A screw driver is a lever. The bigger diameter of the handle compared to the tip amplifies the turning force.
It is a screw.
Screw
incline plane
IT's NOT A SIMPLE MACHINE!
It is just simply a screw, because that is one of the simple machines.
screw l
It's a screw on thanks!
wedge is another simple machine kind of lever
A vise has 2 simple machines, a screw and a lever, but the main one is the screw.
A chocolate fountain is an example of a screw - an Archimedes Screw, to be exact.
Pulley, lever, wedge, wheel and axel, inclined plane, and screw.
A chair is not a simple machine unless it is a swivel chair that moves due to a screw, A screw is an example of a simple machine. Some other examples are wheel and axle, wedge, and pulley.