Physical science block 4

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Across
  1. 1. something a wave travels through
  2. 3. The bouncing back of a wave when it cant pass through an object
  3. 5. the lowest point of a wave
  4. 6. the certain motion of the medium to the wave
  5. 7. the highest point of a wave
  6. 10. effect the change of frequency depending on where it is.
  7. 12. when two waves combine and make a smaller amplitude
  8. 13. waves that need a medium to travel
  9. 14. The bending of a wave when they move around an object or pass through an opening
  10. 16. Maximum distance between a wave
  11. 17. the number of waves that pass through a point in a certain amount of time
  12. 18. the distance between two parts of a wave
Down
  1. 2. the interaction between two meeting waves
  2. 4. when two waves combine and make a larger amplitude
  3. 8. waves that don't need a medium to travel
  4. 9. the time it takes two c rests to pass a point
  5. 11. the bending of a wave when they enter a medium
  6. 15. A wave that appears to stand still, but is actually two waves passing through eachother