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School Physics Quiz : Stability & Moments


Answer the following questions based on stability & moments.

Formats Info Page Quiz Review
Multiple choice

Your Performance  

1.

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

  neutral

  unstable

  stable

  Half-n-half Clue  
 

2.

Consider a thin rectangular plastic sheet. If a small piece of the plastic breaks off at one of the vertices, then the center of gravity of the remaining plastic (with respect to the original center of gravity)

  cannot be determined.

  will not move.

  will move towards the broken vertex.

  will move away from the broken vertex.

  Half-n-half Clue  
 

3.

A pendulum at rest is in _______ equilibrium.

  neutral

  stable

  unstable

  Half-n-half Clue  
 

4.

A force of 3 N acts on a small body pushing it vertically upwards. Simultaneously, another force of 7 N acts on it pushing it vertically downwards. The resultant of the two forces is _______.

  10 N downwards

  4 N upwards

  10 N upwards

  4 N downwards

  Half-n-half Clue  
 

5.

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

  True

  False

 

6.

If a walking stick with a mass of 300 g can be balanced by placing a mass M of 120 g at a distance L of 30 cm from the fulcrum, then the center of gravity of the stick is _______ cm away from the fulcrum.

  12

  90

  40

  4

  Half-n-half Clue  
 

7.

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

  True

  False

 


 
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