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7.2 The Universe and red-shift

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Question 16
F

The table shows the observed wavelength of the same spectral line from three galaxies. Its laboratory wavelength is 500 nm500\ \mathrm{nm}500 nm.

GalaxyObserved wavelength in nm
P510
Q490
R525

Which identifies a galaxy moving towards the Earth and the galaxy moving away fastest?

[1]
A

Towards: P; away fastest: Q

B

Towards: Q; away fastest: P

C

Towards: R; away fastest: P

D

Towards: Q; away fastest: 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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