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 thermal conduction
An electric whisk in a bakery has two motors, each with an average power of 1500W. The whisk is used for 4 hours each day, 7 days a week. Electricity costs 18p per kilowatt-hour. Calculate the cost of the electricity used by the whisk in one week.
Explain how an electromagnetic motor works?
When should you use the SUVAT equations?