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School Physics Quiz : Heat


Answer the following questions based on heat.

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Multiple choice

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1.

If the temperature of a body is _______ that of its surroundings, it will lose heat to its surroundings.

  equal to

  lower than

  higher than

  Half-n-half Clue
 

2.

Given that 1 cal (about 4.2 J) of heat is required to raise the temperature of 1 g of water by 1oC, how much heat is required to raise the temperature of 4 g of water by 7oC?

  29.4 J

  117.6 J

  28.0 J

  16.8 J

  Half-n-half Clue
 

3.

Water at 30oC is mixed with an equal mass of water at 90oC. If there are no heat losses to the surroundings, then what is the final temperature of the water mixture ?

  60.0oC

  120.0oC

  90oC

  30oC

  Half-n-half Clue
 

4.

The method of mixtures assumes that the heat lost by the hot body equals

  the heat gained by the cold body

  the heat gained by the hot body

  the heat lost by the cold body

  Half-n-half Clue
 

5.

Given that 1 cal (about 4.2 J) of heat is lost by 1 g of water in cooling by 1oC, how much heat is lost by 4 g of water in cooling from 85oC to 15oC ?

  16.8 J

  294.0 J

  1176.0 J

  280.0 J

  Half-n-half Clue
 

6.

Liquids exhibit only _______ expansion.

  linear

  cubical

  superficial

  Half-n-half Clue
 

7.

_______ requires no medium.

  Radiation

  Conduction

  Convection

  Half-n-half Clue
 


 
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