Forces · Physics labs for class 9–12
Physics you can drag, slide and measure
Interactive labs
Pick a topic. Every lab has live readouts, guided lessons and a link to related quiz questions.
Mechanics
- Projectile motion
- Free fall
- Pendulum & SHM
- Spring–mass SHM
- SHM & circular motion
- Collisions
Work, power & energy
- Work by a force
- Work–energy on a slope
- Loop-the-loop
- Power
Newton's laws & friction
- Force & motion
- Static & kinetic friction
- Block on an incline
- Strings, contact forces & lifts
- Atwood machine
Gravitation
- Orbits & Kepler's laws
- Satellites & escape speed
- Gravity: height, depth, latitude
- Two bodies & centre of mass
Fluids & elasticity
- Pressure & Pascal's law
- Buoyancy & Archimedes
- Continuity & Bernoulli
- Torricelli's jet
- Viscosity
- Surface tension
- Elasticity (Young's modulus)
Refraction & prisms
- Snell's law & TIR
- Slab & apparent depth
- Prism & dispersion
- Optical fibre
- Lens-maker's formula
Magnetism
- Charges in B & E fields
- Velocity selector & spectrometer
- Cyclotron
- Fields of wire, loop, solenoid
- Force on a current
- Torque on a coil & motor
Circuit builder
- Series & parallel circuits
- Kirchhoff's laws
- Charging a capacitor (RC)
- Wheatstone & meter bridge
- Potentiometer
- Ammeter & voltmeter
- Cells & maximum power
- Resistivity & drift velocity
Optics
- Concave mirror
- Convex mirror
- Convex lens
- Concave lens
Waves & sound
- Wave on a string
- Standing waves
- Organ pipes
- Resonance tube
- Beats
- Interference
- Double slit & diffraction
- Doppler effect
- Sound intensity (dB)
Rotational motion
- Torque & balance
- Rolling race
- Angular momentum
Thermodynamics
- Kinetic theory of gases
- PV diagrams
- Heat engines & Carnot cycle
- Heating curve & latent heat
- Mixing (calorimetry)
- Conduction
- Radiation
- Newton's law of cooling
- Thermal expansion
- Molecular speeds
Electricity & magnetism
- Electrostatics
- Magnet & coil induction
- Motional emf
- AC circuits (RLC)
Logic gates
- AND, OR, NOT
- NAND, NOR
- XOR, XNOR
- Build circuits (10 gates)
- Truth tables
Modern physics
- Bohr model
- Photoelectric effect
- Semiconductor bands
- Radioactive decay & half-life
- Radioactive dating
- Alpha, beta, gamma
- Binding energy, fission & fusion
Learn, practise and explore
Lessons to read, questions to test yourself, and games to make it stick.
Learn
Step-by-step lessons grouped by class 9–12, each linked to the lab where you can try it.
Quiz
150+ questions with an explanation for every answer, by class.
Games
Ten quick physics games: free-body diagrams, ray optics, circuits and more.
History
A timeline of 25 experiments and scientists, each with a small animation.