ROTATIONAL MOTION

What is the motion of a spinning wheel mounted on a fixed axle?

• Pure translation
• Rolling motion
• Vibration
• Rotation about a fixed axis

Can a rigid body rotate without being physically pivoted?

• No, impossible
• Only on Earth
• Yes, if it has angular momentum
• Only in liquids

What causes the axis of an oscillating fan to swing side to side?

• Air pressure
• Gravity
• Magnetic force
• A mechanical oscillation mechanism

What is the role of the center of mass in analyzing motion?

• It determines color
• It stores energy
• It represents the overall translational movement
• It controls temperature

How does the text define the motion of a non-pivoted rigid body?

• Only rotation
• Only oscillation
• Either pure translation or combination of translation and rotation
• Random motion