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.   elliptical  
  b.   spherical  
  c.   spiral  
  d.   irregular  
  2.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  
  3.Most of the mass in cluster galaxies is __________. SC.E.2.4.2  
  a.   spinning  
  b.   pulsating  
  c.   invisible  
  d.   visible  
  4.How did Hubble categorize galaxies? SC.E.2.4.2  
  a.   distance from the Milky Way  
  b.   luminosity  
  c.   shapes  
  d.   pulsating variable stars  
  5.The redshift of quasars measures __________. SC.E.2.4.3  
  a.   their intensity  
  b.   their age of formation  
  c.   their shape  
  d.   their distance from Earth  
  6.Galaxies that are extremely bright are called __________. SC.E.2.4.2  
  a.   spiral galaxies  
  b.   superclusters  
  c.   radio galaxies  
  d.   active galactic nuclei  
  7.Galaxies are organized into large groups called __________. SC.E.2.4.2  
  a.   super galaxies  
  b.   solar systems  
  c.   variable galaxies  
  d.   superclusters  
  8.What was the first galaxy to be discovered outside of Earth's galaxy? SC.E.2.4.2  
  a.   the Local Group  
  b.   the Sagittarius Galaxy  
  c.   the Virgo  
  d.   the Andromeda Galaxy  

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