Wheel and Axle

Wheel and Axle:  The wheel and axle is another simple machine.  The axle is a rod that goes through the wheel.  This lets the wheel turn.  It is easy to move things from place to place with wheels and axles.

 

You have probably seen a wheel and axle on a car.  The axle turns when you  put force on the wheel.  Can you think of a different place that you might find a wheel and axle on a car besides what you see in this picture?  How about the steering wheel or radio dials? TN00738A.gif (1685 bytes)

   

In this picture, this girl is pulling a wagon that has wheels and axles.  This simple machine makes it easier to move these items.  She would have a lot more work to do if she didn't have the wagon. 

Examples of Wheels and Axles:

 

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