Powerpoint lecture covering the following in a modern, concise format:
Specification Point 8.11P - Understand how the brightness of a star at a standard distance can be represented using absolute magnitude.
Specification Point 8.12P - Draw the main components of the Hertzsprung–Russell diagram.
Specification Point 8.13P - Describe the past evolution of the universe and the main arguments in favour of the Big Bang theory.
Specification Point 8.14P - Describe evidence that supports the Big Bang theory.
Specification Point 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.
Specification Point 8.16P - Use the equation relating to change in wavelength, reference wavelength, velocity of a galaxy and the speed of light.
Specification Point 8.17P - Describe the red-shift in light received from galaxies at different distances away from the Earth.
Specification Point 8.18P - Explain why the red-shift of galaxies provides evidence for the expansion of the universe.
Complete set of Chapter 8 Lectures are available.
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