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.

At a glance

Paper

Marks

Topic

Energy, work and power

Exam-style question

Try this first

Paper 4Theory (Extended)3 marks

Energy production in stars

Description

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.

a
Explain how energy is produced in the Sun.
Your answer
Aim for approximately 3 distinct marking points.
[3]

0 of 1 part answered

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Paper 4Theory (Extended)2 marks

Description

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

a
Describe the role of nuclear fusion in the Sun's energy production.
Your answer
Aim for approximately 2 distinct marking points.
[2]