Section #: 31.2 Other Galaxies in the Universe

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

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