Define moment of inertia

Find the moment of inertia of a sphere about a tangent to the sphere, given the moment of inertia of the sphere about any of its diameters to be 2MR^2//5 , where M is the mass of the sphere and R is the radius of the sphere.

Energy of 484 J is spent in increasing the speed of a flywheel from 60 r.p.m. to 360 r.p.m. find moment of inertia of the flywheel.

Define perpendicular axis theorem of moment of inertia.

Is there any difference between moment of inertia and rotational inertia?

What is the moment of inertia of a ring

Define theorem of perpendicular axes and apply it to find the moment of inertia of a thin uniform circular ring about any diameter.

What is physical significnce of moment of inertia?