ROTATIONAL MOTION

What is the rotational analogue of linear velocity (v)?

• Angular acceleration
• Angular displacement
• Moment of inertia
• Angular velocity (ω)

What is the rotational analogue of linear displacement (x)?

• Angular velocity
• Angular acceleration
• Torque
• Angular displacement (θ)

What simplification is made in rotational motion about a fixed axis regarding position vectors?

• Only magnitude matters
• Only axial components are used
• Only perpendicular components are considered
• Position vectors are ignored

Which of the following best describes the role of constraint forces in fixed-axis rotation?

• They increase angular speed
• They reduce friction to zero
• They prevent the axis from moving due to perpendicular torques
• They eliminate the need for torque

What is the formula for work done in rotational motion, analogous to F dx in linear motion?

• F dθ
• τ dx
• τ dθ
• I α dθ