ch26 -...

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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.  1) 
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The ecliptic 
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1)  _______  A)  r e f e r s   t o   t h e   g ase fro wh ich  our  sol ar  sys te for me d.  is  t h a v erage  distance  between  the Sun  and  Earth. 
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occurs during a solar or  lunar eclipse.  D) 
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is the plane of Earth’s  orbit.    2) 
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Nebular  theory  pertains to  the  formation of 
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2)  _______  A) 
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a galaxy. 
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B)  the  asteroid belt. 
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the solar system. 
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D)  the  Earth.    3
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A cloud of  interstellar  gas is held  together by 
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3)  _______  A) 
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the gravitational force. 
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B)  electro magnetism. 
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infrared radiation. 
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D)  All of  the above.    4
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A spinning  cloud of  interstellar  gas tends to 
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4)  _______  A) 
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disperse. 
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B)  turn into a sphere. 
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flatten. 
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D)  condens e.    5
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How long  does it take  for Earth to  revolve  around the  sun? 
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5)  _______  A) 
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one week 
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B)  one day 
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one month 
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D)  one year    6
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The best  evidence  that the Sun  is a  newcomer in  the universe  is 
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This note was uploaded on 02/11/2011 for the course PS 300 taught by Professor Na during the Spring '11 term at Cornell University (Engineering School).

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ch26 -...

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