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

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies