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What is the effect of applying a torque to an object?

The object experiences angular acceleration.

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What is the effect of applying a torque to an object?

The object experiences angular acceleration.

What happens when a spinning skater pulls their arms inward?

Their moment of inertia decreases, and their angular velocity increases (angular momentum remains constant).

What is the effect of a net torque acting on an object over time?

The object's angular momentum changes.

What happens when angular impulse is applied to a rotating object?

The object's angular momentum changes.

What is the effect of increasing the distance (r) of a point object from a reference point on its angular momentum?

The angular momentum increases (assuming other variables remain constant).

What happens to the angular momentum if no external torque acts on a system?

The angular momentum of the system remains constant (conservation of angular momentum).

What is the difference between linear impulse and angular impulse?

Linear Impulse: Change in linear momentum due to a force over time. | Angular Impulse: Change in angular momentum due to a torque over time.

What is the difference between linear momentum and angular momentum?

Linear Momentum: Mass in motion in a straight line. | Angular Momentum: Tendency of an object to keep rotating.

How do you calculate angular momentum for a rigid object?

Identify the moment of inertia (I). 2. Determine the angular velocity ( $\omega$ ). 3. Use the formula: $L = I\omega$ .

How do you calculate angular momentum for a point object?

Determine the distance (r) from the reference point. 2. Find the mass (m) and velocity (v) of the object. 3. Measure the angle ( $\theta$ ) between r and v. 4. Use the formula: $L = rmv \sin \theta$ .

How is angular impulse calculated?

Determine the torque ( $\tau$ ) applied. 2. Measure the time interval ( $\Delta t$ ) over which the torque is applied. 3. Use the formula: Angular Impulse = $\tau \Delta t$ .

How do you calculate the change in angular momentum?

Determine the final angular momentum ( $L_f$ ). 2. Determine the initial angular momentum ( $L_i$ ). 3. Use the formula: $\Delta L = L_f - L_i$ .

How do you determine angular impulse from a torque vs. time graph?

Obtain a torque vs. time graph. 2. Calculate the area under the curve of the graph. 3. The area represents the angular impulse.