ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 348

Question 1736

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How does the conservation of angular momentum compare to linear momentum conservation?

They are unrelated
Angular momentum is always conserved
Both occur when net external influence is zero
Linear momentum depends on torque

Question 1737

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What is the significance of separating F_i into F_i_ext and F_i_int?

To calculate kinetic energy
To find center of mass
It allows identification of external influences on angular momentum
To simplify numerical computation

Question 1738

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What condition must be satisfied for τ_int to be zero?

All particles are at rest
The system is spherical
Internal forces are central and obey Newton’s third law
The net external force is zero

Question 1739

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Why is Eq. (6.28b) considered a generalization of the single-particle case?

It includes gravitational forces
It uses vector notation
It applies to systems with multiple particles and internal motion
It has more variables than the single-particle case

Question 1740

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What does the equation dL/dt = τ_ext imply about the source of angular momentum change?

Both internal and external torques affect L
Only internal torques affect L
Frictional forces are the main source
Only external torques can change the total angular momentum