When I took classical mechanics we were given definitions for an(adsbygoogle = window.adsbygoogle || []).push({});

object's moment of inertia, which I understand to be a scalar quantity that

describes that objects tendency to resist rotation about a fixed axis either

about, or some distance from its center of mass.

I was recently reading about how an object's moment of inertia can also be described as atensorquantity when the axis of rotation is not fixed, but arbitrary.

I have not had much experience with tensors, the extent of my knowledge is mostly conceptual at this point, so I will not be able to decipher the math, however, I was hoping somebody could give me a more conceptual description of what this means, specifically rotation about an arbitrary axis, I'm have a hard time wrapping my head around that. Anybody have an example?

Cheers

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Moment of inertia as a tensor

**Physics Forums | Science Articles, Homework Help, Discussion**