Describe what red shift is and why i provides evidence for the Big Bang Theory.
Red-shift is the increase in wavelength emitted from distant objects moving away from the observer, making them appear more red.The Big Bang Theory states that the universe began from a singularity which then expanded, meaning objects are moving away from each other, leading to red-shift.
RD
Related Physics GCSE answers
All answers ▸Describe how the forces change on a parachutist while they fall.
Why can heat only be transferred through a vacuum by radiation, and not conduction or convection? (3)
Explain the difference between a battery and a cell
Draw a graph depicting a skydivers speed against time when jumping from a plane, until he deploys his parachute, explaining the logic of your answer through the forces applicable to the body.