Question

A machine can help us in doing ……..work.

Answer 1

Simple machines help us work more easily and quickly.

Purpose of simple machines:

1. To lift a heavy load by applying a small effort. That is a multiply effort.
2. To change the effort in the desired direction.
3. To speed up the motion of a body.
4. For doing unsafe and dangerous work.

Hence, A machine can help us in doing unsafe work.