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7.2 The Universe and red-shift

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Question 24
F

A student writes an explanation using three statements.

P: Distances between widely separated galaxies are increasing. Q: Light from most distant galaxies has a longer wavelength than expected. R: Most distant galaxies are moving away from us.

Which order links the observation to the conclusion that the Universe is expanding?

[1]
A

P, Q, R

B

R, P, Q

C

Q, R, P

D

Q, P, R

Markscheme

7.2 The Universe and red-shift Questions

  1. GCSE
  2. /Physics
  3. /7.2 The Universe and red-shift

94 exam-style questions on Edexcel GCSE Physics 7.2 The Universe and red-shift, covering 7.2.1 Big Bang and Steady State theories, 7.2.2 Evidence for the Big Bang, 7.2.3 The Doppler effect and red-shift, 7.2.4 Red-shift as evidence for an expanding Universe, and 7.2.5 The CMB and the accepted model. Each one has a worked solution and a mark scheme showing where the marks go.

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