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School Physics Quiz : Heat


Answer the following questions based on heat.

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Multiple choice

Your Performance  

1.

Heat is a form of _______.

  energy

  electricity

  expansion

  Half-n-half Clue
 

2.

_______ have the highest calorific value.

  Vitamins

  Fats

  Proteins

  Sugars

  Carbohydrates

  Half-n-half Clue
 

3.

Liquids exhibit only _______ expansion.

  superficial

  linear

  cubical

  Half-n-half Clue
 

4.

The heat supplied by a bunsen-burner flame on burning 5 m3 of gas which has a calorific value of 25000 J/m3 is

  125.0 kJ

  5.0 kJ

  125000kJ

  5000.0 kJ

  Half-n-half Clue
 

5.

A mass of 40 kg falls 70m. If all its potential energy is converted to heat and gravitational acceleration = 9.8 m/s2, then the heat gained is

  2800 J

  686 J

  27440 J

  392 J

  Half-n-half Clue
 

6.

Different gases have the same rate of expansion for the same rise in temperature.

  True

  False

 

7.

Water at 20oC is mixed with an equal mass of water at 60oC. If there are no heat losses to the surroundings, then what is the final temperature of the water mixture ?

  80.0oC

  60oC

  20oC

  40.0oC

  Half-n-half Clue
 


 
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