A second variation of the lever is the simple machine known as a wheel and axle. A wheel and axle consists of two circular pieces of different sizes attached to each other. The larger circular piece is the wheel in the system, and the smaller circular piece is the axle. One of the circular pieces can be considered as the effort arm of the lever and the second, the resistance arm. The place at which the two are joined is the fulcrum of the system. Some examples of the wheel and axle include a door knob, a screwdriver, an egg beater, a water wheel, the steering wheel of an automobile, and the crank used to raise a bucket of water from a well. When the wheel in a wheel and axle machine is turned, so is the axle, and vice versa. For example, when you turn the handle of a screwdriver, the edge that fits into the screw head turns at the same time. The mechanical advantage of a wheel and axle machine can be found by dividing the radius of the wheel by the radius of the axle. For example, suppose that the crank on a water well turns through a radius of 2 ft (61 cm) and the radius of the axle around which the rope is wrapped is 4 in (10 cm). Then the mechanical advantage of this wheel and axle system is 2 ft divided by 4 in, or 6.
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pulley
wheel and axleA doorknob is a lever.Some of the door knobs are made up of wheel and axle.A door knob is a wheel and axle. It has a wheel that is fastened to an axle
wheel and axleA doorknob is a lever.Some of the door knobs are made up of wheel and axle.A door knob is a wheel and axle. It has a wheel that is fastened to an axle
Wheel,axle, and leaver
The door knob is the wheel, and the axle is inside of it allowing it to spin and open, the wheel uses a small force and the axle strengthens it up.
A wheel barrow is a simple machine because it is made up of two or more simple machines. A wheel and axle, and a lever.
A phone is made up of some screws a wheel and axle. Hope it helped!
People use Archimedes' invention of the wheel and axle for picking up things easier. You can find a well as a wheel and axle, because you use a well to bring up water from the ground.
Because the toilet paper is the wheel and the line that holds the toilet paper up is the axle so that makes a toilet paper dispenser a wheel and axle!!:)
The wheel and axle have been known from ancient times and nobody knows who first came up with the idea.
A bike is a simple machine, because it has a wheel and axle.