Section #: 31.2 Other Galaxies in the Universe

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

 
   
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