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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.

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)

  will not move.

  will move away from the broken vertex.

  cannot be determined.

  will move towards the broken vertex.

  Half-n-half Clue
 

2.

The _______ of a force is the product of the force and the shortest distance from a point to the line of action of the force.

  momentum

  stability

  moment

  Half-n-half Clue
 

3.

If a man pushes a door with a force of 5 N, then the moment he exerts about the hinge 90 cm away is _______.

  4.5 N m

  9.0 N m

  450.0 N m

  900.0 N m

  Half-n-half Clue
 

4.

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

  True

  False

 

5.

funnel equilibrium A funnel that is balanced upright on a table on its narrow tip is in _______ equilibrium.

  stable

  unstable

  neutral

  Half-n-half Clue
 

6.

A force of 5 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 _______.

  13 N upwards

  3 N downwards

  13 N downwards

  3 N upwards

  Half-n-half Clue
 

7.

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

  True

  False

 


 
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