Thermodynamics
Ideal Gas Law: PV = nRT
Four quantities, one equation: how pressure, volume, temperature, and amount conspire to describe nearly every gas you meet.
Thermodynamics
Thermodynamics
Specific Heat Capacity
Why water takes so long to boil and metal heats up in a flash — one property explains how stubbornly…
Waves & Optics
The Electromagnetic Spectrum
Radio waves, visible light, and gamma rays are all the same thing — only the wavelength changes across this vast,…
Thermodynamics
Entropy Explained
Why does spilled milk never un-spill and heat never flow uphill? The answer is entropy — nature's relentless drift toward…
Kinematics
Acceleration in Physics
Acceleration is not just speeding up — it is any change in velocity, and understanding it unlocks how motion really…
Modern Physics
Special Relativity Explained
Moving clocks run slow and fast objects shrink — Einstein's two simple postulates overturned our deepest assumptions about space and…
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…
Electromagnetism
Magnetic Fields and Forces
Magnetism only acts on charges that move, and the force it delivers always pushes sideways — never speeding anything up.
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…