Question

A pulley makes our work easier by changing the direction of the force.

• A. True
• B. False

Answer 1

The correct option is A True

$\text{Solution}:$

1. There are three ways simple machines make work easier: by increasing the distance through which force is applied, by changing the direction of applied force, or by multiplying force of speed of the energy applied.

2. A single pulley reverses the direction that a force is applied, but does not make work easier.

3. If two or more pulleys are used together, they allow a load to be lifted using less force, but the distance the end of the rope must travel to lift the load is greater than the distance that the load must travel.

$\text{Hence A is the correct option}$