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7.2 The Universe and red-shift

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Question 39
F

An ambulance sounds a siren at a constant frequency as it passes a stationary observer.

Which describes the sound heard just before and just after it passes?

[1]
A

Higher frequency before; lower frequency after

B

Lower frequency before; higher frequency after

C

Higher frequency before; higher frequency after

D

Lower frequency before; lower frequency after

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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