Lesson 3

The Ramp icon The Screw

A screw has been attached to our slab, as we turn the screw the slab is lifted a certain distance. How far it is lifted each turn is determined by how far apart the threads are. The number of threads per a given distance is called thread density.

You will test our flood gate using several thread densities. The force applied and the distance the gate is lifted will be recorded. Select a thread density and click on the "Lift!" button. We will experiment with the wheel diameter in the next lab, so leave this one the same for this test.


Be sure to copy these numbers into your lab packet after each test. Test at least 4 different settings.


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