SOUNDS

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Across
  1. 3. The application of acoustics into technology
  2. 7. A condition that affects the speed of sound
  3. 9. A wave that is an oscillation of matter and is responsible for the transfer of energy through a medium
  4. 11. Sound wave consists of vibrating particles
  5. 12. A force that squeezes something together
  6. 15. Waves where the displacement of the medium is in the same direction as the direction of the travelling wave
Down
  1. 1. The study of sound
  2. 2. The distance between two successive crests or troughs of a wave
  3. 4. One of the factor affects sound that able to endure strain without being permanently injured
  4. 5. A decrease in the density of something
  5. 6. Another factor affects sound that describe the mass of a substance per unit volume
  6. 8. Any sound waves with frequencies greater than 20kHz
  7. 10. A medium where sound travels more quickly
  8. 13. A substance in which sound waves travel
  9. 14. A type of energy made by vibrations