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1.7.1a Energy stores and energy transfers

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Question 74

An electric winch uses 1500 J of electrical energy. It provides 600 J of useful output energy in lifting a load. What is the efficiency of the winch?

A

4.0%4.0\%4.0%

B

40%40\%40%

C

60%60\%60%

D

90%90\%90%

Markscheme

1.7.1a Energy stores and energy transfers Questions

  1. IGCSE
  2. /Physics
  3. /1.7.1a Energy stores and energy transfers

229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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