ROTATIONAL MOTION

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

• Iω
• Iω²
• ½Iω²
• τθ

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

• Torque halves
• Torque remains same
• Torque doubles
• Torque quadruples

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

What is the dimensional formula of angular acceleration?

• [LT⁻²]
• [M¹L²T⁻²]
• [T⁻²]
• [M¹L²T⁻¹]

How is angular displacement related to number of revolutions?

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