define turning effect
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A force may cause an object to turn about a pivot. The turning effect of a force is called the moment of the force. Moments act about a pivot in a clockwise or anticlockwise direction.
If a body under the action of a net external force is allowed to rotate about a pivot, the body will tend to turn in the direction of the applied force. Examples of turning effect of force: A person pushing a swing will make the swing rotate about its pivot. A worker applies a force to a spanner to rotate a nut.
The turning effect of a force is known as the moment. It is the product of the force multiplied by the perpendicular distance from the line of action of the force to the pivot or point where the object will turn.
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