transfers.

C

How much of the input energy is transferred usefully.

D
  • It reduces unwanted thermal transfer to the surroundings.
  • More energy remains available for the useful heating transfer.

Card 1 of 24

1.2.2 Efficiency Flashcards

  1. GCSE
  2. /Physics
  3. /1.2.2 Efficiency

24 flashcards on AQA GCSE Physics 1.2.2 Efficiency: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2.

Flashcards