Final answer:
A screw is a simple machine that consists of an inclined plane wrapped around a cylinder, providing an easier way to lift or hold objects using rotational force.
Step-by-step explanation:
The simple machine composed of a cylindrical body with an inclined plane wrapped around the body is known as a screw. A screw is essentially an inclined plane that spirals around a cylinder, allowing for objects to be held together or lifted with the use of rotational force. The concept behind the screw is similar to that of an inclined plane or ramp, which makes it easier to move objects upward with less effort compared to lifting them vertically. The applied force is distributed along the threads of the screw, reducing the amount of force needed to move or lift the object.