Moment of Inertia of Flywheel :Comprising of carefully machined and balanced cast iron wheel and steel spindle is supported on ball bearings in strong iron brackets. The wheel is smoothly painted black and is marked with a line. A pointer is fixed to one of the brackets. Diametric hole is drilled in the shaft to take a pin and cord. The base is provided with holes so that the apparatus can be fixed to wall. Complete with cord and hook.