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3.2 Dissipation and efficiency

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Question 12

During one sorting cycle, a parcel conveyor transfers 490 J of energy usefully and dissipates 210 J.

What is the efficiency of the conveyor during the cycle?

[1]
A

43%43\%43%

B

57%57\%57%

C

70%70\%70%

D

30%30\%30%

Markscheme

3.2 Dissipation and efficiency Questions

  1. GCSE
  2. /Physics
  3. /3.2 Dissipation and efficiency

100 exam-style questions on Edexcel GCSE Physics 3.2 Dissipation and efficiency, covering 3.2.1 Dissipation of energy, 3.2.2 Reducing unwanted energy transfers, 3.2.3 Efficiency, and 3.2.4 Increasing efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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