An inclined plane, of course! All of the moving companies use ramps (a type of inclined plane) to unload and load their trucks.
lever
That would be a lever.
That would be a lever.
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.
It would be a ramp or wedge.
a knife
A screw is the simple machine which holds two boards together. In this case it is not acting as a machine though.
a simple machine.
That would be a lever.
a phone isn't a simple machine stupid
A protractor is not considered a simple machine. It is a measuring tool used to measure angles.