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

 
   
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