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School Physics Quiz : Work & Energy


Answer the following questions based on work & energy.

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Multiple choice

Your Performance  

1.

Both work and heat are measured in Joules.

  True

  False

 

2.

Power is the rate of doing work.

  True

  False

 

3.

The maximum amount of work that can be done by a 50 kW machine in 12 seconds is

  4 J

  600 J

  4 kJ

  600 kJ

  Half-n-half Clue
 

4.

'Energy can neither be created nor destroyed' is a statement of the

  Law of Conservation of Energy

  Law of Conservation of Electric Charges

  Law of Conservation of Matter

  Half-n-half Clue
 

5.

Kinetic energy of a body in motion equals the product of half its mass and the square of its _______

  distance

  acceleration

  velocity

  Half-n-half Clue
 

6.

When a current is supplied by a battery, _______ energy is converted to electrical energy.

  nuclear

  chemical

  mechanical

  Half-n-half Clue
 

7.

The SI unit of power is

  Watt

  Volt

  Joule

  Half-n-half Clue
 


 
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