The blade is a wedge, as all blades are. It is also a wheel and axle, allowing it to rotate.
pulley
lever
Wheel and Axle.
It's a simple machine, more specifically a second class lever. That means there is a specific effort force, fulcrum and object force.
Yes. A paper cutter combines a lever and a wedge.
A pulley isn't a kind of simple machine, it is a simple machine
The type of simple machine that a slope is, is a inclined plane
it is a valve, which is not a simple machine.
a simple machine.
a phone isn't a simple machine stupid
A sink isn't any type of simple machine. It's just a container.
A sink isn't any type of simple machine. It's just a container.