Section #: 31.2 Other Galaxies in the Universe

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

 
   
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