Chapter 14 Key Terms:

angular impulse	change in angular momentum equal to the product of torque and the time interval over which the torque acts
centripetal force	force directed toward the center of rotation of any rotating body
moment of inertia	inertial property for rotating bodies that increases with both mass and the distance the mass is distributed from the axis of rotation
radius of gyration	distance from the axis of rotation to a point where the body's mass could be concentrated without altering its rotational characteristics
principal axes	three mutually perpendicular axes passing through the center of gravity that are referred to respectively as the transverse, anteroposterior, and longitudinal axes
principal moment of inertia	total body moment of inertia relative to one of the principal axes