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7.2 The Universe and red-shift

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Question 14

In the mid-20th century, cosmologists proposed two contrasting models to explain the large-scale structure and evolution of the Universe: the Big Bang theory and the Steady State theory.

State:

  • one shared observational evidence that is used to support both of these models.
  • one key distinction between how these two models describe the density of the Universe as it expands.
[2]
Markscheme

7.2 The Universe and red-shift Questions

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

53 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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