yes
Wedge
A wedge is a double sided screw basically. Therefore, the difference is the number of sides.
A wedge is a double sided screw basically. Therefore, the difference is the number of sides.
Wedge
Wedge and lever.
A wedge. It can be argued, in fact, that a screw is not really a simple machine in itself, as it is really a wedge wrapped around an axle.
Yes
A wedge, or rather, a combination of an infinite number of wedges arranged in a circle.
The screw that tightens to hold the needle in place, and loosens when you want to change the needle.
A needle is a type of simple machine called a wedge. Its sharp pointed end allows it to easily penetrate materials, making it useful for tasks like sewing.
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.
Wedge