Question

machines help us to do work. a machine is a device that makes work easier. it does this by changing the direction of the force, changing the amount of force, or changing the distance over which the force is being spread. work is defined mathematically as force times distance. how do machines make work easier? they change the force, distance, or direction. they increase the amount of work being done. they change the amount of work being done.

Explanation:

The text on the left side of the image clearly states that a machine makes work easier by changing the direction of the force, the amount of force, or the distance over which the force is spread. This directly matches the first option on the right side. The second option is incorrect because machines do not increase the amount of work (work is force times distance, and machines don't create extra work in a physical sense, they just make it easier by redistributing force, distance, or direction). The third option is also incorrect as the text emphasizes changing force, distance, or direction - not just the amount of work.

Answer:

They change the force, distance, or direction.