The Big Bang and Steady State theories are cosmological models of the origin of the Universe. Red-shift and Cosmic Microwave Background (CMB) radiation are two key experimental discoveries. Which of the following statements correctly links each piece of evidence to the theory or theories it supports?
Red-shift supports both the Big Bang and Steady State theories, whereas CMB radiation supports the Big Bang theory only.
Red-shift supports the Big Bang theory only, whereas CMB radiation supports both the Big Bang and Steady State theories.
Red-shift supports both the Big Bang and Steady State theories, whereas CMB radiation supports the Steady State theory only.
Red-shift supports the Steady State theory only, whereas CMB radiation supports the Big Bang theory only.
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.