Sound Vocabulary

Edit Answers
1234567891011121314151617181920
Across
  1. 2. the application of inward forces (pressure) that cause an object or substance to become compacted or reduced in size.
  2. 3. the frequency at which it vibrates when disturbed from its equilibrium position, in the absence of external forces.
  3. 6. areas where the particles of the medium are spread out, resulting in regions of lower density and pressure.
  4. 8. (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power
  5. 9. occurs when waves come together so that they completely cancel each other out.
  6. 14. when two waves overlap in such a way that they combine to create a larger wave.
  7. 16. also ask.
  8. 18. a point along a standing wave where the wave has minimum amplitude.
  9. 19. wave combination of two waves moving in opposite directions, each having the same amplitude and frequency.
  10. 20. flight at five times or more the speed of sound (Mach 5 or higher.)
Down
  1. 1. relating to or denoting sound waves with a frequency below the lower limit of human audibility.
  2. 4. a wave or signal whose frequency is a positive integer multiple of the fundamental frequency of a periodic signal.
  3. 5. a property of sound that we perceive, not a physical property itself.
  4. 7. When two or more waves cross at a point, the displacement at that point is equal to the sum of the displacements of the individual waves.
  5. 10. vibrations of frequencies greater than the upper limit of the audible range for humans.
  6. 11. the ratio of flow velocity after a certain limit of the sound's speed.
  7. 12. the increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move towards (or away from) each other.
  8. 13. The periodic and reapeating fluctuation heard in the intensity of a sound.
  9. 15. a type of vibration where an external, periodic force (or driving force) is applied to a system, causing it to oscillate.
  10. 17. Every object or system has a natural frequency at which it vibrates most easily. This is the frequency at which the system will oscillate if disturbed.