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The Big Bang theory is one theory for the origin of the Universe - Edexcel - GCSE Physics - Question 10 - 2021 - Paper 1
Question 10
The Big Bang theory is one theory for the origin of the Universe. The Big Bang theory suggests: - the Universe had a beginning - the Universe is still expanding. (... show full transcript
Worked Solution & Example Answer:The Big Bang theory is one theory for the origin of the Universe - Edexcel - GCSE Physics - Question 10 - 2021 - Paper 1
Step 1
Which of these provides evidence that the Universe had a beginning?
Answer
The correct answer is D: the discovery of cosmic microwave background (CMB) radiation. This radiation is considered strong evidence of the Big Bang because it represents the afterglow of the initial explosion, suggesting that the Universe indeed had a beginning.