ROTATIONAL MOTION

What is the role of the fixed point O in a spinning top?

• It increases friction
• It reduces weight
• It fixes the axis of rotation at that point
• It emits energy

In rotational motion, what is the direction of the velocity of a particle at any instant?

• Radially outward
• Along the axis
• Toward the center
• Tangential to its circular path

What is the main difference between the motion of P2 and P3 in rotational motion?

• P2 is heavier
• P2 moves slower
• P2 moves in a circle, P3 is stationary
• P2 vibrates

What is the shape of the path traced by the upper end of a spinning top's axis during precession?

• Straight line
• Ellipse
• Helix
• Circle

In Fig. 6.4, what is the relationship between r1 and the motion of P1?

• r1 is the angular speed
• r1 is the linear velocity
• r1 is the mass
• r1 is the radius of the circular path of P1