Lesson: ESR Gearing Up & Gearing Down

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Watch this video to learn about 2-Gear Gear Trains:


Then build this crank & wheel with gears:


1) Turn the crank and notice the direction and speed the wheel turns

2) Swap the crank and wheel - what changes?

3) Try using the 24 tooth gear (shown to the side in the above picture) instead of the small gear - what changes?

4) Do you see a pattern of how fast the wheel turns based on the location of the larger and smaller gear?



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