Section #: 31.2 Other Galaxies in the Universe

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

McGraw-Hill / Glencoe
The McGraw-Hill Companies