| __Kids.Net.Au - Encyclopedia > Moment of inertia__ *(Site not responding. Last check: )* |

| | **Moment** of **inertia** is rotational **inertia**, i.e., **moment** of **inertia** is to rotational motion as mass is to linear motion. |

| | The **moment** of **inertia** for an object depends on its shape and distribution of mass within that shape: the more the mass is on the outside with respect to the axis of rotation, the larger the **moment** of **inertia**. |

| | The **moment** of **inertia** is often represented by the letter I. For an bunch of infinitely small particles with mass $m\_n$, and distance $r\_n$ from one particular axis, the **moment** of **inertia** for that bunch of particles around that axis will be: |

| www.kids.net.au /encyclopedia-wiki/mo/Moment_of_inertia (234 words) |