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School Physics Quiz : Stability & Moments


Answer the following questions based on stability & moments.

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Multiple choice

Your Performance  

1.

Two equal and opposite forces acting at a point are in equilibrium.

  True

  False

 

2.

A force of 6 N acts on a small body pushing it vertically upwards. Simultaneously, another force of 9 N acts on it pushing it vertically downwards. The resultant of the two forces is _______.

  15 N downwards

  3 N upwards

  3 N downwards

  15 N upwards

  Half-n-half Clue
 

3.

The center of gravity of a body is the point about which all the clockwise moments equal all the anticlockwise moments.

  True

  False

 

4.

A chalkstick that is balanced upright on a table is in _______ equilibrium.

  neutral

  stable

  unstable

  Half-n-half Clue
 

5.

The resultant of two forces acting at a point can be determined by using the 'Parallelogram of Forces'.

  True

  False

 

6.

Two forces acting at right angles, which have the same effect as a single force, are called _______.

  resultants

  components

  constituents

  Half-n-half Clue
 

7.

The moment of a force is inversely proportional to the turning effect of the force.

  True

  False

 


 
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