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1.7.1a Energy stores and energy transfers

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Question 179

Four groups of students measure the efficiency of different mechanical pumps. One of the groups has made a calculation error, resulting in an impossible value for efficiency.

Which group's value is not possible?

A

Group 1 (35%35\%35%)

B

Group 2 (72%72\%72%)

C

Group 3 (94%94\%94%)

D

Group 4 (108%108\%108%)

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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