Light and Waves

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Across
  1. 3. a piece of equipment used to disperse light
  2. 6. the wave changes direction when moving from one material to another
  3. 7. a material or substance which reflects some wavelengths of light and absorbs others, giving a unique colour
  4. 10. the type of energy light is, both visible and invisible
  5. 13. a piece of equipment used to focus light
  6. 14. the EM radiation that your eyes can detect
  7. 17. the EM radiation with the longest wavelength
  8. 18. the energy from the wave is transferred into the material
Down
  1. 1. the waves bounce off an uneven surface in different directions
  2. 2. the number of waves travelling past a point in one second
  3. 4. the distance between the crest of one wave and the crest of the next wave
  4. 5. the colour produced when all colours of light are combined
  5. 8. wave passes through a material
  6. 9. the EM radiation with the shortest wavelength
  7. 11. the wave bounces off a surface of an object
  8. 12. a wave of white light is separated into its different colours
  9. 15. a piece of equipment used to reflect light
  10. 16. the colour produced when all colours of pigment are combined