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1.2 Conservation and dissipation of energy

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Question 21

An electric pump moves water into a storage tank.

QuantityValue
Energy transferred usefully to the water8.4 kJ
Efficiency of the pump0.70

Calculate the energy supplied to the pump.

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Markscheme

1.2 Conservation and dissipation of energy Questions

  1. GCSE
  2. /Physics
  3. /1.2 Conservation and dissipation of energy

104 exam-style questions on AQA GCSE Physics 1.2 Conservation and dissipation of energy, covering 1.2.1 Energy transfers in a system and 1.2.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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