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Quizzes Quiz

Practice Test
  1.What describes the differences among sounds of the same pitch and loudness?  
  a.   overtone  
  b.   resonance  
  c.   acoustics  
  d.   quality  
  2.The echoing effect produced by many reflections of sound is called __________ .  
  a.   intensity  
  b.   resonance  
  c.   rarefaction  
  d.   reverberation  
  3.Sounds are produced by __________ .  
  a.   pitch  
  b.   vibrations  
  c.   frequencies  
  d.   reverberations  
  4.In which of the following mediums will sound travel fastest?  
  a.   brick  
  b.   oil  
  c.   water  
  d.   air  
  5.The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .  
  a.   echolocation  
  b.   radar  
  c.   sonar  
  d.   ultrasound  
  6.The __________ is the frequency at which a material tends to vibrate when it is disturbed.  
  a.   resonance  
  b.   pitch  
  c.   quality  
  d.   natural frequency  
  7.Sound waves cannot travel in __________.  
  a.   gases  
  b.   empty space  
  c.   solids  
  d.   liquids  
  8.__________ waves are sound frequencies above 20,000 Hz.  
  a.   Supersonic  
  b.   Ultrasonic  
  c.   Subsonic  
  d.   Infrasonic  
  9.The human perception of sound frequency is __________ .  
  a.   intensity  
  b.   pitch  
  c.   loudness  
  d.   resonance  
  10.In the human ear, sound waves are gathered in the __________ .  
  a.   middle ear  
  b.   outer ear  
  c.   cochlea  
  d.   inner ear  
  11.What type of waves are sound waves?  
  a.   sonar  
  b.   transverse  
  c.   compressional  
  d.   radio  
  12.__________ is the ability of a medium to vibrate by absorbing energy at its natural frequency.  
  a.   Quality  
  b.   Reverberation  
  c.   Resonance  
  d.   Overtone  
  13.The human perception of sound intensity is __________ .  
  a.   frequency  
  b.   acoustics  
  c.   pitch  
  d.   loudness  
  14.How does temperature of a medium affect the speed of sound waves?  
  a.   Temperature does not affect the speed of sound waves.  
  b.   As the temperature of a substance decreases, sound waves in it move faster.  
  c.   As the temperature of a substance increases, sound waves in it move more slowly.  
  d.   As the temperature of a substance increases, sound waves in it move faster.  
  15.Which of the following will you hear as a high pitch?  
  a.   sound wave with frequency of 50 Hz  
  b.   sound wave with intensity of 100 dB  
  c.   sound wave with intensity of 10 dB  
  d.   sound wave with frequency of 10,000 Hz  
  16.The study of sound is __________ .  
  a.   ultrasonics  
  b.   acoustics  
  c.   linguistics  
  d.   sonar  
  17.The intensity of sound is measured in units called __________ .  
  a.   dopplers  
  b.   decibels  
  c.   reverberations  
  d.   hertz  
  18.__________ is a system that uses the reflection of underwater sound waves to detect objects.  
  a.   Radar  
  b.   Sonar  
  c.   Ultrasound  
  d.   Echolocation  
  19.The __________ is a spiral-shaped structure filled with liquid.  
  a.   anvil  
  b.   stirrup  
  c.   cochlea  
  d.   hammer  
  20.A(n) __________ is a vibration whose frequency is a multiple of the fundamental frequency.  
  a.   resonant frequency  
  b.   overtone  
  c.   reverberation  
  d.   natural frequency  

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