Forces / Learn
Learn physics
Everything Forces has built so far, in one place: eight interactive labs, three animated explainers, a 151-question quiz, four practice games and a constants reference — covering classes 9 to 12. Every lab now has its own step-by-step lessons built in, organised by class — read a step, then try it right there in the sandbox and watch the real formula respond, the same "concept, then practice" shape as Re-agents' learn hub.
Mechanics playground
Projectile motion, free fall, pendulum/SHM and collisions — sliders for mass, angle, velocity and gravity, with live v-t and s-t graphs.
labCircuit builder
Build a custom series or parallel circuit with up to 15 resistors, bulbs and capacitors, set the battery's internal resistance, and watch the current actually flow.
labOptics lab
Draggable ray diagrams for concave/convex mirrors and lenses, with a live two-ray construction and real/virtual/erect/inverted classification.
labWaves & sound lab
Standing waves on a string, two-source interference with a draggable detector, and the Doppler effect.
labRotational motion sandbox
Torque and balance, a rolling-shapes race, and a spinning disk that conserves angular momentum.
labThermodynamics visualizer
A kinetic-theory gas box with pressure measured from real particle collisions, and a PV-diagram piston sandbox for all four classic processes.
labElectricity & magnetism lab
Draggable charges with real traced field lines, a moving magnet inducing EMF, and a live R-L-C phasor diagram.
labModern physics
Bohr's hydrogen orbits, the photoelectric effect, and semiconductor energy bands — animated diagrams with the key formulas.
explainerLogic gate lab
Wire up to 10 AND/OR/NOT/NAND/NOR/XOR/XNOR gates together and press Check answer for a slow, fully-explained reveal of the output — plus 10 preset circuits and JEE/NEET-style practice questions.
labPhysics quiz
151 questions across classes 9 to 12 — pick a level, answer 10 at random, and get an explanation for every answer.
quizPhysics mini-games
Free Body Diagram, Circuit Match, Unit Rush, Ray Tracer, Wave Reader, Logic Rush, Torque Balance, Gas Process, EM Quiz and Quantum Quiz — ten quick drill games, scores saved on this device.
gamesPhysics constants
Speed of light, gravitational constant, Planck's constant and more — 2019 SI values with a note on where each is used.
referenceHistory of physics
A scrolling timeline from Aristotle to the transistor — 25 scientists and experiments, each animated, with links into the lab that covers what they discovered.
historyBy class
Motion & Force
- Distance, displacement, speed, velocity — Mechanics playground
- Equations of motion, graphs — Mechanics playground
- Newton's three laws — Mechanics playground, Free Body Diagram
- Gravitation & free fall — Mechanics playground
- Work, energy, power — Rotational motion sandbox
Light, Electricity & Magnetism
- Reflection & refraction, mirrors, lenses — Optics lab, Ray Tracer
- The human eye — Optics lab
- Electric current, potential, resistance — Circuit builder, Unit Rush
- Series & parallel circuits — Circuit builder, Circuit Match
- Magnetic effects of current — Electricity & magnetism lab
Mechanics, Thermodynamics & Waves
- Kinematics in 2D, projectile motion — Mechanics playground
- Circular motion, SHM & pendulum — Mechanics playground
- Work-energy theorem, collisions — Mechanics playground
- Rotational motion, torque & angular momentum — Rotational motion sandbox
- Kinetic theory & thermodynamics — Thermodynamics visualizer
- Waves & sound — Waves & sound lab
Electrostatics, Current, Optics, Modern Physics & Digital Electronics
- Electric fields & potential — Electricity & magnetism lab
- Current electricity, circuits — Circuit builder
- Ray & wave optics — Optics lab, Waves & sound lab
- Electromagnetic induction & AC — Electricity & magnetism lab
- Photoelectric effect, atoms & nuclei — Modern physics
- Logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR) — Logic gate lab