Vernier Caliper Measurement
Physical Measurement
Measure lengths precisely and learn least count — core measurement skills.
Teacher sign inExperiments
Pick a subject, open a lab, and watch ideas move.
28 experiments
Micrometer Screw Gauge
Physical Measurement
Measure wire and sphere diameters with a micrometer and SI units.
Teacher sign inDensity by Displacement
Properties of Fluids
Find density of irregular solids with a measuring cylinder — fluids unit.
Teacher sign inUniform Linear Motion Study
Linear Motion
Plot s–t and v–t graphs and read average speed and acceleration.
Teacher sign inVerifying Newton's Laws
Force and Motion
Cart and masses: see how force, mass, and acceleration connect.
Teacher sign inFree Fall & Measuring g
Linear Motion
Time drops from different heights to estimate gravitational acceleration.
Teacher sign inSimple Pendulum & g
Motion / Mechanics
Change length, measure period, plot L vs T² to find g.
Teacher sign inHooke's Law (Spring)
Force and Motion
Hang masses and watch extension grow linearly with force.
Teacher sign inWork & Energy Conversion
Work and Energy
Track potential-to-kinetic conversion on a ramp — work & energy unit.
Teacher sign inArchimedes’ Principle & Buoyancy
Static Fluids
Compare weight in air vs liquid and verify upward buoyant force.
Teacher sign inLiquid Pressure vs Depth
Static Fluids
See pressure rise with depth and density — static fluids core idea.
Teacher sign inPascal’s Principle & Hydraulic Press
Static Fluids
Watch pressure transmit in a confined liquid — hydraulic press demo.
Teacher sign inViscosity by Stokes’ Method
Dynamic Fluids
Drop a sphere in a viscous fluid and find viscosity from terminal speed.
Teacher sign inBoyle's Law
Gas Laws
At constant temperature: verify that pressure × volume stays constant.
Teacher sign inCharles's Law
Gas Laws
At constant pressure: watch gas volume expand as temperature rises.
Teacher sign inPressure Law (Gay-Lussac)
Gas Laws
At constant volume: explore gas pressure vs absolute temperature.
Teacher sign inVerifying Ohm's Law
Electricity
Vary voltage and current on a resistor and plot the linear V–I relation.
Teacher sign inSeries & Parallel Resistors
Electricity
Build series and parallel circuits and compare equivalent resistance.
Teacher sign inInternal Resistance of a Cell
Electricity
Find emf and internal resistance from a terminal voltage–current graph.
Teacher sign inManual Electric Circuit Builder
Electricity
Build freely with any number of batteries, resistors, and wires; run the circuit and calculate I, V, R, and power.
Teacher sign inKirchhoff's Laws (KCL & KVL)
Electricity
See ∑I = 0 at a junction and ∑V = 0 around a loop with animated overlays.
Teacher sign inMagnetic Field of a Straight Wire
Magnetism
See field direction around a current-carrying wire — right-hand rule.
Teacher sign inElectromagnetic Induction
Magnetism
Move a magnet through a coil and watch induced current — Faraday’s law.
Teacher sign inFocal Length of a Convex Lens
Waves & Light
Form real images on a screen and determine focal length experimentally.
Teacher sign inConcave Mirror Images
Waves & Light
Move the object and explore image types for a concave mirror.
Teacher sign inRefraction & Refractive Index
Waves & Light
Send a ray through a glass slab and verify Snell’s law.
Teacher sign inWave Interference
Waves
Overlapping waves — constructive and destructive patterns live.
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