Six Simple Machines Chapter 4 section 3. Inclined Plane Wedge Screw Wheel and Axle Lever Pulley. Force. Any push or pull is defined as a force The unit of force is the newton 1 pound =4.5 newtons. Work. A force applied through a distance; W= F x d
Wheel and Axle
Height of incline
Example: if you are loading a truck that is 1 meter high using a ramp that is 3 meters long, the
IMA = 3m / 1m = 3
Therefore: the inclined plane increases the force you exert on the object by three times.
By increasing the length of the incline, the less input force needed to push or pull the object.
effort force (E) and resistance force (load) (R)
Ex. Wheelbarrow, a Door, a Nutcracker,
Effort arm distance (cms)
Resistance arm distance (cms)
A. fixed pulley-pulley that is attached to a structure
B. movable pulley- pulley attached to a structure that can move