Six Simple Machines
Sivanah Mungal 8-2 Scince Flyer
What are the six simple machines?
There are six simple machines which include pullyes, levers, wedges, wheels, inclined planes, and screws.
Pulleys
A pulley is a wheel on an axle that is designed to support the weight of an object. Pulleys change the direction of a cable or belt as it moves along the circumference of the wheel. Some examples of a pulley would be a clothing line, window blinds, and flag pole pulleys.
Levers
A lever is a machine that consists a beam or rod that is pivoted at a fixed hinge, or fulcrum. A leaver provides leverage by multiplying the input force in order to increase the output force. Examples of levers would be a seesaw and tweezers.
Wedges
A wedge is a triangular shaped mechanical device. Wedges are able to separate two objects or portions of an object, lift an object, or hold an object in place. Examples would be a doorstop or a knife.
Wheel and Axle
A wheel is a circular object designed to rotate around an axle. A wheel and axle help move objects. The faster the axle turns, the faster the wheel spins. Some examples are tires of a car and doorknobs.
Inclined Planes
An inclined plane is a flat surface that is higher at one end. Inclined planes make the work of moving things easier. Some examples of inclined planes are ramps used to transport products on and off trucks and diagonal surface used by people with wheelchairs in order to get from one level to the next.
Screws
A screw has two parts, the inclined plane is the thread that raps around the screw which is a cylinder or long rod. Screws are able to hold down objects and hold objects together.
Example of a Lever
Example of an Inclined Plane
Example of a Pulley
The six simple machines assist humans in order to make work easier. They are used in everyday life for a variety of different applications. These six simple machines (pulley, inclined plane, wheel and axle, screw, and wedge) are helpful and amazing tools.