https://phyclub.com/ Physics explained simply for students: Newton’s laws with everyday examples, projectile motion formulas with a free calculator, and why the sky is blue. en Mon, 28 Sep 2026 08:00:00 GMT https://phyclub.com/newtons-laws-of-motion/https://phyclub.com/newtons-laws-of-motion/Sun, 27 Sep 2026 08:00:00 GMTNewton’s first, second and third laws of motion explained simply, with everyday examples, the F = ma formula, worked problems and common misconceptions. https://phyclub.com/projectile-motion-calculator/https://phyclub.com/projectile-motion-calculator/Sun, 27 Sep 2026 08:00:00 GMTProjectile motion explained with a calculator: range, maximum height and time of flight formulas, a worked example and why 45 degrees gives the longest range. https://phyclub.com/why-is-the-sky-blue/https://phyclub.com/why-is-the-sky-blue/Sun, 27 Sep 2026 08:00:00 GMTWhy the sky is blue, explained simply: how sunlight scatters off air molecules, why short wavelengths scatter more, red sunsets and why it isn’t violet. https://phyclub.com/kinetic-vs-potential-energy/https://phyclub.com/kinetic-vs-potential-energy/Sun, 27 Sep 2026 08:00:00 GMTKinetic and potential energy explained: formulas, units, everyday examples, energy conversion on roller coasters and pendulums, and a quick energy calculator. https://phyclub.com/ohms-law-calculator/https://phyclub.com/ohms-law-calculator/Sun, 27 Sep 2026 08:00:00 GMTOhm’s law explained with a free calculator: V = IR, how to find voltage, current or resistance, power in circuits, worked examples and common mistakes. https://phyclub.com/free-fall-calculator/https://phyclub.com/free-fall-calculator/Sun, 27 Sep 2026 08:00:00 GMTFree fall explained with a calculator: time to fall, impact speed and distance fallen, the equations of motion with g = 9.81 m/s², examples and air resistance. https://phyclub.com/momentum-explained/https://phyclub.com/momentum-explained/Sun, 27 Sep 2026 08:00:00 GMTMomentum explained simply: p = mv, conservation of momentum in collisions and explosions, impulse and why crumple zones and airbags work, with worked examples. https://phyclub.com/centripetal-force/https://phyclub.com/centripetal-force/Sun, 27 Sep 2026 08:00:00 GMTWhat centripetal force is, the formula F = mv²/r, what provides it in cars, planets and fairground rides, why “centrifugal force” feels real, and examples. https://phyclub.com/speed-velocity-acceleration/https://phyclub.com/speed-velocity-acceleration/Sun, 27 Sep 2026 08:00:00 GMTSpeed, velocity and acceleration explained: scalars vs vectors, formulas, units, reading distance-time and velocity-time graphs, and worked examples. https://phyclub.com/how-rainbows-form/https://phyclub.com/how-rainbows-form/Sun, 27 Sep 2026 08:00:00 GMTHow rainbows form: refraction, dispersion and reflection inside raindrops, why the colours appear in order, why rainbows are arcs and double rainbows. https://phyclub.com/snells-law-refraction/https://phyclub.com/snells-law-refraction/Sun, 27 Sep 2026 08:00:00 GMTRefraction and Snell’s law explained: why light bends between materials, refractive index, n₁ sin θ₁ = n₂ sin θ₂, total internal reflection and a calculator. https://phyclub.com/doppler-effect/https://phyclub.com/doppler-effect/Sun, 27 Sep 2026 08:00:00 GMTThe Doppler effect explained: why a passing siren changes pitch, the formula, redshift and blueshift of light, and uses in radar, medicine and astronomy. https://phyclub.com/work-energy-power/https://phyclub.com/work-energy-power/Sun, 27 Sep 2026 08:00:00 GMTWork, energy and power explained: W = Fd, P = W/t, units like joules and watts, efficiency, and worked examples from lifting boxes to climbing stairs. https://phyclub.com/friction-explained/https://phyclub.com/friction-explained/Sun, 27 Sep 2026 08:00:00 GMTWhat friction is, static vs kinetic friction, the formula F = μN, coefficients of friction, how friction helps and hurts, and examples from brakes to ice. https://phyclub.com/physics-formula-sheet/https://phyclub.com/physics-formula-sheet/Sun, 27 Sep 2026 08:00:00 GMTA printable physics formula sheet: motion, forces, energy, momentum, circular motion, waves, electricity and light, with symbols, units and worked guides.