Experimenters · Ages 13–16· λ = 530 nm

Motion and Newton's Laws

Describe motion with graphs, then overturn 2,000 years of intuition: things don't need a force to keep moving. Dock a spaceship, pull a cart with F = ma, and crash carts to see momentum conserved.

4 lessons 47 min 235 XP

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Lessons

1📈Describing motionPosition, velocity and acceleration, and the graphs that tell their story.12 min60 XP
2🛰️Inertia: Newton's first lawNothing needs a force to keep moving. Forces change motion; they don't maintain it.11 min55 XP
3🛒F = ma: Newton's second lawNet force causes acceleration, and mass resists it. The most useful equation in mechanics.12 min60 XP
4💥Action, reaction and momentumForces come in equal and opposite pairs, so the total momentum of a collision never changes.12 min60 XP