ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 74

Question 366

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What is the relationship between torque and angular acceleration for constant I?

Inversely proportional
Exponential
No relationship
Directly proportional

Question 367

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How does symmetry simplify rotational analysis?

By reducing mass
By increasing speed
By aligning angular momentum with the rotation axis
By decreasing torque

Question 368

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What is the source of the change in rotational kinetic energy during arm movement?

External torque
Gravitational pull
Frictional force
Internal work done by muscles

Question 369

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What is the condition under which τ = Iα is not valid?

When ω is high
When α is small
When torque is constant
When moment of inertia changes with time

Question 370

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Why can't perpendicular torque change the rotational motion in fixed-axis systems?

Because torque is too small
Because friction absorbs it
Because the axis constrains rotational degrees of freedom
Because gravity cancels it