Question

A screw is a type of simple machine. If we look closely at a screw, we see that it is really a _________ wrapped around a central core.

Answer 1

is is really an inclined plane 

Answer 2

D. Inclined Plane

" Try this! Take a piece of paper and fold it into a right triangle. Wrap it around a pencil. That is a screw - an inclined plane wrapped around a central core."

-usatestprep