Section #: 31.2 Other Galaxies in the Universe

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

 
   
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