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1.7 Energy, work and power

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Question 215

A winch lifts several equal-weight buckets of concrete from the ground to the scaffolding of a construction site.

Which of the following quantities does not affect the total work done by the winch?

A

the height of the scaffolding above the ground

B

the total number of buckets lifted

C

the time taken to lift the buckets

D

the weight of each bucket

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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