Classical Mechanics
Circular Motion and Centripetal Force
Why does a whirling object keep turning instead of flying off straight? The answer is a force that always points…
Classical Mechanics
Classical Mechanics
Simple Harmonic Motion
From a swinging pendulum to a vibrating guitar string, one elegant pattern of back-and-forth motion underlies them all.
Kinematics
Acceleration in Physics
Acceleration is not just speeding up — it is any change in velocity, and understanding it unlocks how motion really…
Classical Mechanics
Hooke’s Law and Springs
Why a stretched spring pulls back harder the further you pull it, and where that tidy straight line finally breaks.
Classical Mechanics
Work Done in Physics
Carrying a heavy box across a flat room does zero physical work — here is why physics defines effort so…
Kinematics
Free Fall and Terminal Velocity
A feather and a hammer fall at the same rate in a vacuum — but in air, drag eventually wins…
Kinematics
Velocity vs Speed
You can drive a full lap at 100 km/h and have an average velocity of exactly zero — direction is…
Classical Mechanics
Friction Force Explained
The force that lets you walk, brake, and tie your shoes is also why nothing keeps moving forever — friction,…
Classical Mechanics
Angular Momentum
A spinning skater pulls in her arms and speeds up — the same conservation law that keeps planets orbiting and…
Classical Mechanics
Torque in Physics
Why pushing a door near its hinge barely moves it, and how the same twisting physics tightens a bolt and…