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Practice Test
  1.What describes the differences among sounds of the same pitch and loudness?  
  a.   overtone  
  b.   resonance  
  c.   quality  
  d.   acoustics  
  2.__________ is the ability of a medium to vibrate by absorbing energy at its natural frequency.  
  a.   Reverberation  
  b.   Resonance  
  c.   Overtone  
  d.   Quality  
  3.__________ is the amount of energy that flows through a certain area in a specific amount of time.  
  a.   Frequency  
  b.   Intensity  
  c.   Pitch  
  d.   Loudness  
  4.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  
  5.A(n) __________ is a vibration whose frequency is a multiple of the fundamental frequency.  
  a.   resonant frequency  
  b.   natural frequency  
  c.   reverberation  
  d.   overtone  
  6.In the human ear, sound waves are gathered in the __________ .  
  a.   outer ear  
  b.   cochlea  
  c.   middle ear  
  d.   inner ear  
  7.The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .  
  a.   radar  
  b.   sonar  
  c.   echolocation  
  d.   ultrasound  
  8.The matter through which all sound waves travel is called __________ .  
  a.   a medium  
  b.   air  
  c.   water  
  d.   atmosphere  
  9.__________ waves are sound frequencies above 20,000 Hz.  
  a.   Supersonic  
  b.   Ultrasonic  
  c.   Infrasonic  
  d.   Subsonic  
  10.The echoing effect produced by many reflections of sound is called __________ .  
  a.   rarefaction  
  b.   resonance  
  c.   intensity  
  d.   reverberation  
  11.What type of waves are sound waves?  
  a.   transverse  
  b.   sonar  
  c.   radio  
  d.   compressional  
  12.Sounds are produced by __________ .  
  a.   reverberations  
  b.   vibrations  
  c.   frequencies  
  d.   pitch  
  13.The change in pitch due to a moving wave source is called __________ .  
  a.   a rarefaction  
  b.   the compressional effect  
  c.   resonance  
  d.   the Doppler effect  
  14.Which of the following will you hear as a high pitch?  
  a.   sound wave with intensity of 10 dB  
  b.   sound wave with frequency of 10,000 Hz  
  c.   sound wave with intensity of 100 dB  
  d.   sound wave with frequency of 50 Hz  
  15.What is the difference between music and noise?  
  a.   Music follows a specified pattern of sounds and pitches; noise has no pattern.  
  b.   Music has a wider range of frequencies than noise.  
  c.   It is strictly a matter of opinion.  
  d.   Noise has a greater intensity than music.  
  16.The intensity of sound is measured in units called __________ .  
  a.   decibels  
  b.   hertz  
  c.   dopplers  
  d.   reverberations  
  17.The study of sound is __________ .  
  a.   sonar  
  b.   acoustics  
  c.   ultrasonics  
  d.   linguistics  
  18.In which of the following mediums will sound travel fastest?  
  a.   air  
  b.   water  
  c.   brick  
  d.   oil  
  19.The human perception of sound intensity is __________ .  
  a.   pitch  
  b.   acoustics  
  c.   loudness  
  d.   frequency  
  20.The __________ is a spiral-shaped structure filled with liquid.  
  a.   hammer  
  b.   stirrup  
  c.   cochlea  
  d.   anvil  

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