Everything you need to know about the Moment of Inertia

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Hemichordate

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I never really dealt with moment of inertia before but today I had a question come up on a practice test..

So for moment of inertia, there's the formula I = mr^2 where where m is mass and r is the perpendicular distance to the axis of rotation. Does that just mean that as the mass increases or the radius increases, the moment of inertia gets bigger and its harder to rotate the object?

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I never really dealt with moment of inertia before but today I had a question come up on a practice test..

So for moment of inertia, there's the formula I = mr^2 where where m is mass and r is the perpendicular distance to the axis of rotation. Does that just mean that as the mass increases or the radius increases, the moment of inertia gets bigger and its harder to rotate the object?

Yep you got it.
 
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