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Moment of force =............... × distance of force from the point of turning.
Concept: undefined >> undefined
In a door, handle is provided ......... from the hinges.
Concept: undefined >> undefined
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Describe an experiment to determine the density of a liquid.
Concept: undefined >> undefined
Thrust is the ............ force acting on a surface.
Concept: undefined >> undefined
Match the column
| Column A | Column B |
| (a) Camel | (1) broad and deep foundation |
| (b) Truck | (2) broad feet |
| (c) Knife | (3) six or eight tyres |
| (d) High building | (4) sharp cutting edge |
| (e) Thrust | (5) atm |
| (f) Moment of force | (6) N |
| (g) Atmospheric pressure | (7) N m |
Concept: undefined >> undefined
SI. unit of moment of force is
Concept: undefined >> undefined
To obtain a given moment of force for turning a body, the force needed can be decreased by
Concept: undefined >> undefined
State two effects of a force when applied on a body.
Concept: undefined >> undefined
How does the effect of force differ when it is applied on a rigid body?
Concept: undefined >> undefined
How does the effect of force differ when it is applied on a non-rigid body?
Concept: undefined >> undefined
State the effect of force F in of the following diagram.

Concept: undefined >> undefined
State the effect of force F in of the following diagram.

Concept: undefined >> undefined
State the S.I. unit of moment of force.
Concept: undefined >> undefined
It is easier to swim in sea water than in river water. Explain the reason.
Concept: undefined >> undefined
State two factors on which affect moment of force.
Concept: undefined >> undefined
Icebergs floating on sea water are dangerous for ships. Explain the reason.
Concept: undefined >> undefined
Explain why it is easier to lift a stone under water than in air.
Concept: undefined >> undefined
In Fig. a force F is applied in a direction passing through the pivoted point O of the body. Will the body rotate? Give reason to support your answer.

Concept: undefined >> undefined
Write the expression for the moment of force about a given axis of rotation.
Concept: undefined >> undefined
