ch04 -...

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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.  1) 
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Newton  discovered 
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1)  _______  A)  t h a t   g rav ity  is  uni ver sal.  g ravity. 
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neither    2) 
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What is the  force of  gravity on a  500 - woman  standing on  Earth's  surface? 
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2)  _______  A)  5 0 9.8  5 00 N 
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250 N  D) 
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50 N  E) 
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none of these    3) 
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If the mass  of the Earth  somehow  increased  with no  change in  radius, your  weight  would 
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3)  _______  A) 
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decrease. 
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B) 
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increase also. 
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C)  stay  th sa   4) 
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Consider  two planets  in space that  gravitational ly attract  each other.  If the masses  of both  planets is  doubled, and  the distance  between  them is also  doubled,  then the  force  between  them is 
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4)  _______  A)  f o u r   tim es  as  mu ch.  o n e - quarter. 
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half as much.  D) 
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twice as much.  E) 
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none of these    5) 
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If your mass,  the mass of  the Earth,  and the mass  of  everything  in the solar  system were  twice as  much as it is  now, yet  everything  stayed the  same size,  your weight  on Earth  would 
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5)  _______  A)  b e   t he  sa me q uadruple. 
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double.  D) 
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be eight times as much  as now.  E) 
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none of these    6) 
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If the radius  of the Earth  somehow  decreased  with no  change in  mass, your  weight  would 
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6)  _______  A) 
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decrease. 
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B) 
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increase. 
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ch04 -...

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