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Powerpoint Description:

This PowerPoint covers: an introduction to forces, contact vs non-contact forces, vector and scalar quantities, resultant force and how to work it out, drawing scaled pictures of resultant forces, vector diagrams, balanced and unbalanced forces, free body force diagrams, turning moments, balancing a seesaw, calculating an unknown force or distance to pivot, the principle of moments, levers and gears and how they work, reducing unwanted energy transfers.

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