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Across
  1. 3. the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water or any other liquid or solid matter) as it propagates away from the source of the sound
  2. 5. the highest point of a wave
  3. 6. the area of a wave (or Slinky) that is spread out
  4. 11. waves interact with each other
  5. 12. Refraction is the bending of light as it moves from one medium to another
  6. 13. describes what happens when two or more waves overlap and interact
  7. 14. how high or low a sound appears to a listener
  8. 15. the phenomenon where light or other waves bounce back from a surface
  9. 17. how often something repeats within a given time period, usually one second
  10. 18. the distance of one complete cycle
  11. 19. its position when it is stationary or not moving
  12. 20. the range of all types of electromagnetic radiation,
Down
  1. 1. the measurement of maximum displacement
  2. 2. the bending of light around an obstacle or through a gap
  3. 4. the change in frequency (and thus pitch for sound) of a wave when the source of the wave and the observer are in relative motion.
  4. 7. waves where the displacement of the medium is in the same direction as the direction of the travelling wave
  5. 8. a wave that is an oscillation of matter and is responsible for the transfer of energy through a medium.
  6. 9. the lowest point of a wave
  7. 10. the time it takes for the object to complete one full cycle or oscillation, returning to its initial position
  8. 16. the action of squeezing or reducing the volume of something by applying inward forces
  9. 18. a transfer of energy through a medium from one point to another.