A can opener.
NO
A wheelbarrow is not a simple machine; it is a complex machine. There are two simple machines used in it. One is a lever, and the other is the wheel and axle.A leverA 3rd class lever and a wheel.lever and wheel-and-axle
The wheel and axle are primarily used for moving items and for transportation. It vastly reduces the friction between objects by converting it to a rotational motion. Common non-vehicular axles are seen in roller conveyors (with or without covering belts). A door knob is the reverse version of a wheel and axle. It translates a small force on the turning wheel to operate the axle (cylinder), which turns the door spindle (bolt).
5. Lever
The kinds of simple machine are: Lever, Inclined Plane, Wheel and Axle, Screw, Wedge, Pulley. Lever is a rigid bar that turns or pivots on a fired point called fulcrum. It is used to push, pull or lift objects using less force. Inclined Plane is a ramp or scope that reduces the force you need to exert in lifting something. Wheel and Axle is a device in which a small wheel is attached at the center of a larger wheel. Screw is a inclined plane wound around a post. Wedge is used to cut, split or divide objects.It is made up of 2 inclined planes put back to back to form a sharp edge. Pulley is used to raise and to lower objects.It is a grooved wheel that turns on an axle and acts as lever, a simple machine which consist of small wheel with groove on a rope.
No, a pencil is an object used to apply carbon lead to writing materials.
because they are very important to the world and we use them everyday such as a wheel and axle that are used on doorknobs.
NO
NO
NO
NO
NO
the radius of the axle and the radius of the wheel
wheel is a type of circle which is used in vehicles etc. and axle in science means which is related to wheel. like friction is needed so that wheels could turn about the axle.
A wheelbarrow is not a simple machine; it is a complex machine. There are two simple machines used in it. One is a lever, and the other is the wheel and axle.A leverA 3rd class lever and a wheel.lever and wheel-and-axle
Wheel and Axle and a Lever.
The Egyptians used the wheel and axle by transporting big stones blocks so they could build houses and pyramids