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1.7.1a Energy stores and energy transfers

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Question 34

An electric winch is used to lift a package.

a.

The weight of the package is 25 N25\text{ N}25 N. The package is raised vertically through a distance of 1.6 m1.6\text{ m}1.6 m.

Calculate the work done on the package.

[2]
b.

Describe one way in which energy is wasted by the electric winch as it lifts the package.

[1]
c.

A wind turbine generates electrical power using the energy of wind.

Describe how a wind turbine generates electrical power from the wind.

[3]
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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