ch07 - MULTIPLECHOICE. 1 Asubstance canabsorb heatenergy...

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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.  1) 
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A substance  can absorb  heat energy  by the  process of 
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1)  _______  A) 
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convection. 
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B)  radiatio n. 
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conduction. 
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D)  all of  these    2
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Metals are  both good  heat  conductors  and also  good  electrical  conductors  because of  the 
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2)  _______  A)  r e l a t i v e l y  hi gh  de nsi ties  of  me tals a b il it of metals  to  transfer  energy  easily. 
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looseness of outer  electrons in metal atoms.  D) 
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high elasticity of  metals.  E) 
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similarity between  thermal and electrical conductive properties.    3) 
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A good heat  conductor is 
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3)  _______  A)  p o o r  ins ula tor.  g o od  insulator. 
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neither a poor nor a  good insulator    4) 
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Your feet  feel warmer  on a rug than  on a tile  floor  because the  rug 
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4)  _______  A)  f o r   t h e   s a m e   m ass  has  mo re  the rm al  ene rgy  tha tile is  b etter  insulator  than tile. 
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is usually warmer than  tile.  D) 
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all of these  E) 
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none of these    5) 
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A water - filled paper  cup held in a  flame will  not catch  fire.  This is  because 
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5)  _______  A)  w a t e r   i s   a n  ex cel len co nd uct or  of  hea t.  t h p a p e cup  cannot  become  appreciab ly hotter  than the  water it  contains. 
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paper is a poor  conductor of heat.  D) 
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the inside of the paper  is wet.    6) 
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If you were  caught in  freezing  weather with  only a  candle for  heat, you  would be  warmer in 
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6)  _______  A) 
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a car. 
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B)  a  wooden house. 
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an igloo. 
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D)  a tent.    7
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ch07 - MULTIPLECHOICE. 1 Asubstance canabsorb heatenergy...

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