Natalie Roberts Waves Second period

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Across
  1. 3. An empty space.
  2. 6. Sound wave in the range of 20,000 Hertz
  3. 7. Sending out ultrasound waves and interpreting the returning sound.
  4. 8. A complete wave or cycle per second.
  5. 9. The number of waves passing through a fixed point.
  6. 11. The "line" through the crest and trough of a wave.
  7. 14. The changing in perceived pitch that occurs when the source or the receiver of a sound is moving.
  8. 17. When two waves join together or cancel each other out through constructive or destructive_________
  9. 19. A wave that is produced by an object vibrating
  10. 20. Measurement of a sound waves intensity.
  11. 22. Instruments that use echolocation to locate objects.
  12. 23. The bending of a wave as it enters a new median.
  13. 26. a rapid back and forth motion.
Down
  1. 1. A wave that transfer energy through matter,
  2. 2. The distance from one crest to another
  3. 4. The acme of the wave
  4. 5. any substance that a wave moves through.
  5. 7. A disturbance that transfers energy through a field.
  6. 10. Bunch up part of a longitudinal wave.
  7. 12. The bouncing back of a wave after it hits a barrier.
  8. 13. The way the wave travels is at a right angle to the direction of the disturbance.
  9. 14. The spreading of a wave through a opening or around a obstacle.
  10. 15. The highness or lowness of a sound.
  11. 16. The way the wave travels and the direction of the disturbance are the same direction.
  12. 18. The strengthening of a sound wave by add more amplitude.
  13. 21. The lowest point of the wave
  14. 24. The amount of energy its sound wave has.
  15. 25. Disturbance that transfers energy from place to another.