ROTATIONAL MOTION

What determines the magnitude of the torque required to change angular momentum?

• The color of the object
• The ambient humidity
• The rate of change of angular momentum
• The time of day

Why is the term CP × v important for calculating the z-component of angular momentum?

• It measures linear speed
• It calculates temperature
• It directly gives the axial contribution for each particle
• It determines color

What is the physical meaning of the vector equation L = L_z + L_⊥?

• It multiplies components
• It subtracts vectors
• It expresses the vector decomposition of total angular momentum
• It calculates energy

How does the angular momentum of a particle in uniform circular motion depend on the choice of origin?

• It is always constant
• It becomes zero
• It changes if the origin is not at the center of the circle
• It depends on time only

What is the role of the center of mass in angular momentum calculations for a translating and rotating body?

• It has no role
• It increases mass
• It allows separation of orbital and spin angular momentum
• It reduces speed