6 Simple Machines
melissa.w 8-3
1. Lever
A bar used to help move a heavy load on one end when pressure is applied to another.
2. Wheel & Axle
a simple machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
3. Inclined Plane (ramp)
a plane inclined at an angle.
4.Pulley
A wheel with a grooved around which the cord moves in. The force of direction changes when the cord is pulled the other way.
5.Wedge
A piece of wood or other materials with one large end and one small end, used to separate an object.
6.Screw
A metal, sharp pointed object used to hold two pieces of material tightly in place.