ROTATIONAL MOTION

What is the motion of the blades of a fan when the fan is oscillating?

• No motion
• Pure oscillation
• Translational motion
• Rotational motion about an oscillating axis

What is the geometric relationship between the axis of rotation and the circular path of a particle?

• The axis is tangent to the circle
• The axis lies in the plane of the circle
• The axis is perpendicular to the plane of the circle and passes through its center
• The axis is parallel to the circle

In a rigid body rotating about the z-axis, what is the nature of the motion of particle P1?

• Linear motion along z-axis
• Oscillation along x-axis
• Circular motion in a plane perpendicular to the z-axis
• Random 3D motion

What is the motion of a particle on the axis of rotation?

• Fast circular motion
• Slow vibration
• No motion
• Random motion

What is the trajectory of the axis of a precessing top?

• Spherical
• Cylindrical
• Planar
• Conical