Section #: 31.2 Other Galaxies in the Universe

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

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