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Earthquakes

Practice Test
      
  1.The __________ of an earthquake is located on Earth's surface directly above the earthquake's origin.  
  a.   seismic point  
  b.   epicenter  
  c.   seismogram  
  d.   focus  
  Hint    
      
  2.Earthquakes are more likely to occur in __________.  
  a.   every location equally  
  b.   northern Russia  
  c.   northern Africa  
  d.   western South America  
  Hint    
      
  3.In the shadow zone, seismic waves are __________.  
  a.   not detected  
  b.   disappearing  
  c.   speeding up  
  d.   slowing down  
  Hint    
      
  4.A __________ is used to measure seismic waves.  
  a.   barometer  
  b.   seismogram  
  c.   seismologist  
  d.   seismograph  
  Hint    
      
  5.Which type of seismic wave travels the fastest?  
  a.   surface  
  b.   tsunami  
  c.   primary  
  d.   secondary  
  Hint    
      
  6.A person who studies earthquakes is called a(n) __________.  
  a.   astronomer  
  b.   seismologist  
  c.   meteorologist  
  d.   cartographer  
  Hint    
      
  7.Rocks sliding past each other are a display of __________ forces.  
  a.   normal  
  b.   shear  
  c.   tension  
  d.   compression  
  Hint    
      
  8.Forces of __________ result in rocks being stretched apart.  
  a.   shear  
  b.   normal  
  c.   tension  
  d.   compression  
  Hint    
      
  9.Rocks can break when the __________ is exceeded.  
  a.   elastic limit  
  b.   fault line  
  c.   plate boundary  
  d.   elastic deformation  
  Hint    
      
  10.Which layer of Earth is plasticlike?  
  a.   upper mantle  
  b.   outer core  
  c.   inner core  
  d.   crust  
  Hint    
      
  11.One rock surface hanging over an adjacent rock surface might indicate that __________ fault action has occurred.  
  a.   strike-slip  
  b.   compression  
  c.   reverse  
  d.   normal  
  Hint    
      
  12.__________ waves produce the most earthquake destruction.  
  a.   Primary  
  b.   Surface  
  c.   Tsunami  
  d.   Secondary  
  Hint    
      
  13.The place where an earthquake originates is called the __________.  
  a.   fault line  
  b.   focus  
  c.   tsunami  
  d.   epicenter  
  Hint    
      
  14.__________ faults are formed by forces of tension.  
  a.   Compression  
  b.   Normal  
  c.   Reverse  
  d.   Strike-slip  
  Hint    
      
  15.Reverse faults occur as a result of __________ forces.  
  a.   compression  
  b.   shear  
  c.   tension  
  d.   normal  
  Hint    
      
  16.A(n) __________ is caused by underwater earthquakes.  
  a.   seismogram  
  b.   tsunami  
  c.   Moho  
  d.   epicenter  
  Hint    
      
  17.Readings need to be taken from at least __________ to determine the origin of an earthquake.  
  a.   four stations  
  b.   three stations  
  c.   one station  
  d.   two stations  
  Hint    
      
  18.Mountains are formed on the __________.  
  a.   outer core  
  b.   crust  
  c.   upper mantle  
  d.   inner core  
  Hint    
      
  19.When __________ occurs due to shaking from an earthquake, solids like wet soil can act more like liquids.  
  a.   elasticity  
  b.   Moho  
  c.   petrification  
  d.   liquefaction  
  Hint    
      
  20.The San Andreas Fault is the largest fault of this kind in California.  
  a.   normal  
  b.   compression  
  c.   reverse  
  d.   strike-slip  
  Hint    

 
   
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