__

E

Today is
 More Activities

Simple Machines:

THE LEVER

THE SCREW

THE WEDGE

THE INCLINED PLANE

THE WHEEL AND AXLE

THE PULLEY

WHAT IS MECHANICAL ADVANTAGE

ASSESSMENT TEST

 

Mass vs. Weight
Volume
Density
Density Challenge
Assessment
Science Projects
 

 

 

 Schools and Careers

Careers Home Page

What are the 20 fastest growing career?

Colleges and Universities -- USA and Foreign

Career Guide for Kids and Teens

Select a Career

Science

Math

Vocational Careers

Nursing

Biotechnology

 

 

 

 

 

 

 

 

SIMPLE MACHINES -- THE WHEEL AND AXEL

The wheel and axle is a simple machine.

The wheel and axle consists of a handwheel (a disc or lever arm with a handle) which turns an axle around which a chord is wound. A heavy weight attached to the chord can be lifted more easily because of mechanical advantage.

The mechanical advantage of a wheel and axle is the ratio of the radius of the wheel to the radius of the axle. If the radius of the wheel is four times greater than the radius of the axle, every time you turn the wheel once, your force will be multiplied four times.

Examples of wheel and axles are:

Bicycles, Ferris wheels, gears, wrenches, door-knobs and steering wheels.















 

Need a Calculator
Click for Calculator. A pop-up window will open with a calculator. Make sure all pop-up windows are closed or visible.

 

 

 
All text is available under the terms of the GNU Free Documentation License (see Copyrights for details). Disclaimers. Wikipedia is powered by MediaWiki, an open source wiki engine.

 

Questions or Comments?
Copyright 1999 EdInformatics.com
All Rights Reserved
.