Section #: 31.2 Other Galaxies in the Universe

Practice Test
      
  1.Galaxies that are extremely bright are called __________. SC.E.2.4.2  
  a.   active galactic nuclei  
  b.   superclusters  
  c.   radio galaxies  
  d.   spiral galaxies  
  Hint    
      
  2.The redshift of quasars measures __________. SC.E.2.4.3  
  a.   their age of formation  
  b.   their intensity  
  c.   their distance from Earth  
  d.   their shape  
  Hint    
      
  3.Which galaxy shape is not a part of Hubble's classification system? SC.E.2.4.2  
  a.   spiral  
  b.   irregular  
  c.   spherical  
  d.   elliptical  
  Hint    
      
  4.How did Hubble categorize galaxies? SC.E.2.4.2  
  a.   distance from the Milky Way  
  b.   pulsating variable stars  
  c.   shapes  
  d.   luminosity  
  Hint    
      
  5.Galaxies are organized into large groups called __________. SC.E.2.4.2  
  a.   superclusters  
  b.   solar systems  
  c.   variable galaxies  
  d.   super galaxies  
  Hint    
      
  6.The smallest galaxies are called __________ and the largest are called __________. SC.E.2.4.2  
  a.   irregular, ellipticals  
  b.   dwarf ellipticals, giant spirals  
  c.   dwarf ellipticals, giant ellipticals  
  d.   dwarf spirals, giant ellipticals  
  Hint    
      
  7.What was the first galaxy to be discovered outside of Earth's galaxy? SC.E.2.4.2  
  a.   the Andromeda Galaxy  
  b.   the Sagittarius Galaxy  
  c.   the Local Group  
  d.   the Virgo  
  Hint    
      
  8.Most of the mass in cluster galaxies is __________. SC.E.2.4.2  
  a.   pulsating  
  b.   visible  
  c.   invisible  
  d.   spinning  
  Hint    

 
   
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