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Practice Test
  1.The human perception of sound frequency is __________ .  
  a.   intensity  
  b.   pitch  
  c.   loudness  
  d.   resonance  
  2.The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .  
  a.   ultrasound  
  b.   echolocation  
  c.   radar  
  d.   sonar  
  3.The __________ is a spiral-shaped structure filled with liquid.  
  a.   hammer  
  b.   cochlea  
  c.   anvil  
  d.   stirrup  
  4.The two types of regions that make up compressional waves are __________ .  
  a.   compressions and transmissions  
  b.   compressions and extensions  
  c.   compressions and rarefactions  
  d.   vibrations and transmissions  
  5.The intensity of sound is measured in units called __________ .  
  a.   hertz  
  b.   dopplers  
  c.   reverberations  
  d.   decibels  
  6.The echoing effect produced by many reflections of sound is called __________ .  
  a.   rarefaction  
  b.   resonance  
  c.   intensity  
  d.   reverberation  
  7.__________ waves are sound frequencies above 20,000 Hz.  
  a.   Subsonic  
  b.   Supersonic  
  c.   Ultrasonic  
  d.   Infrasonic  
  8.Which of the following will you hear as a high pitch?  
  a.   sound wave with frequency of 10,000 Hz  
  b.   sound wave with intensity of 100 dB  
  c.   sound wave with intensity of 10 dB  
  d.   sound wave with frequency of 50 Hz  
  9.A(n) __________ is a vibration whose frequency is a multiple of the fundamental frequency.  
  a.   reverberation  
  b.   overtone  
  c.   resonant frequency  
  d.   natural frequency  
  10.__________ is the ability of a medium to vibrate by absorbing energy at its natural frequency.  
  a.   Resonance  
  b.   Quality  
  c.   Reverberation  
  d.   Overtone  
  11.What is the difference between music and noise?  
  a.   Noise has a greater intensity than music.  
  b.   It is strictly a matter of opinion.  
  c.   Music has a wider range of frequencies than noise.  
  d.   Music follows a specified pattern of sounds and pitches; noise has no pattern.  
  12.The study of sound is __________ .  
  a.   acoustics  
  b.   linguistics  
  c.   sonar  
  d.   ultrasonics  
  13.In which of the following mediums will sound travel fastest?  
  a.   water  
  b.   brick  
  c.   oil  
  d.   air  
  14.The human perception of sound intensity is __________ .  
  a.   acoustics  
  b.   frequency  
  c.   pitch  
  d.   loudness  
  15.__________ is the amount of energy that flows through a certain area in a specific amount of time.  
  a.   Loudness  
  b.   Intensity  
  c.   Pitch  
  d.   Frequency  
  16.Sound waves cannot travel in __________.  
  a.   gases  
  b.   empty space  
  c.   solids  
  d.   liquids  
  17.What describes the differences among sounds of the same pitch and loudness?  
  a.   resonance  
  b.   quality  
  c.   overtone  
  d.   acoustics  
  18.In the human ear, sound waves are gathered in the __________ .  
  a.   outer ear  
  b.   cochlea  
  c.   inner ear  
  d.   middle ear  
  19.What type of waves are sound waves?  
  a.   compressional  
  b.   radio  
  c.   transverse  
  d.   sonar  
  20.The matter through which all sound waves travel is called __________ .  
  a.   a medium  
  b.   atmosphere  
  c.   air  
  d.   water  

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