Electromagnetic spectrum GCSE Physics

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Across
  1. 4. Ioninsing radiation that isn't X rays
  2. 5. type of current made when radiowaves are absorbed by a receiver aerial
  3. 6. units of frequency
  4. 8. Colour of visible light with 3rd longest wavelength
  5. 9. TVs use this radiation
  6. 10. mobile phones use this radiation in communication
  7. 12. Thin glass cable used to communicate with visible light
  8. 14. microwaves pass through this layer of the atomosphere to reach satellites
  9. 16. microbes killed by gamma rays when surgical equipment is sterilised ster
  10. 19. oscillations of these particles can create radiowaves
  11. 22. all EM waves travel the same ...
Down
  1. 1. opposite of longitudinal
  2. 2. these molecules in food absorb microwaves and heat up the food
  3. 3. Radiation can cause skin cancer
  4. 7. this colour surface readily emits and absorbs IR radiation
  5. 11. This type of radiation (from 2 EM waves) can mutate DNA
  6. 13. long wave radio waves do this as they bend around the earth
  7. 14. Longer wavelength than visible light and used in thermal imaging
  8. 15. Number of waves that pass a point in one second
  9. 17. Xrays are ... by bone
  10. 18. cube with 4 different surfaces used to investigate IR emission
  11. 20. Too much exposure to Xrays can cause this disease
  12. 21. Smallest interval a measuring instrument can measure