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School Physics Quiz : Work & Energy


Answer the following questions based on work & energy.

Formats Info Page Quiz Review
Multiple choice

Your Performance  

1.

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

  Law of Conservation of Electric Charges

  Law of Conservation of Energy

  Law of Conservation of Matter

  Half-n-half Clue
 

2.

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

  nuclear

  mechanical

  chemical

  Half-n-half Clue
 

3.

A carton is pulled along the ground for a distance of 8 m. If the average frictional force is 74 N, then the work done is

  4736 J

  74 J

  8 J

  592 J

  Half-n-half Clue
 

4.

_______ is the capacity to do work.

  Force

  Pressure

  Energy

  Half-n-half Clue
 

5.

By definition, work is done when a _______ moves through a distance.

  mass

  pressure

  force

  Half-n-half Clue
 

6.

A mass of 5 kg is raised through a vertical distance of 100 m. If the gravitational acceleration is 9.8 m s-2, then the potential energy gained by the mass is

  980 J

  4900 J

  49 J

  500 J

  Half-n-half Clue
 

7.

A boy throws a ball vertically upwards from ground level. If the ball reaches a maximum height of 250 m and the gravitational acceleration is 9.8 m/s2, with what speed did the boy throw the ball?

  10 m/s

  70 m/s

  50 m/s

  35 m/s

  Half-n-half Clue
 


 
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