The human rider turning chemical energy into kinetic energy and possibly into kinetic energy.
ferris wheel, a bicycle, a screw and a doorknob ferris wheel, a bicycle, a screw and a doorknob
A bicycle is both.
The wheel, and many other things a bicycle is a compound machine
Depends on make and model of bicycle
A bicycle tire is a tire which fits on the wheel of a bicycle or similar vehicle.
Unicycle = 1 wheel. Bicycle = 2 wheels. Tricycle = 3 wheels.
It is obvious that the pedals drive the back wheel in some fashion having a lot to do with the chain between them and gears. The rubber tire on the wheel makes contact with the road and friction makes it go.
A bicycle fork is the portion of a bicycle that holds the front wheel and allows the rider to steer and balance the bicycle.
wheel+wheel=bicycle
Wheel and axle.
A bicycle
swirly chairs