Simple Machine: The Screw

Simple Machines: The ScrewThere are six simple machines. Theymake it easier for us to do work.

Simple Machines: The Screw

Simple Machines: The ScrewThe screw is one kind of simplemachine. Screws help us hold thingstogether.

Simple Machines: The ScrewA screw is a long post that is wrappedwith metal threads. A screw is actually akind of inclined plane.

Simple Machines: The ScrewIt is an inclined plane that is wrappedaround a cylinder.

Simple Machines: The ScrewIf you follow the threads on ascrew, they will form a long ramp fromthe bottom of the screw to the top ofthe screw.

Simple Machines: The ScrewThe threads on the screw may be closetogether. The threads may be fartherapart.

Simple Machines: The ScrewA screw with threads that are closetogether makes work easy to do. Itforms a long inclined plane.

Simple Machines: The ScrewThe work is easy to do, but you will haveto turn the screw many times.

Simple Machines: The ScrewA screw with threads that are fartherapart forms a shorter inclined plane.

Simple Machines: The ScrewThe work is harder to do, but you will nothave to turn the screw as many times.

Simple Machines: The Screw Skill Assessment

by Brent Daigle, Ph.D. on Nov 06, 2011