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The expanding universe and the Big Bang

11th grade (Year 12 in England) · 16 questions · Common Core: NGSS.HS-ESS1-2 · England: KS4 Physics: Space physics (separate science)

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Score/ 16

Question 1
A spectral line normally at 500 nm is observed at 525 nm in light from a galaxy. By how many nanometres has it been red-shifted?
Answernm
2
Question 2
What is red-shift?
- A. light becoming bluer
- B. light from distant galaxies is stretched to longer wavelengths
- C. galaxies turning red because they are hot
- D. the Sun setting
3
Question 3
The Big Bang: which statement is true?
- A. Red-shift means galaxies are moving towards us.
- B. Galaxies further away are generally moving away faster.
- C. The Earth is the centre of the universe.
- D. The Big Bang was an explosion at one point in an existing empty space.
Question 4
A spectral line normally at 500 nm is observed at 505 nm in light from a galaxy. By how many nanometres has it been red-shifted?
Answernm
5
Question 5
More distant galaxies show greater red-shift. What does this suggest?
- A. The universe is shrinking
- B. Light slows down over time
- C. Galaxies are standing still
- D. The universe is expanding
6
Question 6
The Big Bang: which statement is true?
- A. The cosmic microwave background is evidence for the Big Bang.
- B. Red-shift means galaxies are moving towards us.
- C. The Big Bang was an explosion at one point in an existing empty space.
- D. The Earth is the centre of the universe.
Question 7
A spectral line normally at 600 nm is observed at 660 nm in light from a galaxy. By how many nanometres has it been red-shifted?
Answernm
8
Question 8
More distant galaxies show greater red-shift. What does this suggest?
- A. The universe is expanding
- B. Light slows down over time
- C. The universe is shrinking
- D. Galaxies are standing still
9
Question 9
The Big Bang: which statement is true?
- A. The Earth is the centre of the universe.
- B. Red-shift means galaxies are moving towards us.
- C. The Big Bang was an explosion at one point in an existing empty space.
- D. Red-shift is evidence that the universe is expanding.
Question 10
A spectral line normally at 400 nm is observed at 404 nm in light from a galaxy. By how many nanometres has it been red-shifted?
Answernm
11
Question 11
What is red-shift?
- A. light becoming bluer
- B. light from distant galaxies is stretched to longer wavelengths
- C. galaxies turning red because they are hot
- D. the Sun setting
12
Question 12
The Big Bang: which statement is true?
- A. The Earth is the centre of the universe.
- B. The cosmic microwave background is evidence for the Big Bang.
- C. The Big Bang was an explosion at one point in an existing empty space.
- D. Red-shift means galaxies are moving towards us.
Question 13
A spectral line normally at 500 nm is observed at 505 nm in light from a galaxy. By how many nanometres has it been red-shifted?
Answernm
14
Question 14
About how old is the universe?
- A. about 13.8 billion years
- B. about 6000 years
- C. about 4.6 billion years
- D. it has always existed
15
Question 15
The Big Bang: which statement is true?
- A. The Earth is the centre of the universe.
- B. The universe is about 13.8 billion years old.
- C. Red-shift means galaxies are moving towards us.
- D. The Big Bang was an explosion at one point in an existing empty space.
Question 16
A spectral line normally at 600 nm is observed at 660 nm in light from a galaxy. By how many nanometres has it been red-shifted?
Answernm

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