ROTATIONAL MOTION

Which of the following represents the rotational analogue of Newton’s second law for linear motion?

• F = mv
• Iτ = α
• P = Fv
• v = ωr

What is the primary factor that determines the effectiveness of a force in producing rotation?

• The color of the object
• The temperature
• The perpendicular distance from the axis of rotation
• The time of day

What is the significance of the term 'external torque' in rotational dynamics?

• It is negligible
• It refers to friction
• It is the torque due to forces outside the system that can change angular momentum
• It is always zero

What is the consequence of applying a force at the axis of rotation?

• It produces maximum torque
• It stops all motion
• It produces zero torque about that axis
• It increases mass

What is the main purpose of defining torque about a point versus an axis?

• To increase force
• To reduce energy
• To determine the rotational effect about a specific line of rotation
• To measure time