Dinglo Simple Pendulum Simulator

Direct control drag and release the bob

Stopwatch0 laps

00:00.00

Angle 20.0°

Bob speed 0.000 m/s

Auto period —

Theory period 2.022 s

Mechanical energy 0.592 J

Lab controls

Live values

String length 1.00 m

0.20 m2.50 m

Bob mass 1.00 kg

0.10 kg5.00 kg

Mass changes force and energy, but not the ideal pendulum period.

Release angle 20°

5°80°

Gravity 9.81 m/s²

Air resistance None

NoneStrong

T = 2π√(L/g)

Reliable at small amplitudes. The simulator solves the full nonlinear equation at every step.

Display toolsToggle

Small-angle T2.006 s

Nonlinear T2.022 s

Measured T—

Difference—

Tension9.22 N

Angular speed0.000 rad/s

At 20°, the exact period is slightly longer than the small-angle prediction. Reduce the angle below 10° and compare.

Angle is plotted against simulated time. Damping causes the peaks to shrink.

Measure at least one complete cycle, then save the current trial.

Trial	Length (m)	Mass (kg)	Gravity (m/s²)	Amplitude (°)	Small-angle T (s)	Exact T (s)	Measured T (s)	Error (%)
No trials recorded yet. Run the pendulum and select “Record trial”.