🎓 Ages 15–18 · Grades 9–12 · Physics

ForceForge

Physics clicks when you predict what will happen and then check yourself. Here you read a scenario, commit to a number — a speed, a force, an energy — and a deterministic engine computes the real answer and shows the formula behind it. No jargon, nothing sent anywhere, and a wrong prediction is just where the intuition starts.

The Prediction Lab ★ the main event

Read a scenario across kinematics, forces, momentum, energy, circular motion, oscillation or projectiles — predict the number, then a pure engine computes it exactly and walks the formula. Because it’s computed, not animated, the answer is always right.

Open the Prediction Lab →

The Collision Lab 💥 two-body predict-the-crash

Two objects meet on a frictionless track. Predict BOTH final velocities, then the bench resolves them and shows the momentum it always conserves — and whether the kinetic energy survived (elastic) or was lost (inelastic). Watch the classics fall apart: heavier doesn’t always “win,” equal masses swap, a light cart bounces back.

Open the Collision Lab →

Who you’ll meet

Not mascots — everyday physicists, each showing one idea in action. You’ll run into them across the lab and the kits.

  • Bexley — tracks position, velocity, and acceleration over time (kinematics)
  • Torin — balances the forces to find the acceleration (Newton’s laws)
  • Colt — conserves momentum through a collision
  • Suki — follows the energy — kinetic, potential, conserved (work & energy)
  • Koa — keeps the force pointed inward for circular motion
  • Elara — reads period, frequency, and wavelength (oscillation & waves)
  • Ravel — traces charge and current through a circuit
  • Bronte — links a changing field to an induced current (induction)
  • Marisol — the mentor — predict, compute, then reason about why

Check what you know

Sixteen short kits — kinematics, Newton’s laws, friction, momentum, collisions, energy, circular motion, gravitation, SHM, waves, sound, electricity, magnetism — anchored to HS physics. Hints when you want them; progress stays on this device.

1. Kinematics (1D) 1D kinematics — position, velocity, acceleration, and graphs · 25 questions 2. Vectors & 2D Motion Vectors and two-dimensional (projectile) motion · 25 questions 3. Newton's Laws Newton's laws of motion — net force and acceleration · 25 questions 4. Friction & Forces Friction, normal force, and free-body analysis · 25 questions 5. Momentum & Impulse Momentum and impulse · 25 questions 6. Collisions Collisions and conservation of momentum · 25 questions 7. Work & Energy Work, kinetic energy, and potential energy · 25 questions 8. Conservation of Energy Conservation of energy — energy transforms, total conserved · 25 questions 9. Circular Motion Circular motion and centripetal force · 25 questions 10. Gravitation Universal gravitation and orbits · 25 questions 11. Oscillation / SHM Oscillation and simple harmonic motion · 25 questions 12. Waves Wave properties — wavelength, frequency, and speed · 25 questions 13. Sound Sound — pitch, intensity, and resonance · 25 questions 14. Electric Fields & Circuits Electric charge, current, and Ohm's law · 25 questions 15. Magnetism & Induction Magnetism and electromagnetic induction · 25 questions 16. Capstone: Predict the System Capstone — integrating forces and energy on real systems · 25 questions

How it works

ForceForge trusts you — it’s about reasoning with the formulas, not memorizing them, and a wrong prediction is just a place to learn. Every answer is computed by a small deterministic engine (no server, nothing sent anywhere). Your progress is saved only on this device: no accounts, no ads.

Mixed practice — revisit what you've learned A short round that shuffles questions across the kits you've played, brought back when they're ready to review (spaced out so it sticks).