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45 Multiple choice questions

  1. "Angle of incidence= Angle of reflection"
  2. the effect of 2 waves passing each other as described by the principle of Superposition
  3. compares the intensity to the softest sound or "threshhold of hearing"
  4. whole number multiples of the fundamental frequency
  5. range of frequencies below 20Hz
  6. when a wave strikes a rigid barrier, it reflects inverted. When it strikes a non-reigid barrier, it reflects upright
  7. substance that the wave is passing through
  8. subjective perception of intensity
  9. the waves partly or completely cancel as they pass
  10. particles on the wave vibrate perpindicular to the direction that the wave is going
  11. for the frequency produced by a vibrating string: the frequency is directly proportional to the tension and the frequency is inversely proportional to the string's density, diameter, and length
  12. how easily or difficultly a wave can be launched in a medium
  13. harmonics are the whole number multiples of this
  14. sound travels fastest in solids, slower in liquids, slowest in gases and it doesn't travel at all in space
  15. wave swill travel in straight lines or paths in a uniform medium
  16. dissipation of wave energy as the wave moves away from the source
  17. waves add as they meet
  18. sound travels down the auditory canal and strikes the eardrum. The vibrating eardrum causes 3 tiny bones on the other side of the eardrum to vibrate, they send pulses through the cochlea which is lined with cilia. The movement of cilia is detected as sound.
  19. particals on these waves vibrate parallel to the direction that the wave is moving
  20. depends upon the number of harmonics produced and their intensities
  21. waves will bounce off barriers at an angle equal to the angle they will strike the barrier
  22. a disturbance passing through a medium or space
  23. complete range of the longitudinal waves
  24. maximum displacement of a wave from the rest position or the size of the wave or how large the wave is
  25. number of waves passing each second, measured in hertz
  26. sound is produced by vibration, a vibrating object will send out a wave, the faster the object vibrates, the higher the frequency
  27. 2 sound waves close in frequency prducing an oscillating sound wave
  28. occurs when a standing sound wave is produced in a tube causing the tube to produce an amplified sound
  29. part of the sonic spectrum that humans can hear frequencies between 20Hz and 20,000Hz
  30. bending of a wave as it passes at an angle into another medium
  31. do not require a medium (light and radio waves)
  32. the distance from a point on one wave to the identical point on the next wave
  33. wave undergoes maximum displacement
  34. bending of waves around barriers
  35. range of frequencies above 20,000 Hz. Many animals can hear thes frequencies
  36. when 2 waves pass each other, the resulting wave is the vector of the 2 waves. After they meet, they continue undisturbed
  37. 120 dB over a long period of time
  38. change in frequency heard when the source of sound and the person recieving the sound are in relative motion
  39. animals like bats send out ultrasonic frequencies and "hear" the reflection to determine if an object is near
  40. require a medium to travel through (water and sound waves)
  41. decibel scale, can also be called relative intensity
  42. interference pattern produced when 2 waves of the same frequency and wavelength pass each other
  43. subjective perception of frequency
  44. power of the sound wave passing through an area
  45. wave undergoes no displacement