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1.7.1a Energy stores and energy transfers

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Question 159
a.

Use terms from the list below to complete the sentences about work, energy, and power.

  • force applied
  • distance moved in the direction of the force
  • acceleration of the object
  • kinetic energy gained
  • time taken

A crane lifts a heavy shipping container vertically. In order to calculate the work done on the container, it is necessary to know the ____________________ and the ____________________.

To determine the average power developed, it is also necessary to know the ____________________.

[3]
b.

The electric motor of the crane actually consumes more electrical energy than the useful work done on the container. Explain why this is the case.

[2]
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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