Understand physics. Don't memorize it.
Every concept explained from first principles, with worked examples, common misconceptions called out by name, and interactive simulators you can play around with.
Mechanics
01
Kinematics
Position, velocity, acceleration, free fall, projectile motion.
Simulator
02
Dynamics
Newton's laws, friction, free-body diagrams, systems of forces.
Simulator
03
Circular Motion & Gravitation
Centripetal force, orbits, Newton's law of gravitation.
Simulator
Energy & Momentum
04
Energy
Work, kinetic and potential energy, conservation, power.
Simulator
05
Momentum
Impulse, collisions, conservation of momentum.
Simulator