Simple Machines

By: Sarah Bowman


A pulley makes work easier by changing the direction of the force.

Ex: elevator


A screw is an inclined plane that is coiled around a shaft.

Ex: screwdriver


A wedge is two inclined planes put together. It changes force from moving downwards to moving outwards.

Ex: axe going into wood

Inclined Plane

An inclined plane is a simply titled surface. Like the steeper it is, the more it will go up.

Ex: wheelchair ramp

Wheel and Axle

It's a small cylinder (axle) joined to a large cylinder (wheel).

Ex: wheel barrow


Its a rigid bar that rotates around a fixed point, the fixed point is called the fulcrum.

Ex: see saw