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5 Written Questions

5 Matching Questions

  1. standing wave
  2. inner ear
  3. meters
  4. intensity
  5. periodic motion
  1. a a wave that appears to stay in one place--it does not seem to move through the medium
  2. b is the rate at which a wave's energy flows through a given area
  3. c uses nerve endings to sense vibrations and send signals to the brain---cochlea, auditory nerve
  4. d any motion that repeats at regular time intervals
  5. e unit used to measure wavelength

5 Multiple Choice Questions

  1. highest point of the wave above the rest position
  2. the number of complete cyles in a given time
  3. gathers and focuses sound----ear canal to ear drum
  4. is a physical response to the intensity of sound, modified by physical factors
  5. receives and ampliflies the vibrations--ear drum, hammer, anvil, stirrup

5 True/False Questions

  1. destructive interferenceoccurs when two or more waves combine to produce a wave with a smaller displacement

          

  2. constructive interferenceoccurs when two or more waves combine to produce a wave with a smaller displacement

          

  3. longitudinal wavea wave in which the vibration of the medium is parallel to the direction the wave travels.

          

  4. decibela unit that compares the intensity of different sounds

          

  5. diffractionthe bending of a wave as it enters a new medium at an angle

          

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