Waves and the universe

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1. What is the blue shift?

  • it happens when an object moves closer to you
  • its when sound stops
  • it happens when an object moves away from you
  • its when the colour blue moves
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Other questions in this quiz

2. what is diffraction?

  • i don't know
  • The spreading of waves when they pass through a gap or past an object
  • When you look in the mirror
  • The breaking up of light

3. Gamma rays can:

  • Cause cancer
  • harm the eyes and skin
  • cause blindess
  • internal tissue heating

4. What direction is the red shift?

  • Down
  • Left
  • Right
  • Up

5. Which one of the following types of electromagnetic wave is used to carry information between masts in a mobile phone network?

  • Radio
  • ---
  • light
  • microwave


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