Just think about that for a minute or two - does a wheel in ANY way resemble wedge to you - -
There is no mystery wedge
no
If used properly, a screwdriver is a wheel and axle combination. If you use it to pry things, it can be a lever and if you pound it into something it serves as a wedge. A screw is a wedge with an incline plane.
It is a wedge.
Wedge
Wheel Chock
A broom is a wedge
no
The Pulley is one of them. Wheel and axle. lever. screw. wedge. inclined plane.
It is a wedge. It is also a lever.
wheel and axle
It contains a wedge and wheel/axle