8dCosmology

Syllabus objectives

• 8.13describe the past evolution of the universe and the main arguments in favour of the Big Bang theorySeparate Physics only
• 8.14describe evidence that supports the Big Bang theory (red-shift and cosmic microwave background - CMB - radiation)Separate Physics only
• 8.15describe that if a wave source is moving relative to an observer, there will be a change in the observed frequency and wavelengthSeparate Physics only
• 8.16use the equation relating to change in wavelength, reference wavelength, velocity of a galaxy and the speed of light: light of speed galaxy a of velocity wavelength reference wavelength in change = c v==− λ Δλ λ λλSeparate Physics only
• 8.17describe the red-shift in light received from galaxies at different distances away from the EarthSeparate Physics only
• 8.18explain why the red-shift of galaxies provides evidence for the expansion of the universeSeparate Physics only