Section #: 31.2 Other Galaxies in the Universe

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

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