Key Idea1 of 3
Size Changes Speed
When a big gear turns a small gear, the small one spins FAST. When a small gear turns a big one, the big one spins SLOW but with more power.
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Engineering — Gears and Motion
When a big gear turns a small gear, the small one spins FAST. When a small gear turns a big one, the big one spins SLOW but with more power.