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7.2 The Universe and red-shift

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Question 4

The Big Bang theory is currently the most widely accepted scientific model for the origin and evolution of the Universe.

Explain how cosmological observations of red-shift and Cosmic Microwave Background Radiation (CMBR) provide evidence to support the ideas that:

  • the Universe is expanding
  • the Universe originated from a very hot, dense single point.
[6]
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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