Moment Of Inertia Of Flywheel 

Aim : 

The aim of this experiment is to measure the moment of inertia of a flywheel.


Diagram : 



Materials : 

 A heavy flywheel mounted on an axle on suitable bearings.
 A ruler Vernier calipers
 Thin cord Stopwatch


Procedure :


 Set up the apparatus as shown in the diagram and allow the weight to fall a height h.
 The length of twine fixed to the small mass should be equal to h, the original height of the small mass above the ground.
 Measure the time (t) it takes to hit the ground.
 Count the number of revolutions (N_{0}) before the weight hits the ground and the further number of revolutions (N_{f}) before the flywheel comes to rest.
 Repeat the procedure several times and obtain mean values for all quantities.
 Measure the diameter of the axle (d) and record the mass of the falling weight (m)


Conclusion : 

You can calculate the moment of inertia (I) of the flywheel from the formula,
I = md^{2} / 4 x N_{f} / [N_{f} +
N_{0}] x ([gt^{2 }/ 2h]  1)
