Section #: 31.2 Other Galaxies in the Universe

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

 
   
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