Moments of Inertia in Physics
In physics, the moment of inertia measures how resistant an object is to changes in its rotational motion about a particular axis. Here are some of the most common moments of inertia:

Solid cylinder or disk of radius r rotating about its axis of symmetry:

Hollow cylinder of radius r rotating about its axis of symmetry:

Solid sphere of radius r rotating about its center:

Hollow sphere of radius r rotating about its center:

Thin rod of length r rotating about its middle:

Thin rod of length r rotating about one end: