A Wheel and Axle is a wheel connected to a stiff stick. A Wheel and Axle is made of two disks (wheels) of different sizes that are mounted in a way that allows them to turn together around the same axis. This assembly lets you trade distance for force in a doorknob or force for distance in a bicycle.
Some examples of a Wheel and Axle are the Ferris Wheel, a toy wagon, and washing machine drum.
Wheel and Axles can be used to move objects long distances like a bus or a taxi.
Another use for the Wheel and Axle is that it can be used to open things (doorknob).
Another use for the Wheel and Axle is that it can be used to open things (doorknob).
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