Physics Playgrounds vs Physics Playground App

Physics Playground is an interactive science app featuring 38 real physics experiments across mechanics, waves, optics, electricity, magnetism, thermodynamics, quantum physics, fluids, electromagnetism, nuclear physics, and astrophysics. Every experiment runs as a live simulation on your screen. You control it directly with your finger — drag the pendulum, aim the projectile, position charges in the electric field, adjust wave frequencies, and watch the physics respond in real time. HOW IT WORKS Touch the canvas to grab and interact with the simulation. Every experiment responds to your input — there is no right or wrong way to explore. Adjust variables like gravity, mass, length, and velocity using the built-in sliders and watch the results change instantly. For a truly hands-free experience, enable the camera and control experiments with your hand in the air. The app uses on-device AI to track your hand movements in real time — no data is sent to any server. EXPERIMENTS INCLUDED Mechanics: Simple Pendulum, Projectile Motion, Elastic Collision, Spring Oscillator, Gravitational Field, Inclined Plane, Circular Motion, Torque and Levers Waves and Sound: Wave Interference, Standing Waves, Doppler Effect, Sound Waves Optics: Snell's Law and Refraction, Lens and Focal Point, Double Slit Experiment, Diffraction Grating Electricity and Magnetism: Electric Field Visualizer, Magnetic Field Lines, Electromagnetic Induction, RC Circuit Thermodynamics: Ideal Gas Law, Heat Transfer, Carnot Cycle, Entropy and Disorder Quantum Physics: Quantum Tunneling, Wave Particle Duality, Photoelectric Effect, Heisenberg Uncertainty Fluids: Bernoulli Principle, Archimedes and Buoyancy, Fluid Dynamics, Surface Tension Nuclear Physics: Nuclear Fission, Nuclear Fusion Astrophysics: Orbital Mechanics, Black Hole Gravity, Stellar Evolution, Escape Velocity CHALLENGES Every experiment has a built-in challenge that teaches the key physics concept behind the simulation. Complete the challenge to earn a star. Track your progress across all 38 experiments from the progress screen and see how many you have mastered. REAL PHYSICS LAWS Each simulation is built on actual physics equations. The app displays the governing laws for every experiment so you can connect what you see on screen to real formulas. Variables like gravity, mass, angle, frequency, and charge are all adjustable, letting you run the same experiment under different conditions. WHO IS IT FOR Physics Playground is designed for students, teachers, and anyone curious about how the physical world works. It is suitable for middle school through university level and makes an excellent companion to classroom learning. No prior physics knowledge is required to enjoy the simulations. The app is rated 4 and above with no objectionable content. PRIVACY Physics Playground signs you in anonymously. No name, email address, or personal information is ever collected or required. Your experiment progress is saved to the cloud using your anonymous account. Camera processing happens entirely on your device, and no images or videos are stored or transmitted. Full privacy policy: https://physics-playground-24c5e.web.app/privacy

Physics & Math, made playable. Touch a slider and watch the equation rewrite itself. Tilt a ramp and feel the friction. Aim a cannon, dial in a Lorentz factor, swing a double pendulum into chaos. Every idea has a hands-on playground that responds in real time. One app. The entire universe of physics and math - from counting blocks to category theory, from throwing a ball to the Theory of Everything. WHAT'S INSIDE • 55+ topics across Physics and Math, organized by tier - Classical, Modern, Frontier, plus Math Foundations, Intermediate, and Frontier. • A live difficulty slider that rewrites every explanation in real time for Child, Teen, Undergrad, or PhD. • Interactive playgrounds for every topic. Sliders, simulations, force diagrams, and SpriteKit physics that actually behave like physics. • Mini-games that earn you badges - predict chaos, balance crates, dial in gamma, win at quantum measurement, escape a black hole. • A concept map that shows how every idea connects to every other - drag, zoom, tap a node and dive in. • A constellation of earned badges that grows as you master the subjects. PHYSICS, FROM "WHAT IF" TO "WHY" Newton's Laws. Projectile motion. Energy & momentum. Orbits. Waves. Pendulum chaos. Thermodynamics. Fluids. Optics. Electromagnetism. Special Relativity. Spacetime. Photoelectric effect. Double-slit. Heisenberg uncertainty. Quantum tunneling. Stern-Gerlach spin. Atomic orbitals. The Standard Model. Statistical mechanics. Condensed matter. Lasers. Black holes. The Big Bang. String theory. Loop quantum gravity. Entanglement. Quantum computing. And the prize at the end - a Theory of Everything badge for mastering them all. MATH THAT BUILDS Counting → addition → subtraction → multiplication → division → fractions → decimals → percents and ratios → the number line. Then algebra, geometry, trigonometry, functions, exponents and logs, sequences, probability, and statistics. Then limits, derivatives, integrals, linear algebra, differential equations, complex analysis, topology, and category theory. HOW IT WORKS Pick a topic. Read a leveled explanation that matches your background. Scroll to the live equation strip and watch the variables update as you drag. Play with the simulator. Take on the challenge, earn the badge. Tap a related topic to follow the thread - every page links to its prerequisites and to the ideas it unlocks. BUILT FOR FOCUS • Beautiful, calm visuals on a deep-space backdrop. • Smooth 60fps animations, gentle haptics, and confetti for the wins. • No ads. No accounts. No tracking. • Designed for iPhone and iPad with full split-view support. • Offline-first - everything is on device. WHO IT'S FOR Curious kids who want to know what makes things go. Students who'd rather feel an equation than memorize it. Self-learners coming back to math years later. Grad students looking for the cleanest one-page mental model of a topic. Teachers and parents who want a single shareable demo for any concept that comes up. If you've ever wondered why airplanes turn the way they do, why time slows down at high speeds, why a pendulum can be predictable AND chaotic, or what a quantum bit actually is - this is the app. One scroll. One slider. One badge at a time. The universe, unlocked.