Section #: 31.2 Other Galaxies in the Universe

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

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