Section #: 31.2 Other Galaxies in the Universe

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

 
   
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