ROTATIONAL MOTION

What is the main difference between rotational motion with a fixed axis and one without?

• Fixed axis bodies are heavier
• Non-fixed axis bodies are smaller
• In fixed axis rotation, the axis does not change direction
• There is no difference

In the diagram, what is the significance of point C1?

• It is the center of mass
• It is a random point
• It is the center of the circular path of particle P1
• It is the tip of the top

What happens to the axis of rotation in a spinning top as it precesses?

• It becomes straight
• It stops moving
• It moves in a conical path
• It disappears

What is the motion of the fan blades in an oscillating fan, as shown in Fig. 6.5(b)?

• Translational motion
• Oscillatory motion only
• Vibrational motion
• Rotational motion

In rotational motion, what is the relationship between the axis and the center of the circular path of a particle?

• The center is always above the axis
• The center moves away from the axis
• The center lies on the axis
• There is no relationship