Most galaxies are moving away from the Earth - AQA - GCSE Physics - Question 2 - 2019 - Paper 1
Question 2
Most galaxies are moving away from the Earth. Scientists can determine the speed of a galaxy by observing the light from the galaxy.
Complete the sentence.
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Worked Solution & Example Answer:Most galaxies are moving away from the Earth - AQA - GCSE Physics - Question 2 - 2019 - Paper 1
Step 1
Complete the sentence.
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Answer
When scientists observe the light from distant galaxies, they observe an increase in the wavelength of light from those galaxies.
Step 2
Which galaxy is moving the fastest away from the Earth?
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Answer
C
Step 3
Which galaxy is the furthest away from the Earth?
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Answer
C
Step 4
How does the Big Bang theory describe the universe when it began?
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Answer
The Big Bang theory describes the universe as very dense and extremely hot when it began.
Step 5
Which statement about the Big Bang theory is correct?
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Answer
Scientific evidence supports the theory.
Step 6
Which graph would the Big Bang theory suggest is correct?
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