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6. Which bit of the electromagnetic spectrum has the third shortest wavelength?

  • gamma waves
  • ultraviolet light
  • infa-red waves
  • radio waves

7. Which bit of the electromagnetic spectrum has the fourth shortest wavelength?

  • visible light
  • x-rays
  • microwaves

8. Which bit of the electromagnetic spectrum has the fifth shortest wavelength?

  • The electromagnetic spectrum doesn
  • radio waves
  • infa-red waves
  • gamma rays
  • ultraviolet light

9. Which bit of the electromagnetic spectrum has the sixth shortest wavelength?

  • visible light
  • The electromagnetic spectrum doesn
  • microwaves
  • x-rays

10. Which bit of the electromagnetic spectrum has the seventh shortest wavelength?

  • ultraviolet light
  • gamma rays
  • The electromagnetic spectrum doesn
  • radio waves
  • infa-red light

11. Which bit of the electromagnetic spectrum has the eighth shortest wavelength?

  • visible light
  • The electromagnetic spectrum does not go up that high.
  • x-rays
  • microwaves

12. How many parts are there to the electromagnetic spectrum?

  • 6
  • 7
  • 9
  • 8
  • 10

13. What is the speed of the electromagnetic waves?

  • 3,000million m/s
  • 3million m/s
  • 30,000million m/s
  • 300million m/s
  • 30million m/s

14. Wave Speed =

  • wavelength x frequency
  • frequency/wavelength
  • wavelength/frequency

15. Which of these is a use for Gamma rays?

  • sterilizing surgical instruments
  • producing shadow pictures of bones

16. Which of these is a use for x-rays?

  • producing shadow pictures of bones
  • sterilizing surgical instruments

17. Which of these is true for BOTH x-rays and gamma rays?

  • causes and is used to treat cancer
  • is used to keep food fresh for longer by killing the bacteria

18. X-rays can pass through flesh and blood, but not bone.

  • True
  • False

19. How do Gamma rays sterilize?

  • They kill bavteria
  • They provide a protective layer around the object

20. UV radiation can harm...

  • skin and eyes
  • teeth
  • skin and teeth
  • skin
  • eyes