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8.2 Red-shift

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Question 14

Astronomers use red-shift measurements to find the recession speeds of two distant galaxies. Galaxy X is moving away from the Earth at 3000 km/s. Galaxy Y is moving away from the Earth at 15 000 km/s.

What do these measurements suggest about the two galaxies?

[1]
A

Galaxy X is further from the Earth than galaxy Y

B

Galaxy X has a bigger red-shift than galaxy Y

C

Galaxy Y is further from the Earth than galaxy X

D

Both galaxies are the same distance from the Earth

Markscheme

8.2 Red-shift Questions

  1. GCSE
  2. /Physics
  3. /8.2 Red-shift

79 exam-style questions on AQA GCSE Physics 8.2 Red-shift, covering 8.2 Red-shift. Each one has a worked solution and a mark scheme showing where the marks go.

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