ROTATIONAL MOTION

Why is the motion of a rolling cylinder not pure translational?

• Because it moves slowly
• Because it is round
• Because different points on the cylinder have different velocities
• Because gravity acts on it

What is the main feature of pure translational motion of a rigid body?

• Particles rotate individually
• Velocities vary with position
• All particles have the same velocity at any instant
• Only the center moves

What is the motion of a giant wheel in a fair?

• Linear motion
• Rolling motion
• Oscillation
• Rotation about a fixed axis

In rotational motion, how do the paths of different particles of a rigid body relate to the axis of rotation?

• They move in straight lines parallel to the axis
• They move randomly
• They move in circular paths in planes perpendicular to the axis
• They remain stationary

What characterizes the motion of a ceiling fan?

• Pure translational motion
• Rolling motion
• Oscillation
• Rotation about a fixed axis