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6.2 Stars and the Universe

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Question 68

Which statement about the expansion of the Universe and redshift is correct?

A

Redshift describes a decrease in the wavelength of light from receding galaxies.

B

Light from distant galaxies is redshifted, suggesting that the Universe is expanding.

C

Galaxies that are further away from us show a smaller redshift than closer galaxies.

D

The cosmic microwave background radiation (CMBR) is evidence that the Universe is contracting.

Markscheme

6.2 Stars and the Universe Questions

  1. IGCSE
  2. /Physics
  3. /6.2 Stars and the Universe

104 exam-style questions on CIE IGCSE Physics 6.2 Stars and the Universe, covering 6.2.1 The Sun as a star, 6.2.2a Galaxies and astronomical distances, 6.2.2b The life cycle of a star, 6.2.3a Galaxies and the scale of the Universe, 6.2.3b Redshift, 6.2.3c The Big Bang Theory and cosmic microwave background radiation, and 6.2.3d The Hubble constant and the age of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.

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