Moment of inertia

A quantity that depends on mass and how that mass is distributed about the chosen axis, so the same body can have different values for different axes.

A quantity depending on mass and how that mass is distributed about the axis, so a rim-weighted flywheel stores more energy for the same total mass.

Depends on mass and its distribution about the axis, so the same torque produces different angular accelerations for different bodies or axes.

Measures how strongly an object resists changes to its rotational motion, playing the same role in rotation that mass plays in linear motion.

Measures how a body's mass is distributed about a chosen axis and therefore how strongly it resists angular acceleration.

Reducing it increases angular velocity, and increasing it decreases angular velocity, to keep L constant.