ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 154

Question 766

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What is the rotational analogue of kinetic energy (½mv²)?

Iω
Iω²
½Iω²
τθ

Question 767

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How does doubling the radius affect torque for the same force?

Torque halves
Torque remains same
Torque doubles
Torque quadruples

Question 768

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What is the main advantage of using radians in rotational motion?

They are larger than degrees
They are easier to measure
They make equations simpler and dimensionally consistent
They are used in clocks

Question 769

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What is the dimensional formula of angular acceleration?

[LT⁻²]
[M¹L²T⁻²]
[T⁻²]
[M¹L²T⁻¹]

Question 770

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How is angular displacement related to number of revolutions?

θ = π × rev
θ = rev/2π
θ = 2π × number of revolutions
θ = rev²