Section #: 31.2 Other Galaxies in the Universe

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

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