Question

D. Answer in detail.

1. How do simple machines achieve their purpose of making work easier and faster to perform?

2. Write a note on lever and describe its mechanical advantage.​

Answer 1

Answer:

Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied. ... As such, the lever is a mechanical advantage device, trading off force against movement