Part 1 of Essay
Definitions: Machine- A device that makes work easier by changing the speed , direction, or amount of a force. Simple Machine- A device that performs work with only one movement. Simple machines include lever, wheel and axle, inclined plane, screw, and wedge. Ideal Mechanical Advantage (IMA)- A machine in which work in ....

Part 2 of Essay
.... ordinary broom is a machine. It is a form of a lever. Our country or world would never be this evolved if it wasn't for machine. Almost every thing we do has a machine involved. We use machines to manufacture goods, for transportation, ect. In the W=F*d equation the trade of between force and distance is as you use a machine the force goes down and distance goes up. If there was no friction they would be equal and trade. There are six simple machines. They are a lever, pulleys, inclined plain, wheel and a ....