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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.

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

  True

  False

 

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)

  will move towards the broken vertex.

  will move away from the broken vertex.

  will not move.

  cannot be determined.

  Half-n-half Clue  
 

3.

There are fundamentally _______ kinds of equilibrium.

  four

  three

  two

  Half-n-half Clue  
 

4.

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.

  moment

  stability

  momentum

  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.

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  
 

7.

An object with a high center of gravity is more stable than an object with a low center of gravity.

  True

  False

 


 
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