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6.2.3a Galaxies and the scale of the Universe

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Question 13
a.

The Sun is a star positioned at the center of our Solar System.

State the name of the force that keeps the planets in orbit around the Sun.

[1]
b.

State what is meant by the term galaxy.

[1]
c.

State the meaning of the term redshift.

[1]
d.

Describe how observations of redshift of light from distant galaxies provide evidence that the Universe is expanding.

[4]
Markscheme

6.2.3a Galaxies and the scale of the Universe Questions

  1. IGCSE
  2. /Physics
  3. /6.2.3a Galaxies and the scale of the Universe

59 exam-style questions on CIE IGCSE Physics 6.2.3a Galaxies and the scale of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.

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