Section #: 31.2 Other Galaxies in the Universe

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

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