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Sound

Practice Test
      
  1.__________ is the ability of a medium to vibrate by absorbing energy at its natural frequency.  
  a.   Reverberation  
  b.   Resonance  
  c.   Quality  
  d.   Overtone  
  Hint    
      
  2.The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .  
  a.   sonar  
  b.   ultrasound  
  c.   echolocation  
  d.   radar  
  Hint    
      
  3.What type of waves are sound waves?  
  a.   sonar  
  b.   radio  
  c.   compressional  
  d.   transverse  
  Hint    
      
  4.What describes the differences among sounds of the same pitch and loudness?  
  a.   resonance  
  b.   overtone  
  c.   acoustics  
  d.   quality  
  Hint    
      
  5.__________ is the amount of energy that flows through a certain area in a specific amount of time.  
  a.   Intensity  
  b.   Pitch  
  c.   Loudness  
  d.   Frequency  
  Hint    
      
  6.The echoing effect produced by many reflections of sound is called __________ .  
  a.   rarefaction  
  b.   resonance  
  c.   intensity  
  d.   reverberation  
  Hint    
      
  7.The matter through which all sound waves travel is called __________ .  
  a.   a medium  
  b.   water  
  c.   atmosphere  
  d.   air  
  Hint    
      
  8.Sound waves cannot travel in __________.  
  a.   empty space  
  b.   solids  
  c.   liquids  
  d.   gases  
  Hint    
      
  9.Sounds are produced by __________ .  
  a.   vibrations  
  b.   reverberations  
  c.   pitch  
  d.   frequencies  
  Hint    
      
  10.How does temperature of a medium affect the speed of sound waves?  
  a.   As the temperature of a substance increases, sound waves in it move faster.  
  b.   Temperature does not affect the speed of sound waves.  
  c.   As the temperature of a substance decreases, sound waves in it move faster.  
  d.   As the temperature of a substance increases, sound waves in it move more slowly.  
  Hint    
      
  11.What is the difference between music and noise?  
  a.   Noise has a greater intensity than music.  
  b.   Music follows a specified pattern of sounds and pitches; noise has no pattern.  
  c.   It is strictly a matter of opinion.  
  d.   Music has a wider range of frequencies than noise.  
  Hint    
      
  12.__________ is a system that uses the reflection of underwater sound waves to detect objects.  
  a.   Echolocation  
  b.   Radar  
  c.   Sonar  
  d.   Ultrasound  
  Hint    
      
  13.The __________ is the frequency at which a material tends to vibrate when it is disturbed.  
  a.   quality  
  b.   pitch  
  c.   resonance  
  d.   natural frequency  
  Hint    
      
  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 frequency of 50 Hz  
  d.   sound wave with intensity of 100 dB  
  Hint    
      
  15.The human perception of sound frequency is __________ .  
  a.   intensity  
  b.   pitch  
  c.   loudness  
  d.   resonance  
  Hint    
      
  16.The __________ is a spiral-shaped structure filled with liquid.  
  a.   stirrup  
  b.   anvil  
  c.   hammer  
  d.   cochlea  
  Hint    
      
  17.The intensity of sound is measured in units called __________ .  
  a.   decibels  
  b.   reverberations  
  c.   hertz  
  d.   dopplers  
  Hint    
      
  18.The study of sound is __________ .  
  a.   acoustics  
  b.   ultrasonics  
  c.   linguistics  
  d.   sonar  
  Hint    
      
  19.In the human ear, sound waves are gathered in the __________ .  
  a.   cochlea  
  b.   inner ear  
  c.   outer ear  
  d.   middle ear  
  Hint    
      
  20.The human perception of sound intensity is __________ .  
  a.   pitch  
  b.   acoustics  
  c.   frequency  
  d.   loudness  
  Hint    

 
   
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