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In this unit you will analyze the effects of gravitational, magnetic, and mechanical forces, including friction, on the movement of objects. Then you will investigate characteristics of simple machines, including levers, wheels and axles, pulleys, inclined planes, screws, and wedges, for moving and lifting loads. You will also assess how natural and man-made forces and simple machines affect individuals, society, and the environment.

Useful Links:

The Elements of Machines
Simple Machines |
Launch Ball