Section #: 31.2 Other Galaxies in the Universe

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

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies