Question

What is the advantage in using a simple machine?

Reduces the amount of work needed to move an object.
Increase the mechanical advantage by increasing the effort force that is applied.
Reduce the amount of energy required.
Reduce the work needed to effort force applied ration.

Answer 1

Reduces the amount of energy required, Im actually learning this too

Answer 2

Answer;

Reduces the amount of work needed to move an object.

Explanation;

• A simple machine is any device that reduces human effort to do work. They include, levers, inclined plane, pulleys, etc.
• Simple machines make work easier by multiplying, reducing, or changing the direction of a force and also by changing the distance the force acts through.
• Simple machines cannot change the amount of work done, however, they can reduce the effort force that is required to do the work. This is to mean, machines can neither increase or reduce the energy involved in doing work.