Section #: 31.2 Other Galaxies in the Universe

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

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