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6.2 Stars and the Universe

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Question 25
a.

Name the galaxy to which our solar system belongs.

[1]
b.

State the main scientific theory for the origin of the universe which is supported by the cosmic microwave background radiation (CMBR).

[1]
c.

CMBR is detected coming from all directions in space.

At which stage in the history of the universe was this radiation produced?

[1]
d.

Explain how the expansion of space has affected the wavelength and frequency of this radiation since it was first emitted.

[2]
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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