Align periodic signals
Period measures the time between repeats; frequency counts repeats per second. Phase shifts the signal along time without changing its period. Watch the current-point marker as the same pattern repeats.
Run this experiment →Physics · Class 11
Oscillations
7 free physics experiments and lesson notes for Oscillations, with model limits, worked examples and Tamil explanations.
Project circular motion into SHM
A rotating point projects onto a diameter as simple harmonic motion. The projection slows at the endpoints and is fastest at the centre. Its acceleration always points toward the equilibrium position.
Run this experiment →Twist a torsional pendulum
Angular SHM occurs when torque is proportional and opposite to angular displacement. A larger rotational inertia gives a longer period; a stronger torsion constant gives a shorter period.
Run this experiment →Change a mass and spring
A stretched spring pulls the mass toward equilibrium; a compressed spring pushes it back. The restoring force produces SHM. Mass and stiffness determine period, while amplitude determines the extent of the oscillation.
Run this experiment →Track energy through one oscillation
At turning points the oscillator stores all energy as spring potential energy. At equilibrium it has maximum kinetic energy. Their sum stays constant even though each part changes twice during a complete oscillation.
Run this experiment →Tune a small-angle pendulum
At small angles the pendulum has a restoring acceleration proportional to angular displacement. A longer string increases period, while greater gravity decreases it. The ideal small-angle period is independent of bob mass.
Run this experiment →Drive an oscillator near resonance
A periodic force drives a damped oscillator most strongly near its resonance. Damping broadens and lowers the response peak. The settled motion lags behind the driving force; free oscillations decay with an exponential envelope.
Run this experiment →