Turning a pencil in a sharpener, turning the stopcock of a water tap, turning the doorknob, and so on are some of the examples where a force produces a turning effect.

QUICK QUIZ

1: Name some more objects that work by the turning effects of forces:

(i)  Torque is produced when a force is applied to the paddle of a  bicycle. Because by applying force its wheels experience the  rotational effect (torque)

(ii) Torque is produced when a force is applied to the door to open.