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www.youtube.com/watch?v=fvOmaf2GfCY

Simple machines have been helping people to do work for thousands of years! The lever, wheel and axle, pulley, inclined plane, wedge, and screw each have a job to do.

www.neok12.com/Simple-Machines.htm

Simple machines are devices that can make a tough job easier by enabling a person to apply less force or to apply force in a direction that is easier to manipulate. There are six types of simple machines: lever, pulley, inclined plane, wedge, screw, and wheel and axle. Each machine affects the direction or the amount of effort needed to do work.

www.vexrobotics.com/.../simple-machines-and-motion/six-types-of-simple-machines

The six types of simple machines include Wheel & Axle, Inclined Plane, Wedge, Lever, Pulley, and Screw with each holding important principles in STEM. Beginning April 1, 2019, VEX Robotics will begin collecting sales tax in compliance with the recent South Dakota vs. Wayfair ruling. To ... video content ...

www.thoughtco.com/six-kinds-of-simple-machines-2699235

These simple machines create a greater output force than the input force; the ratio of these forces is the mechanical advantage of the machine. All six of the simple machines have been used for thousands of years, and the physics behind several of them were quantified by Archimedes. These machines can be used together to create an even greater ...

en.wikipedia.org/wiki/Simple_machine

A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. Usually the term refers to the six classical simple machines that were defined by Renaissance scientists:. Lever

idahoptv.org/sciencetrek/topics/simple_machines/facts.cfm

Videos; Simple Machines: Facts. See the Top 10 Questions. Once upon a time a person needed to move something heavy. He or she picked up a long stick and stuck it under the edge of the heavy object and then pushed down on the other end of the stick. And the first simple machine was invented. Simple machines are just that.

www.livescience.com/49106-simple-machines.html

Humans have invented six devices that combine to make work easier. These six simple machines are the wheel and axle, the lever, the inclined plane, the pulley, the screw and the wedge.

www.timvandevall.com/.../simple-machines-worksheets-six-simple-machines-for-kids

Simple machines for kids. On this page you will find 3 free simple machines worksheets for kids, as well as several simple machine examples. A simple machine is a mechanical device used to apply increased force. There are six simple machines: lever, inclined plane, wedge, pulley, wheel and axle, and screw.

www.teachervision.com/machines/six-simple-machines

This chart includes diagrams of six simple machines: a lever, a pulley, a wheel and axle, an inclined plane, a screw, and a wedge.