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1.7 Energy, work and power

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Question 61
a.

State the name of the nuclear process that releases energy inside the Sun.

[1]
b.

Describe the changes that happen to nuclei and mass during this solar reaction.

[2]
c.

Wind is an energy resource on Earth for which the Sun is the ultimate source.

Explain how the Sun's radiation causes wind on Earth, and state, with a reason, whether wind is a renewable resource.

[3]
d.

State two advantages and two disadvantages of using wind turbines to generate electricity.

[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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