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School Physics Quiz : Stability & Moments


Answer the following questions based on stability & moments.

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Multiple choice

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1.

A force of 3 N acts on a small body pushing it vertically upwards. Simultaneously, another force of 8 N acts on it pushing it vertically downwards. The resultant of the two forces is _______.

  11 N downwards

  5 N upwards

  5 N downwards

  11 N upwards

  Half-n-half Clue
 

2.

funnel equilibrium An inverted funnel placed on a table is in _______ equilibrium.

  unstable

  stable

  neutral

  Half-n-half Clue
 

3.

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

  neutral

  unstable

  stable

  Half-n-half Clue
 

4.

A sphere that is at rest on a table is in _______ equilibrium.

  unstable

  neutral

  stable

  Half-n-half Clue
 

5.

The point where all the _______ of an object appears to be concentrated is called its center of gravity.

  weight

  density

  centripetal force

  centrifugal force

  Half-n-half Clue
 

6.

A pendulum at rest is in _______ equilibrium.

  neutral

  unstable

  stable

  Half-n-half Clue
 

7.

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

  constituents

  components

  resultants

  Half-n-half Clue
 


 
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