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📖 Lesson
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PERFECT!
🏎️ Friction Race
Same car. Three surfaces. Which one wins?
📖 What is friction?
Friction is the
force that slows things down
when surfaces rub. Rough surfaces (sandpaper) have
high friction
. Smooth surfaces (ice) have
low friction
.
F = μ × N
(μ = friction coefficient)
❄️ Ice
Very low (μ ≈ 0.05)
🛣️ Road
Medium (μ ≈ 0.3)
📜 Sandpaper
High (μ ≈ 0.7)
Predict which car goes farthest!
Your prediction:
❄️ Ice
🛣️ Road
📜 Sandpaper
🚦 Start Race
🏁 Race Done!
Ice won — least friction!
Next Race →