GCSE Physics – Red and blue shift

Last updated: 14/05/2020
AQA GCSE Science – Physics foundation Space physics GCSE Physics – Red and blue shift

Learning Objectives

-I can describe how red and blue shift occurs
-I can explain what red and blue shift show
-I can explain how red shift and cosmic microwave background radiation provides evidence for the Big Bang

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  1. Current
  2. Review
  3. Answered

  1. What was the first theory on the origin of the Universe?

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  2. What did the Steady State Theory suggest?

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  3. How is light from distant galaxies shifted?

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  4. What are absorption spectra?

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  5. What do scientists do with absorption spectra?

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  6. What does each element produce on an absorption spectra?

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  7. What is the name of light from distant galaxies being more red?

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  8. What does red-shift show?

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  9. What does red-shift of most galaxies show us?

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  10. If light from a galaxy is red shifted, what is happening?

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  11. How can we measure red-shift?

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  12. Two galaxies are moving away from Earth, with galaxy A moving more quickly than B. What happens to their light?

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  13. More distance galaxies have a greater red-shift than nearer ones. What does this show?

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  14. As more distant galaxies are moving faster than nearer ones, what does this suggest?

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  15. What is the blue-shift?

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  16. What does the blue-shift show?

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  17. What is CMBR?

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  18. What does CMBR stand for?

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  19. What is CMBR evidence for?

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  20. Why is CMBR evidence for the Big Bang Theory?

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  21. Which theory is believed about the origin of the Universe at the moment?

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  22. What is the current theory on the origin on the Universe?

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  23. What does the Big Bang Theory state?

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  24. What do we still not understand about the universe?

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  25. Give a piece of evidence for both the Steady State Theory and the Big Bang Theory.

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