doorknobs, volume knobs, wrenches, a Ferris wheel, a faucet handle, bicycle wheel,clock
Some examples of compound machines areZipperCan openerBikeWedges/ ScissorsStaplerPencil SharpenerCeiling FanPizza CutterBulldozerWheelbarrowThose are some common examples.
Transportation would be a use of the wheel and axle.
Some examples of items that use a wheel and axle are cars (wheels on the axles), bicycles (wheels connected to the axle of the pedals), and rolling luggage (wheels attached to an axle for easier transportation).
Some compound machines found at school include scissors (lever and wedge), stapler (lever, wedge, and wheel and axle), and pencil sharpener (wheel and axle and screw).
Some examples of things that have a wheel and axle are cars, bicycles, wheelbarrows, and rollerblades. The wheel and axle mechanism allows for efficient movement and transportation by reducing friction and enabling rotation.
Some large suitcases do have small wheels and an axle.
Some devices that use a wheel and axle include cars, bicycles, wagons, and pulley systems. The wheel and axle mechanism helps to facilitate the movement and transfer of power in these devices.
A short wheel base frame is 102" and some change from axle to axle. Long wheel base is 112" and some change.
The axle and the wheel are some of the earliest human technological innovations. The axle is a rod in which the wheel is placed - allowing it to freely spin. This has allowed humans to move articles much more easily than simply by hand.
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.
It is used in our everyday lives. Many things can go in a circular motion. As long as the two objects are different sizes and when attached they end up rotating together. Some examples would be a pencil sharpener or ferris wheel.