ROTATIONAL MOTION

What is the primary reason for ignoring forces parallel to the axis of rotation?

• They are always zero
• They increase mass
• They produce torques perpendicular to the axis
• They cause heating

What is the unit of torque in the SI system?

• Joule
• Watt
• Newton-meter (N·m)
• Radian

What is the rotational analogue of Newton’s second law of motion?

• F = dp/dt
• τ = dL/dt
• τ = Iα
• W = F·d

What is the rotational analogue of linear momentum (p = mv)?

• Torque
• Kinetic energy
• Force
• Angular momentum (L = Iω)

What is the rotational analogue of linear acceleration (a)?

• Torque
• Force
• Angular velocity
• Angular acceleration (α)