Back to quiz

6. Complete this: The narrower the gap, the ____

  • more the waves spread out
  • longer the waves
  • less the waves spread out
  • shorter the waves

7. A musical note with a high frequency sounds ______ than one with a low frequency

  • quieter
  • louder
  • higher
  • lower

8. How does the red shitf support the theory of the Big Bang?

  • Shows us the universe is moving away (so it's expanding)
  • i'm not sure
  • shows us the universe is moving in, meaning it's getting smaller
  • Shows us that the colour red in the universe is shifting

9. Ultra Violet can:

  • Harm the eyes and skin
  • cause blindness
  • Cause cancer
  • Internal tissue heating

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

  • ---
  • light
  • Radio
  • microwave

11. Which waveband has the shorter range?

  • ---
  • UHF
  • LF
  • ---

12. Which waveband carries more information?

  • HF
  • VF
  • ---
  • ---

13. What is the red shift?

  • It happens when an object moves away from you
  • It happens when an object moves closer to you
  • its when the colour red shifts
  • it's when sound stops

14. which of the following gives a use of gamma rays?

  • to see objects
  • to kill cancer cells
  • to communicate with satellites
  • to protect us

15. A noise of a small amplitude sounds _____ than one with a large amplitude

  • higher
  • lower
  • quieter
  • louder

16. Micro-waves can:

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

17. What direction is the blue shift?

  • Left
  • Right
  • Up
  • Down

18. Visible light can:

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

19. How do you work out wavelength?

  • Speed / frequency (divided)
  • Speed X frequency
  • Speed - frequency
  • Speed + frequency

20. What direction is the red shift?

  • Down
  • Right
  • Up
  • Left