Thursday, March 24, 2011

levers

Levers are one of the most important simple machine. They are all around us and we don't realize it. We use levers for almost everything. things like turning on lights, lifting things, and opening cans. There are many types of levers, your arm is considered a lever. Levers are clasified buy their fulcrum placement and where you aply fource.

Levers

When the fulcrum is close to the object being lifted it requires less force. THe relationship of the input force and out put force was easier when the fulcum force was closest to the object being lifted. The inclined plane was easier to use when it was longer. If the inclined plane is too long it would take forever to get to the top