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8.3 Power and efficiency

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Question 8

A conveyor system receives 3.0 kJ of energy and transfers 2250 J usefully.

Calculate the percentage of the energy supplied that is transferred in unwanted ways.

[3]
Markscheme

8.3 Power and efficiency Questions

  1. GCSE
  2. /Physics
  3. /8.3 Power and efficiency

128 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency, covering 8.3.1 Power and 8.3.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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