It changes the object's angular momentum.

Their moment of inertia decreases, and their angular speed increases, conserving angular momentum.

The total angular momentum of the system is conserved.

The angular speed increases to conserve total angular momentum.

It changes the object's angular momentum.

The total angular momentum of a closed system remains constant unless acted upon by an external torque.

Angular impulse is the product of the net torque and the time interval over which it acts. Units are $\text{kg} \cdot \text{m}^2/\text{s}$.

A measure of an object's resistance to changes in its rotation rate. It depends on the mass distribution of the object and the axis of rotation.

A system where no external torques act upon it, allowing angular momentum to be conserved.

The rotational equivalent of linear momentum. For a point particle, it is given by $\vec{L} = \vec{r} \times \vec{p}$, where $\vec{r}$ is the position vector and $\vec{p}$ is the linear momentum.

The object's angular momentum changes. The change is equal to the angular impulse imparted by the torque.

The moment of inertia decreases, and the angular speed increases to conserve angular momentum.

The total angular momentum of the system remains constant.

The final angular velocity of the combined system will be lower than the initial angular velocity of the rotating object, due to the increased moment of inertia. Total angular momentum is conserved.

Their moment of inertia decreases, causing their angular speed to increase, conserving angular momentum.

It creates an angular impulse, changing its rotational motion.