Simple Machine: The Screw

brentdaigle 4,110 views 12 slides Nov 06, 2011
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Simple Machines: The Screw   There are six simple machines. They make it easier for us to do work.

Simple Machines: The Screw  

Simple Machines: The Screw   The screw is one kind of simple machine. Screws help us hold things together.

Simple Machines: The Screw   A screw is a long post that is wrapped with metal threads. A screw is actually a kind of inclined plane.

Simple Machines: The Screw   It is an inclined plane that is wrapped around a cylinder.

Simple Machines: The Screw   If you follow the threads on a screw, they will form a long ramp from the bottom of the screw to the top of the screw.

Simple Machines: The Screw   The threads on the screw may be close together. The threads may be farther apart.

Simple Machines: The Screw   A screw with threads that are close together makes work easy to do. It forms a long inclined plane.

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

Simple Machines: The Screw   A screw with threads that are farther apart forms a shorter inclined plane.

Simple Machines: The Screw   The work is harder to do, but you will not have to turn the screw as many times.

Simple Machines: The Screw   Skill Assessment
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