Question

in addition to the amount of mass present, the ____ of that mass is also needed to determine the amount of torque needed to change angular velocity.
a) density
b) weight
c) moment of inertia
d) location

Explanation:

Torque relates to angular acceleration via $\tau = I\alpha$, where $I$ (moment of inertia) depends on both total mass and the distribution/location of that mass. Density, weight, and location alone do not capture the combined mass distribution needed to find torque for angular velocity change; moment of inertia encapsulates both mass amount and its spatial arrangement.

Answer:

C) moment of inertia