+
2 Tutorials that teach Simple Machines: Wheel and Axel
Take your pick:
Simple Machines: Wheel and Axel

Simple Machines: Wheel and Axel

Author: Nathan Lampson
Description:

Imagine moving a cart full of groceries around the supermarket in a cart with no wheels. The wheel and axel together as a working part is an example of a simple machine that makes it easier to perform tasks by using less force. You will explore the concept of mechanical advantage and how it is used to describe a factor of force required to perform tasks. You will also learn how to calculate mechanical force using the radius in a wheel and axel simple machine.

(more)
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

25 Sophia partners guarantee credit transfer.

226 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 20 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

 

The wheel and axel is a simple machine used to produce mechanical advantage.  A mechanical advantage is when an input force is amplified by the use of a tool.  

A wheel and axle is made of two circular or cylindrical objects that are fastened together.  The larger of the two objects is called the wheel and the smaller one is called the axle.

 

Example:

A screwdriver is a wheel and axel.

 

In order to calculate the mechanical advantage of a wheel and axel, you can divide the radius of the wheel by the radius of the axle.

 

mechanical advantage = radius of wheel / radius of axle

 

If a wheel's radius is 60cm and its axle is 30cm, what is the mechanical advantage of the wheel and axle?

 

mechanical advantage = radius of wheel / radius of axle

mechanical advantage = 60cm / 30cm

mechanical advantage = 2

 

The output force of the wheel and axle is 2 times greater than the input force.