Mechanics of Rigid Bodies Quiz

Scalar quantities have only magnitude, and distance is the measure of how much ground an object has covered during its motion.

The moment of force, or torque, is the measure of the tendency of a force to rotate an object about an axis.

Torque is measured in Newton-meters, representing the force applied at a distance.

Newton's First Law states that an object at rest will stay at rest, and an object in motion will stay in motion with a constant velocity unless acted upon by a net external force.

The center of mass is the point where the system's mass is concentrated; it is the weighted average position of all particles.

Moment of inertia quantifies the distribution of mass in a rotating object relative to its axis; it involves both mass and distance from the axis.

Torque, the rotational force, is directly proportional to the angular acceleration it produces in an object.

In the absence of external forces, the total linear momentum of a system remains constant during a collision.

A system is in rotational equilibrium when the net torque acting on it is zero, and its angular velocity remains constant.

Translational equilibrium occurs when there is no net force or torque acting on a rigid body, resulting in a constant velocity.

Linear velocity and angular velocity are connected by a direct proportionality in rotational motion.

The parallel-axis theorem simplifies the calculation of the moment of inertia for an axis parallel to the axis through the center of mass.