Classical Mechanics
Centre of Gravity vs Centre of Mass: Definition & Applications
Push a pencil off the edge of a table slowly and there is a precise point at which it tips…
Classical Mechanics
Classical Mechanics
Centripetal vs Centrifugal Force: What’s Real & What’s Not
Spin a bucket of water fast enough in a vertical circle and the water stays in, even upside down. Ride…
Classical Mechanics
Bernoulli’s Principle: P + ½ρv² + ρgh = constant
Bernoulli’s principle is one of the most practical ideas in all of fluid dynamics, explaining everything from why airplanes generate…
Classical Mechanics
Conservation of Energy: Law, Forms & Worked Examples
Energy is at the center of almost every physical process in the universe, and the conservation of energy is the…
Classical Mechanics
Gravitational Fields: g = GM/r², Field Lines & Orbital Speed
Understanding gravitational fields means understanding why objects fall the way they do, why satellites stay in orbit, and why the…
Classical Mechanics
Gravitational Potential Energy: GPE = mgh Formula, Derivation & Examples
Lift a book off a table, stretch a spring, or carry water up to a rooftop tank, and in each…
Classical Mechanics
Impulse & Momentum: J = FΔt = Δp Formula & Worked Examples
Impulse & momentum are two of the most important concepts in classical mechanics, and they explain everything from why airbags…
Classical Mechanics
Escape Velocity: v = √(2GM/r) Formula, Derivation & Worked Examples
Escape velocity is one of the most fascinating ideas in classical mechanics and astrophysics. It explains why a rocket needs…
Classical Mechanics
Mechanical Energy: KE + PE, Conservation & Energy Transformations
Mechanical energy is one of the first ideas that ties motion and position together into a single, usable number. Every…
Classical Mechanics
Momentum and Impulse Collisions: Conservation Laws & Examples
Momentum and impulse collisions form one of the most important topics in classical mechanics. Every time two objects crash into…