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Sound

Practice Test
      
  1.The __________ is the frequency at which a material tends to vibrate when it is disturbed.  
  a.   natural frequency  
  b.   pitch  
  c.   quality  
  d.   resonance  
  Hint    
      
  2.The __________ is a spiral-shaped structure filled with liquid.  
  a.   anvil  
  b.   stirrup  
  c.   hammer  
  d.   cochlea  
  Hint    
      
  3.What type of waves are sound waves?  
  a.   compressional  
  b.   transverse  
  c.   radio  
  d.   sonar  
  Hint    
      
  4.The echoing effect produced by many reflections of sound is called __________ .  
  a.   reverberation  
  b.   intensity  
  c.   resonance  
  d.   rarefaction  
  Hint    
      
  5.What describes the differences among sounds of the same pitch and loudness?  
  a.   overtone  
  b.   resonance  
  c.   quality  
  d.   acoustics  
  Hint    
      
  6.Which of the following will you hear as a high pitch?  
  a.   sound wave with intensity of 100 dB  
  b.   sound wave with frequency of 50 Hz  
  c.   sound wave with frequency of 10,000 Hz  
  d.   sound wave with intensity of 10 dB  
  Hint    
      
  7.The study of sound is __________ .  
  a.   sonar  
  b.   acoustics  
  c.   linguistics  
  d.   ultrasonics  
  Hint    
      
  8.The intensity of sound is measured in units called __________ .  
  a.   decibels  
  b.   reverberations  
  c.   dopplers  
  d.   hertz  
  Hint    
      
  9.In which of the following mediums will sound travel fastest?  
  a.   oil  
  b.   brick  
  c.   water  
  d.   air  
  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 more slowly.  
  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 faster.  
  d.   Temperature does not affect the speed of sound waves.  
  Hint    
      
  11.__________ is a system that uses the reflection of underwater sound waves to detect objects.  
  a.   Sonar  
  b.   Echolocation  
  c.   Radar  
  d.   Ultrasound  
  Hint    
      
  12.__________ 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  
  Hint    
      
  13.The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .  
  a.   radar  
  b.   ultrasound  
  c.   echolocation  
  d.   sonar  
  Hint    
      
  14.The human perception of sound frequency is __________ .  
  a.   pitch  
  b.   resonance  
  c.   intensity  
  d.   loudness  
  Hint    
      
  15.A(n) __________ is a vibration whose frequency is a multiple of the fundamental frequency.  
  a.   reverberation  
  b.   overtone  
  c.   resonant frequency  
  d.   natural frequency  
  Hint    
      
  16.What is the difference between music and noise?  
  a.   It is strictly a matter of opinion.  
  b.   Noise has a greater intensity than music.  
  c.   Music has a wider range of frequencies than noise.  
  d.   Music follows a specified pattern of sounds and pitches; noise has no pattern.  
  Hint    
      
  17.The change in pitch due to a moving wave source is called __________ .  
  a.   a rarefaction  
  b.   the Doppler effect  
  c.   resonance  
  d.   the compressional effect  
  Hint    
      
  18.The two types of regions that make up compressional waves are __________ .  
  a.   compressions and rarefactions  
  b.   vibrations and transmissions  
  c.   compressions and transmissions  
  d.   compressions and extensions  
  Hint    
      
  19.The human perception of sound intensity is __________ .  
  a.   loudness  
  b.   acoustics  
  c.   frequency  
  d.   pitch  
  Hint    
      
  20.The matter through which all sound waves travel is called __________ .  
  a.   water  
  b.   atmosphere  
  c.   air  
  d.   a medium  
  Hint    

 
   
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