Question

Name the factors affecting the turning effect of a body.

Answer 1

Hint: Turning effect or torque of a body is a force that produces a rotating effect on a body. Torque produced depends on the perpendicular distance at which the force is applied on the body.

Complete step by step answer:
As we know that the turning effect produced by a force on a rigid body about a point, pivot or fulcrum is called the moment of force or torque. It is measured by the product of force and the perpendicular distance of the pivot from the line of action of force
Therefore, we can say that, the turning effect on a body depends on:
A. The magnitude of the force applied
B. A distance of line of action of the force from the axis of rotation.

Note: 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:
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.
A person removes a bottle’s cork by pushing down the bottle opener’s lever.
A force is applied to a door knob and the door swings open about its hinge.
A driver can turn a steering wheel by applying a force on its rim.