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1.7 Energy, work and power

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Question 403

A forklift is used to lift crates of identical mass from the floor onto a high rack.

Which of the following quantities does not affect the total work done against gravity by the forklift?

A

The height of the rack above the floor

B

The number of crates lifted

C

The time taken to lift the crates

D

The mass of each crate

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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