ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 352

Question 1756

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Why is Eq. (6.28b) more general than τ = Iα?

It has more variables
It is easier to use
It applies to non-rigid and non-fixed axis systems
It includes gravity

Question 1757

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What determines the magnitude of torque?

Only r
Only F
Mass and acceleration
r, F, and the angle between them

Question 1758

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How does the conservation of Lx, Ly, Lz relate to symmetry?

They relate to time symmetry
They relate to translational symmetry
They relate to charge symmetry
Each conserved component corresponds to rotational symmetry

Question 1759

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What is the condition for zero net internal torque?

Internal forces are zero
Internal forces are perpendicular
Internal forces are central
Internal forces depend on time

Question 1760

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What is the role of the determinant rule in Example 6.5?

To add vectors
To find magnitude
To integrate motion
To compute the cross product r × F