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Practice Test
  1.The matter through which all sound waves travel is called __________ .  
  a.   air  
  b.   water  
  c.   atmosphere  
  d.   a medium  
  2.The __________ is a spiral-shaped structure filled with liquid.  
  a.   stirrup  
  b.   cochlea  
  c.   anvil  
  d.   hammer  
  3.In the human ear, sound waves are gathered in the __________ .  
  a.   inner ear  
  b.   outer ear  
  c.   cochlea  
  d.   middle ear  
  4.What is the difference between music and noise?  
  a.   Music has a wider range of frequencies than noise.  
  b.   Noise has a greater intensity than music.  
  c.   Music follows a specified pattern of sounds and pitches; noise has no pattern.  
  d.   It is strictly a matter of opinion.  
  5.The two types of regions that make up compressional waves are __________ .  
  a.   compressions and transmissions  
  b.   compressions and rarefactions  
  c.   vibrations and transmissions  
  d.   compressions and extensions  
  6.The human perception of sound intensity is __________ .  
  a.   loudness  
  b.   pitch  
  c.   acoustics  
  d.   frequency  
  7.The human perception of sound frequency is __________ .  
  a.   intensity  
  b.   pitch  
  c.   loudness  
  d.   resonance  
  8.The change in pitch due to a moving wave source is called __________ .  
  a.   the Doppler effect  
  b.   the compressional effect  
  c.   resonance  
  d.   a rarefaction  
  9.Sounds are produced by __________ .  
  a.   pitch  
  b.   frequencies  
  c.   reverberations  
  d.   vibrations  
  10.__________ is a system that uses the reflection of underwater sound waves to detect objects.  
  a.   Echolocation  
  b.   Ultrasound  
  c.   Radar  
  d.   Sonar  
  11.A(n) __________ is a vibration whose frequency is a multiple of the fundamental frequency.  
  a.   reverberation  
  b.   natural frequency  
  c.   overtone  
  d.   resonant frequency  
  12.What describes the differences among sounds of the same pitch and loudness?  
  a.   overtone  
  b.   resonance  
  c.   acoustics  
  d.   quality  
  13.__________ waves are sound frequencies above 20,000 Hz.  
  a.   Supersonic  
  b.   Ultrasonic  
  c.   Subsonic  
  d.   Infrasonic  
  14.The __________ is the frequency at which a material tends to vibrate when it is disturbed.  
  a.   pitch  
  b.   natural frequency  
  c.   resonance  
  d.   quality  
  15.In which of the following mediums will sound travel fastest?  
  a.   brick  
  b.   water  
  c.   air  
  d.   oil  
  16.The study of sound is __________ .  
  a.   sonar  
  b.   ultrasonics  
  c.   linguistics  
  d.   acoustics  
  17.Sound waves cannot travel in __________.  
  a.   liquids  
  b.   empty space  
  c.   solids  
  d.   gases  
  18.What type of waves are sound waves?  
  a.   radio  
  b.   transverse  
  c.   compressional  
  d.   sonar  
  19.__________ is the amount of energy that flows through a certain area in a specific amount of time.  
  a.   Loudness  
  b.   Frequency  
  c.   Intensity  
  d.   Pitch  
  20.The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .  
  a.   echolocation  
  b.   sonar  
  c.   ultrasound  
  d.   radar  

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