ROTATIONAL MOTION

What is the purpose of using vector products in rotational dynamics?

• To simplify calculations
• To reduce vector size
• To increase computational speed
• To account for direction and magnitude simultaneously

What is the effect of doubling the angular velocity on the linear velocity of a particle?

• No change
• Halves
• Quadruples
• Linear velocity doubles

What is the vector nature of angular acceleration when the axis is fixed?

• It is tangential
• It is radial
• It is opposite to velocity
• It is along the axis of rotation

What is the main reason a force at the edge of a wheel produces more rotation than at the center?

• Less friction
• Greater mass
• Greater moment arm
• Better grip

Which of the following is true about angular velocity in uniform circular motion?

• It changes continuously
• It is zero
• Magnitude changes
• It is constant in magnitude