Cambridge IGCSE Physics practice

Paper 3 structured question: The Universe

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

At a glance

Paper

Marks

Topic

The Universe

Exam-style question

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Paper 3Theory (Core)3 marks

The redshift of light from galaxies is measured.

Description

Astronomers measure the redshift of light from various galaxies to understand their movement and the expansion of the Universe.

a
State how redshift supports the Big Bang Theory.
Your answer
Aim for approximately 2 distinct marking points.
[2]
b
Identify the relationship between redshift and distance of galaxies.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)1 marks

Description

Astronomers have observed that the light from distant galaxies is redshifted, indicating they are moving away from us.

a
State the significance of redshift in relation to the Universe.
Your answer
Aim for approximately 1 distinct marking point.
[1]