Bouncing Ball
Simulation of the ball bouncing off the walls. A playful first look at motion, speed and collisions — suited for middle school and even younger explorers.
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Vector Operations Calculator
Interactive 2D vector calculator — visualize addition, subtraction, and dot products in real time. The standard high-school tool for students learning vector physics.
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Ball Acceleration
Simulate a ball accelerating toward your cursor in real time. Explore velocity and uniform acceleration, a core topic from middle-school physics onward — free online.
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Ball Gravity
Watch a ball fall and bounce under gravity and external forces in real time. Adjust mass, elasticity, and gravitational force to explore Newton's laws — free interactive simulation for high-school physics.
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Spring Mass System Simulator
Explore Hooke's Law and Simple Harmonic Motion interactively. Adjust mass and spring constant to visualize oscillations and energy conservation — an extended high-school (A-Level) topic.
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Simple Pendulum Simulation
Simulate a pendulum and calculate its period and frequency in real time. Explore how length, gravity, and energy are related, in a standard high-school topic — free interactive physics tool.
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Projectile & Parabolic Motion
Simulate projectile motion and predict trajectory, range, and max height instantly. A staple of high-school kinematics — interactive parabolic motion calculator, free online.
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Inclined Plane
Simulate a block sliding down an inclined plane with friction. Adjust angle, mass, and surface to explore forces and Newton's laws — a core high-school dynamics experiment.
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Circular Motion
Simulate uniform circular motion in real time. Visualize velocity and centripetal acceleration vectors while adjusting radius and speed — an extended high-school to first-year university topic.
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Three Body Problem
Simulate a classic physics problem of three bodies operating under the gravity of each other. A numerically advanced topic aimed at university level (and keen high-school students).
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Horizontal Spring
A spring attached to the left wall with a draggable mass. Explore Hooke's Law and oscillation on a horizontal plane — approachable from middle school, standard in high school.
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Double Pendulum
Simulate a double pendulum and explore chaotic motion. Watch how small changes in initial conditions lead to completely different trajectories — a classic university-level example of chaos theory.
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1D Collision simulation
Simulate 1D elastic collisions with velocity vectors, momentum, and kinetic energy visualization — a core momentum topic in high-school physics.
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Browser Performance & Stress Test
Push your browser to its limits with this physics-based stress test. Benchmark your device's rendering performance with hundreds of simultaneous physics simulations.
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Pi From Collisions
Simulate two colliding blocks of different masses to derive pi. A beautiful conservation-law puzzle for university students (and gifted high-schoolers): adjust the mass of the larger block by a power of 100 to see further precision of pi.
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Trigonometric Circle
Interactive unit circle with a draggable angle θ. Visualize sin, cos, tan, cot, sec and csc as circle segments, watch the generalized wave A·sin(ωθ+φ) plot in real time, and trace the inverse functions arcsin, arccos, arctan and arccot — a bridge from middle-school geometry to high-school trig.
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Ray Tracing
Follow a single ray of light from a camera into a 3D scene and watch a real ray tracer colour each pixel. Drag the camera, sphere and light to see the ray–sphere quadratic, Lambert's cosine law, the inverse-square law, shadows and the law of reflection update live.
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Kirchhoff's Circuit Laws
Build and solve DC circuits online: single loop, series, parallel and a two-loop network with two cells. Watch charge flow, drag a voltmeter and an ammeter onto the circuit, and see Kirchhoff's current and voltage laws balance to zero in real time.
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