Section #: 31.2 Other Galaxies in the Universe

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

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