Question

1. a screw is actually a(n):

○ lever
○ inclined plane wrapped around a cylinder
○ wheel and axle
○ pulley

Explanation:

A screw is a simple machine that functions by having an inclined plane (the thread) wrapped around a cylindrical shaft. A lever operates with a fulcrum, a wheel and axle has a wheel and a central axle, and a pulley uses a grooved wheel and rope, none of which match the screw's structure.

Answer:

Inclined plane wrapped around a cylinder