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1.7 Energy, work and power

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Question 58
a.

A wind turbine uses the movement of air to produce electrical energy. State the form of the energy possessed by the moving air.

[1]
b.

Some of the energy from the wind is not converted to electrical energy. Suggest two ways energy is wasted in the turbine and its generator.

[2]
c.

State two advantages and two disadvantages of using wind turbines, rather than coal-fired power stations, to produce electrical energy.

[4]
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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