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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.

Which loses the most heat in cooling to 10oC ?

  a glass filled with boiling water

  a kettle filled with water at 60oC

  a swimming pool filled with water at 30oC

  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, what will be the final temperature when 20.0 calories of heat are added to 4 g of water at 30oC ?

  35.0oC

  31.2oC

  28.8oC

  25.0oC

  Half-n-half Clue
 

3.

Heat is a form of _______.

  electricity

  energy

  expansion

  Half-n-half Clue
 

4.

A mass of 20 kg falls 80m. If all its potential energy is converted to heat and gravitational acceleration = 9.8 m/s2, then the heat gained is

  15680 J

  1600 J

  784 J

  196 J

  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 90oC to 15oC ?

  1260.0 J

  315.0 J

  300.0 J

  16.8 J

  Half-n-half Clue
 

6.

_______ requires no medium.

  Conduction

  Radiation

  Convection

  Half-n-half Clue
 

7.

The increase in the area of a solid on heating is called

  superficial expansion

  cubical expansion

  linear expansion

  Half-n-half Clue
 


 
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