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1.7 Energy, work and power

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Question 124

A forklift lifts 15 identical crates, each of mass 12 kg.

What other information is needed to calculate the useful work done in lifting the crates?

A

the vertical height through which the crates are lifted

B

the power rating of the forklift

C

the time taken to lift the crates

D

the volume of the crates

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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