Physics Articles
Deep, well-structured guides to every core physics concept — from Newton's laws to quantum mechanics. Every article explained clearly and connected to related calculators and simulations.
Projectile Motion: Definition, Formulas, Equations, and Real-Life Examples
Learn what projectile motion is, its key formulas and equations, how to calculate time of flight, maximum height, and range, with solved examples and real-life applications.
Transverse Waves: Definition, Properties, Equations & Examples
Learn what transverse waves are, their 5 key properties, the wave equation (v = fλ), polarization, real-life examples, and solved problems – all explained simply.
Wave Speed, Frequency & Wavelength – The Wave Equation (v = fλ)
Learn the wave equation v = fλ. Understand wave speed, frequency, and wavelength with simple definitions, solved examples, the electromagnetic spectrum, and real-life applications.
Speed of Light Exact Value in m/s, km/h, mph & How It Was First Measured
The speed of light is exactly 299,792,458 m/s — about 1.08 billion km/h. Learn unit conversions, dimensional formula, speed in water and glass, historical measurements from Rømer to lasers, and why c is the universe's speed limit.
Newton's Third Law of Motion | Definition, Formula, Examples & Applications
Newton's third law of motion: for every action force, there is an equal and opposite reaction force on a different object. Formula, worked numerical problems, real-world applications, misconceptions, and FAQs.
Newton's Second Law of Motion (F = ma): Definition, Formula & Derivation
Newton's second law states F = ma — net force equals mass × acceleration. Learn the definition, formula derivation from momentum, worked examples, free-body diagrams, and real-world applications.
The Ideal Gas Law (PV = nRT): Formula, Derivation & Solved Examples
Learn the ideal gas law PV = nRT with full derivation, 7 worked examples, gas constant R values, and real-world applications from engines to scuba diving.
Newton's Laws of Motion — All 3 Laws Explained Simply (2026 Guide)
Learn the three laws of motion by Isaac Newton. This easy guide covers inertia, F = ma, and action-reaction with real examples, diagrams, and problem-solving tips.
Ohm's Law (V = IR): Formula, Triangle, Power Wheel & Examples
Learn Ohm's Law formula V = IR, the triangle, power wheel, worked examples, and real-world applications. Covers series, parallel circuits, and power calculations.
SUVAT Equations: All 5 Formulas, Derivations & Examples
Master the 5 SUVAT equations for constant acceleration. Learn derivations, sign conventions, 2D projectile applications, and step-by-step problem-solving.
Longitudinal Waves: Definition, Diagram, Examples & Properties
Learn what longitudinal waves are with a simple definition, labeled diagram, real-life examples, wave equation, and key differences from transverse waves.
Newton's First Law of Motion – Law of Inertia Explained with Examples
What is Newton's first law of motion? Learn the law of inertia, its formula (ΣF = 0), types of inertia, real-life examples, and simple experiments. Easy guide for students.