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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Energy, work and power

Try the question first, then check the answer and practise the same topic again.

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4

Paper

2

Marks

Topic

Energy, work and power

Exam-style question

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Paper 4Theory (Extended)2 marks

Understanding the Sun's energy

Description

Nuclear Fusion in the Sun

The Sun's core is extremely hot and dense, allowing nuclear fusion to occur, which is the source of its energy.

  1. a

    Describe the role of nuclear fusion in the Sun's energy production.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 4 structured question: Energy, work and power

Paper 4Theory (Extended)3 marks

Description

Energy Production in the Sun

The Sun generates energy through a process that involves the fusion of hydrogen nuclei into helium, releasing energy in the form of light and heat.

  1. a

    Explain how energy is produced in the Sun.

    Aim for approximately 3 distinct marking points.

    [3]