Step-by-step explanation:
You ask a good question and the answer could be as the following:
A simple machine uses one applied power to do action against a single load force. Ignoring friction losses, the work done on the load is equal to the work done by the applied force. The machine can increase the amount of production force, at the expense /cost of a relative decrease in the distance moved by the load.
Now,the question can be 'How can machines make the work easier?'
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. ... That's because a machine doesn't change the amount of work and work equals force times distance.
Some simple examples of machines:
The inclined plane.
The lever.
The wedge.
The wheel and axle.
The pulley.
The screw.
Hope you're satisfied with my answer.. Good Luck!