A pulley is a simple machine that has a grooved wheel that holds a rope or a cable. This is used to lift heavy loads. It is also known as sheave or drum.
a wheel and axel
A pulley
Pulley
a pulley
A pulley
A pulley isn't a kind of simple machine, it is a simple machine
That would most likely be a pulley. A pulley is essentially a wheel on an axle that usually has a groove in the middle of its circumference that holds a rope, cable, belt, or chain. Pulleys are used to transmit motion rotationally and apply force in the direction of said motion. Two or more pulleys makes a tackle. Hope this is what you were looking for.
Not the whole part of the bike but the pedals are levers a kind of simple machine it uses the levers to apply force to the sprocket sprocket is a wheel and axle ,another simple machine,that uses gears to move the chain.
That isn't a simple machine, it is a complex machine, made up of other simple machines.
a pulley
pulley
The chain is wrapped around a cogwheel, which could be described as a pulley.
In essence it is a pulley in which the chain and the wheel cannot slip with regard to each other.
An example of simple gears is the chain, chain-wheel and free-wheel sprocket as used on a single geared bicycle. More complicated gearing is the modern bicycle's derailleur system of multiply chain-wheels, a cluster of sprockets, a chain, and gear changer mechanism.
Yes. It is a pulley.
A complex machine is a machine using more than one simple machine for its operation. A bicycle is a complex machine, using a lever for steering (handlebars), wheel and axle, inclined plane (the threads on bolts), and a pulley (chain on sprockets).