✦ Free & Open Source

Physics feels
different when
you see it move

Sketch-animated, interactive lessons for thermodynamics, forces, momentum, SHM, light and more. No textbook. No boredom.

Start Learning → Browse Topics
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Each topic has live simulations, real-time graphs & interactive formula calculators
🔥

Thermodynamics

Ideal gas law, heat transfer, Carnot engine, entropy. Watch molecules collide in real time.

4 lessons Interactive
PV = nRT
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 ⚡

Forces & Motion

Newton's laws, free body diagrams, friction, projectile motion — all animated and interactive.

4 lessons Drag & Drop
F = ma
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 〜

Simple Harmonic Motion

Springs, pendulums, energy oscillations. Feel the rhythm of SHM with live phase plots.

4 lessons Animated
x = A·cos(ωt)
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 💡

Light & Optics

Refraction, reflection, lenses, wave interference. Draw your own ray diagrams.

4 lessons Ray Tracer
n = c/v
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 🔄

Circular Motion

Centre of mass, centripetal force, centrifugal effect, and banking of roads — all live and interactive.

4 lessons Animated
F = mv²/r
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 ⚙

Electricity

Ohm's law, circuits, capacitors. Coming soon!

Coming soon
V = IR
6
Topics
16+
Interactive lessons
∞
Play & explore
0
Cost (free forever)