From a simple falling ball to a full n-body solar system with relativistic corrections — PHYSIX handles it all in one drag-and-drop interface.
Every simulation starts by dragging an object onto the canvas. No typing coordinates, no config files.
General-purpose particle. Set mass, radius, restitution, charge, material, and initial velocity.
Rigid rectangular body with rotation. Useful for incline and collision experiments.
Variable-mass body with configurable thrust vector, exhaust velocity, and fuel load.
High-mass body with luminosity. Generates gravitational and radiation pressure forces.
Preset mass & radius ratios for all solar system bodies. Toggle true-scale mode.
Schwarzschild radius overlay, gravitational lensing visual, and tidal disruption forces.
Ultra-dense body. Simulate binary pulsars and gravitational wave inspiral.
Elliptical orbit presets, sublimation tail toggle, and Oort cloud starting conditions.
Anchored reference body for surface-level experiments. Exports g = 9.80665 m/s².
Uniform g, Newton's universal gravitation (1/r²), and Schwarzschild GR corrections. Apply to any body independently.
Stokes drag, turbulent drag (Cd·A), buoyancy, and viscosity. Configure air density or liquid medium.
Hookean spring (k, L₀, damping), rigid rod, constant thrust, and user-scripted custom forces.
Coulomb (kq₁q₂/r²), Lorentz (q·v×B), uniform E field, magnetic braking (Lenz's law).
Temperature-dependent drag, blackbody radiation pressure, and ablation mass loss for re-entry scenarios.
Strong nuclear (Yukawa), weak decay chain, and fission fragment recoil. Useful for particle physics visualisations.
Write any F(t, r, v) expression in the formula editor. Supports all standard math functions and body properties.
All presets are curriculum-linked. BINAS, IB Physics, GCSE, and AP curriculum references are shown in the notification bar on load.
| Category | Preset | Physics Covered |
|---|---|---|
| Solar System | Full Solar System | n-body gravity, orbital mechanics, Kepler's laws |
| Solar System | Earth–Moon | tidal forces, Roche limit, orbital resonance |
| Stellar | Supernova (E=mc²) | mass-energy equivalence, shockwave propagation |
| Stellar | Black Hole | Schwarzschild radius, escape velocity, time dilation |
| Gravity Lab | Free Fall (Galileo) | uniform acceleration, air resistance comparison |
| Gravity Lab | Rolling Incline | friction, normal force, rotational inertia |
| Oscillations | Spring–Mass | Hooke's law, SHM, resonance frequency |
| Oscillations | Double Pendulum | chaos theory, sensitive dependence on initial conditions |
| Oscillations | Newton's Cradle | conservation of momentum p=mv, elastic collision |
| Projectiles | Projectile 45° | kinematic equations, maximum range, drag correction |
| Projectiles | Rocket Launch | Tsiolkovsky equation, variable mass, thrust |
| EM Lab | Coulomb Orbits | Coulomb's law, Bohr model, electrostatic force |
| EM Lab | Cyclotron | Lorentz force, circular motion, r=mv/qB |
| EM Lab | Magnetic Brake | Lenz's law, induced EMF, eddy currents |
Click-drag to measure any distance on canvas in metres, km, AU, or light-years depending on scale.
Three-point angle measurement. Useful for incline angles and orbit eccentricity.
Lock the viewport to any body. Essential for watching projectile arcs or orbital paths from the reference frame of the body.
12 plot types: position, velocity, acceleration, kinetic/potential/total energy, angular momentum, temperature, charge, and more.
Topbar shows running totals for E_kin, E_pot, and E_total. Conservation of energy is directly observable.
Simulation clock shows t in seconds, minutes, hours, days, years, or Gyr — automatically scaled to scenario.