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.

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

 

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