Classical mechanics, rigid-body dynamics and materials physics in real time. From car suspension and SPH fluid to the chaos of a double pendulum, this category turns Newton's laws into something you can poke, drag and tune in your browser. Each interactive Physics & Mechanics model exposes the forces, friction, restitution and integration methods (Verlet, RK4) that drive real engineering and game-physics solvers, so you build genuine intuition rather than memorising formulae. Explore how energy and momentum are conserved through elastic collisions, how cloth and rope respond to gravity and wind, and how fracture, fluids and oscillations emerge from simple rules. Whether you are revising for A-Level mechanics, studying engineering, or simply curious, you can learn Physics & Mechanics online here, hands-on and free, with no installation and instant visual feedback.
Open a simulation — it runs right in your browser
Articles and tutorials about the algorithms in this category
Collision forces, rigid bodies, and material physics — in real time
Physics and mechanics simulations cover the full breadth of classical dynamics. Rigid-body collisions are resolved with impulse-based physics engines (Cannon-es), spring-mass cloth responds to gravity and wind, and SPH fluid particles compute pressure and viscosity every frame. Each simulation exposes a different facet of Newton's laws, from elastic billiard-ball collisions to the fracture patterns of a Voronoi solid.
Interacting with the parameters — friction, restitution, gravity strength — reveals the sensitivity of physical systems to initial conditions and material properties. These models are the same mathematical foundations used in game engines, engineering CAD software, and industrial crash-test simulations, making them an excellent introduction to applied computational physics.
From an engineering perspective, each simulation is a real-time numerical solver running at 60 fps inside WebGL or Canvas 2D. The Cannon-es pipeline computes contact manifolds, resolves impulse constraints, and integrates velocities each frame — the same architecture used in commercial game engines and robotics simulators. Studying these interactive models is an excellent entry point into game-engine physics programming, rigid-body dynamics, and computational fluid mechanics.
Topics and algorithms you'll explore in this category
5 questions — mechanics, momentum, waves, and more
Common questions about this simulation category
Every Physics & Mechanics simulation on this page runs entirely in your browser, so you can experiment with each interactive Physics & Mechanics model the moment it loads — no downloads, no setup. Drag the sliders to change gravity, friction, stiffness or initial speed and watch the consequences unfold frame by frame. These same impulse-based and particle solvers power real-world applications such as vehicle crash-test simulation, where engineers predict deformation and occupant safety before building a prototype. Use this collection to learn Physics & Mechanics online at your own pace, whether you are revising classical dynamics, exploring fluid behaviour, or building computational-physics intuition for engineering and game development.