Which of the following quantities is conserved in an isolated system when no ext

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Question: Which of the following quantities is conserved in an isolated system when no external torques act?

Options:

Correct Answer: Angular momentum

Solution:

In an isolated system with no external torques, angular momentum is conserved.

Which of the following quantities is conserved in an isolated system when no external torques act?

Which of the following quantities is conserved in an isolated system when no external torques act?

Step 1: Understand what an isolated system is. An isolated system is one where no external forces or torques are acting on it.
Step 2: Learn about torques. A torque is a force that causes an object to rotate.
Step 3: Recognize that when no external torques are acting, the system's internal motions do not affect its overall rotation.
Step 4: Identify what is conserved in such a system. In physics, 'conserved' means that a quantity remains constant over time.
Step 5: Know that in the absence of external torques, the quantity that remains constant is angular momentum.
Step 6: Conclude that in an isolated system with no external torques, angular momentum is conserved.

No concepts available.