Which of the following quantities is conserved in a closed system with no extern
Practice Questions
Q1
Which of the following quantities is conserved in a closed system with no external torques?
Linear momentum
Angular momentum
Energy
All of the above
Questions & Step-by-Step Solutions
Which of the following quantities is conserved in a closed system with no external torques?
Correct Answer: Angular momentum
Step 1: Understand what a closed system is. A closed system means that no matter or energy is entering or leaving the system.
Step 2: Learn about torques. A torque is a force that causes an object to rotate. If there are no external torques, it means that nothing from outside is affecting the rotation of the system.
Step 3: Know what angular momentum is. Angular momentum is a measure of how much motion an object has while it is rotating.
Step 4: Remember the principle of conservation. In physics, when we say something is conserved, it means that it stays the same over time.
Step 5: Combine the information. Since we have a closed system with no external torques, the angular momentum does not change. Therefore, angular momentum is conserved.
