Acoustics and Resonance

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Across
  1. 1. decrease in amplitude
  2. 5. lowest point in a cycle; maximum point of rarefaction
  3. 9. a force that acts perpendicularly on a surface
  4. 15. amount of matter in an object
  5. 16. wave that is used to visually represent simple, harmonic motion or all the energy located at one frequency
  6. 18. a disturbance that creates changes in pressure throughout an elastic medium
  7. 19. multiple reflections (echo)
  8. 20. waves that were given their name due to the appearance that they are "stationary"
  9. 22. a disturbance of pressure that moves through a medium
  10. 23. type of vibration where one vibrating object will cause another object to start vibrating without touching
  11. 25. molecules move farther apart
  12. 27. the property of an object to return to its original shape
  13. 30. in motion, stays in motion; at rest, stays at rest
  14. 32. maximum upward displacement; maximum point of compression
  15. 33. number of cycles per second measured in Hertz
  16. 36. decrease of amplitude due to friction within the air
  17. 37. branch of physics concerned with the properties of sound
  18. 38. time it takes for one cycle to occur
  19. 39. some portion of the sound wave that is not transmitted or absorbed bounces from the surface of the boundary and travels in the opposite direction
  20. 40. vibration occurring from a point of rest, to maximum displacement, to rest, to maximum displacement, back to rest
  21. 41. unit that measures the intensity of a sound
Down
  1. 2. damping of a wave
  2. 3. waves where the displacement of the medium is parallel to the wave
  3. 4. sound passes through something
  4. 6. type of complex sound where two or more frequencies are not systematically related to each other
  5. 7. type of complex sound that consists of a series of frequencies that are systematically related to each other
  6. 8. molecules move close together
  7. 10. deals with space
  8. 11. type of vibration where an object vibrates as its own resonant or frequency
  9. 12. wave changes direction due to an obstacle
  10. 13. waves where the displacement of the medium is perpendicular to the wave
  11. 14. analysis that complex periodic waves can be represented by the sum of its component frequencies, as well as their amplitudes and phases
  12. 17. something that is set into vibration by the action of another vibration
  13. 21. the distance from crest to crest, trough to trough, or a point on one wave cycle to the corresponding point on the next wave cycle
  14. 24. influence that causes an object to undergo a change in speed, direction, or shape
  15. 26. the maximum displacement from position of rest; perception is loudness
  16. 28. deals with time
  17. 29. wave changes direction because of a local difference of temperature in the air
  18. 31. frequency at which an elastic system will vibrate if set into vibration and left alone
  19. 34. the quantity of three-dimensional space occupied by a liquid, solid, or gas
  20. 35. type of sound that is characterized by waves that consist of two or more frequencies