Waves and EM spectrum

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Across
  1. 2. the maximum distance the wave moves from its rest position
  2. 7. the wave used in TV remotes
  3. 9. the wave with the longest wavelength in the EM spectrum
  4. 12. the range of electromagnetic radiation/waves
  5. 15. the distance a wave travels in a given amount of time
  6. 16. a disturbance that transfers energy from one place to another but not matter
  7. 18. the lowest point in a transverse wave
  8. 19. when particles in a longitudinal wave a farthest apart
  9. 20. the number of wavelengths that pass a certain point per second
Down
  1. 1. the highest point in a transverse wave
  2. 3. the wave that causes sunburns
  3. 4. when particles in a longitudinal wave are closest together
  4. 5. waves that are helpful in communication
  5. 6. waves that can penetrate soft tissue, like skin and muscles
  6. 8. a wave that can only travel through matter
  7. 10. the only EM wave we can see
  8. 11. the shortest waves on the EM spectrum, often used in medical treatment
  9. 13. distance from one point on a wave to another
  10. 14. a wave in which the disturbance is perpendicular to the direction the wave travels
  11. 17. a wave that makes particles in a medium move parallel to the direction of the waves