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Time4Learning Demos

Wheel & Axle – Simple Machines

A wheel and axle is made up of a disk (the wheel) and a thin cylinder (the axle) attached to its center. When effort is applied to one, a useful effect is produced at the other.

A wheeled cart can easily be moved a greater distance than trying to carry the object in your arms.

More Resources about the Wheel and Axle Simple Machine

The Wheel and Axle
This simple machine involves two circular objects — a larger disc and a smaller cylinder, both joined at the centre. The larger disc is called the wheel, and the smaller cylindrical object or rod is referred to as the axle. Sometimes, there may be two wheels attached to both ends of the axle. A wheel alone or an axle alone is not a simple machine. They need to be joined to be called a simple machine.

by Kelly Doudna
Wheel and axle, wedge, and screw. Lever and pulley and inclined plane, too! Learning about the six simple machines has never been more fun! Through exciting science projects and activities kids can easily do at home or school, tomorrow’s scientists and engineers will have a blast learning about simple machines and how they make daily life easier. This book is the perfect STEM companion for curious minds at home or in the classroom.
Book includes: biographical spotlights on famous scientists and inventors; introduction to each simple machine, including real-world examples & history; materials & tools list; infographics; step-by-step instructions and photos; safety information; timeline; glossary; and index.

Video illustrations of Simple Machines

Inclined Plane
Wheel & Axle


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