Section #: 31.2 Other Galaxies in the Universe

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

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