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1.7 Energy, work and power

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Question 319

Alice uses a force of 40 N to pull a cart 5.0 m along a track.

Bob uses a force of 25 N to pull another cart 3.0 m along the track.

Which statement gives a full explanation why Alice does more work than Bob?

A

Alice pulls her cart with a greater force than Bob.

B

Alice pulls her cart a greater distance than Bob.

C

Alice pulls her cart a greater distance and with a greater force than Bob.

D

Alice pulls a heavier cart than Bob.

Markscheme

1.7 Energy, work and power Questions

  1. IGCSE
  2. /Physics
  3. /1.7 Energy, work and power

533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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