AP Conservation of Angular Momentum

More mass = more rotational inertia

The farther the mass is from the point of rotation = more rotational inertia

 $I\ =\ \Sigma mr^2$  is the general equation for rotational inertia.

You will not have to solve for I on the AP Physics 1 Exam, it will always be given to you.

In the absence of a net external torque (the system is isolated) the net angular momentum of a system is conserved.

Moment of Inertia and Angular Velocity change inversely as mass distribution changes.

L is the Angular Momentum

I is the Moment of Inertia

ω is the Angular Velocity