Waves

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Across
  1. 3. This color filter transmits green and blue while absorbing red
  2. 4. The bending of light due to a change in speed
  3. 5. A type of electromagnetic wave used to heat food
  4. 6. A type of electromagnetic wave with wavelength slightly larger than red
  5. 9. The highest part of the wave
  6. 10. The height of the wave
  7. 12. Empty space
  8. 14. The length of one full wave
  9. 18. A wave that moves through some type of matter
  10. 21. A change in frequency that is perceived when the source of a wave is moving
Down
  1. 1. A wave that travels in the same direction as the vibrations from the source of motion
  2. 2. The energy of the wave is transferred to the material it encounters
  3. 7. A wave that transfers electromagnetic energy
  4. 8. A type of electromagnetic wave with wavelength slightly smaller than violet
  5. 11. A wave that travels perpendicular to the source of motion
  6. 13. Greek letter that represents wavelength
  7. 14. Any disturbance that transfers energy from place to place
  8. 15. The lowest part of the wave
  9. 16. A wave bounces off of an object and heads in a different direction
  10. 17. Plants appear green because they absorb red and...
  11. 19. The standard unit of measurement for frequency
  12. 20. The amount of time it takes for one full wave to pass through a given point