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6.2 Stars and the Universe

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Question 49

Light from some celestial bodies is blueshifted.

What is blueshift?

A

an increase in observed wavelength caused by an object moving towards the Earth

B

a decrease in observed wavelength caused by an object moving towards the Earth

C

an increase in observed wavelength caused by an object moving away from the Earth

D

a decrease in observed wavelength caused by an object moving away from the Earth

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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