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6.2 Stars and the Universe

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Question 63

Light from distant galaxies is redshifted when observed from Earth. This redshift provides vital evidence to support the Big Bang theory.

Which of the following statements is correct?

A

Light from galaxies that are moving away from Earth is blueshifted.

B

Redshift is a decrease in the frequency of electromagnetic radiation as its wavelength increases.

C

The Big Bang theory states that the Milky Way galaxy is at the center of the expanding Universe.

D

The further away a galaxy is from Earth, the smaller its redshift.

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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