Aims… (Triple Only)
8.13P describe the past evolution of the universe and the main arguments in favour of the Big Bang
8.14P describe evidence that supports the Big Bang theory (red-shift and cosmic microwave background (CMB) radiation)
8.15P describe that if a wave source is moving relative to an observer there will be a change in the observed frequency and wavelength
8.16P use the equation relating change in wavelength, wavelength, velocity of a galaxy and the speed of light:
Change in wavelength/reference wavelength = velocity of a galaxy/speed of light
8.17P describe the red-shift in light received from galaxies at different distances away from the Earth
8.18P explain why the red-shift of galaxies provides evidence for the expansion of the Universe.
Resources…
- 8 Astrophysics Part D Cosmology
- Finding the Hubble Constant
- GCSE Notes Extended Reading Red shift
- Hubble Constant Graph
- Dark Energy Extended Reading Task
Video Clips…
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