Physics Crossword Puzzle

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Across
  1. 1. The bouncing back of a wave when it hits a surface.
  2. 4. The time it takes for one wave to pass a point.
  3. 8. The number of waves passing a point per second.
  4. 11. wave A wave in which the particles move perpendicular to the direction of the wave.
  5. 13. waves Waves that do not need a medium and can travel through a vacuum.
  6. 15. interference When waves combine to make a wave with larger amplitude.
  7. 17. The bending of a wave as it passes from one medium to another.
  8. 19. speed How fast a wave travels through a medium.
  9. 20. The maximum distance the particles of a medium move from their rest position.
Down
  1. 2. When two or more waves overlap and combine.
  2. 3. effect The change in frequency or pitch of a wave due to the movement of its source or receiver.
  3. 5. The spreading out of waves as they pass through an opening or around obstacles.
  4. 6. interference When waves combine to make a wave with smaller amplitude.
  5. 7. The material through which a wave travels.
  6. 9. length The distance between two corresponding parts of a wave.
  7. 10. wave A wave in which the particles move parallel to the direction of the wave.
  8. 12. waves Waves that require a medium to travel.
  9. 14. A disturbance that transfers energy from place to place.
  10. 16. The lowest point of a wave.
  11. 18. The highest point of a wave.