Section #: 31.2 Other Galaxies in the Universe

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

McGraw-Hill / Glencoe
The McGraw-Hill Companies