What Are Simple Machines?
Simple machines are simple tools used to make work easier.
The Six Classical Simple Machines
- There are six main types of simple machines: Inclined plane, Wedge, Screw, Wheel and Axle, Pulley, and The Lever
1. Inclined Plane is a plane surface set at an angle against a horizontal surface. The inclined plane allows you to overcome a great amount of resistance (weight, gravity) by applying a small amount of force throughout a longer distance then the object is to be raised.
2. Wedge is a triangular shaped tool used to separate, lift or hold an object in place.
3. Screw is an inclined plane wrapped around a cylinder. Can be used to fasten, lift or press an object
4. Wheel and axle moves objects across distances. The wheel is connected to an axle. Movement occurs when force is applied to the wheel. Can be used to lift, move and apply tension to an object
5. Pulleys are made up of a wheel and cord. When the cord is wrapped around the pulley, as the wheel rotates, the cord moves in either direction. Can be used to rise or lower objects.
6. Lever is an arm that pivots on a point known as a fulcrum. Can be used to pry or lift an object.