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.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    
      
  3.Galaxies are organized into large groups called __________. SC.E.2.4.2  
  a.   super galaxies  
  b.   solar systems  
  c.   superclusters  
  d.   variable galaxies  
  Hint    
      
  4.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 ellipticals, giant spirals  
  d.   dwarf spirals, giant ellipticals  
  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.The redshift of quasars measures __________. SC.E.2.4.3  
  a.   their intensity  
  b.   their age of formation  
  c.   their shape  
  d.   their distance from Earth  
  Hint    
      
  7.Most of the mass in cluster galaxies is __________. SC.E.2.4.2  
  a.   invisible  
  b.   spinning  
  c.   visible  
  d.   pulsating  
  Hint    
      
  8.Galaxies that are extremely bright are called __________. SC.E.2.4.2  
  a.   radio galaxies  
  b.   spiral galaxies  
  c.   active galactic nuclei  
  d.   superclusters  
  Hint    

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies