An inclined plane wrapped around a cylinder.
Something that holds wood together.
A screw is not a simple machine.
A flat sloped surface.
You can ride your skateboard up it, rather than walking up the stairs
it helps hold a door open so I don't have to.
It spreads the work out over a longer distance.
Wheel and Axle
Wedge and lever
Screw and incline plane
Pulley and wheel and axle