Question

Explain the meaning of the term pulley

Answer 1

a wheel with a grooved rim around which a cord passes,which act to change the direction of force applied to the cord and used to rise heavy weight

Answer 2

A pulley is a simple machine that can rotate freely about a fixed point. A pulley is a flat circular disk made of metal or wood. The pulley generally changes the direction of applied force,upwards against gravity and downwards towards gravity. There are 2 examples of pulley -

1) Single fixed pulley

2) Single movable pulley