Other questions in this quiz

2. What is the blue shift?

  • it happens when an object moves closer to you
  • it happens when an object moves away from you
  • its when the colour blue moves
  • its when sound stops

3. The atmosphere ____ radio waves that carry signals from local radio stations. This is why the signals cannot be received far away from the transmitter

  • retracts
  • escapes
  • absorbs
  • reflects

4. What direction is the blue shift?

  • Left
  • Down
  • Right
  • Up

5. Micro-waves can:

  • Cause internal tissue heating
  • damage skin cells and cause burns
  • cause cancer
  • cause blindness

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