PendulumLab: Pendulum Physics

PendulumLab is a free, fully offline physics laboratory that lets students, teachers, and curious minds explore pendulum motion through a realistic, interactive simulator — no internet connection required.

Adjust real experiment variables — pendulum length, bob mass, starting angle, gravity, and air resistance — and watch an accurate, smoothly animated pendulum respond in real time, powered by a proper RK4 physics engine.

WHY YOU'LL LOVE IT

🔬 Realistic Pendulum Simulator — full control over length, mass, angle, gravity, damping; live period, frequency, angular velocity, and energy readouts.

📊 Interactive Graphs — Angle vs Time, Velocity vs Time, Energy vs Time, Period vs Length, Frequency vs Length.

📋 Data Table & Trials — log and compare multiple trials like a real physics lab notebook.

📚 Plain-Language Formulas — clear explanations of period, frequency, angular frequency, and energy.

💾 Saved Experiments — save, reload, and compare setups, stored privately on your device.

🧠 22-Question Physics Quiz — test what you've learned, with scoring and instant restart.

🌗 Light & Dark Theme — clean Material 3 design.
100% OFFLINE & PRIVATE — no account, no internet, no ads, no analytics, no data collection.

Download PendulumLab and turn your phone into a hands-on pendulum physics lab — anytime, anywhere.