ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 88

Question 436

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What is the role of external torque in changing angular momentum along the axis?

It changes perpendicular component
It stops rotation
It balances gravity
It changes the axial component of angular momentum

Question 437

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In acrobatic performances, how is angular momentum conserved?

By pushing air
By changing mass
By applying external torque
By adjusting body posture to change moment of inertia

Question 438

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Which equation is derived from the work-kinetic energy route in rotational motion?

F = ma
P = Fv
τ = Iω
τ = Iα

Question 439

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What causes the change in angular speed in the chair experiment?

Change in torque
Change in gravity
Change in friction
Change in moment of inertia

Question 440

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When is τ = Iα applicable?

When ω is constant
When α is zero
When torque is zero
When moment of inertia is constant