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Basics of Mechanics
Ten lessons, one per big idea — motion, forces, energy, momentum and the oscillation that ties them together. Nothing you can skip.
10 lessons6 chapters~4hno sign-up
Ten lessons, one per big idea — motion, forces, energy, momentum and the oscillation that ties them together. Nothing you can skip.
10 lessons6 chapters~4hno sign-up
Before you can explain motion, learn to describe it exactly — speed, direction, and how they change.
How fast velocity changes — and how one line hides both the rate and the distance.
Four equations that crack any constant-acceleration problem.
Two independent motions — one falling, one flying.
Newton's big idea: a force is what changes motion. Meet the everyday forces that push and pull.
Tracking forces moment by moment is hard. Energy lets you jump straight to the answer.
A second quantity nature never loses — the master key to collisions and recoil.
Aim a force sideways and motion curves — from a bend in the road to the Moon's orbit.
Everything you have learned, recombined: a restoring force, energy trading back and forth, and a period that ignores how hard you push.