ROTATIONAL MOTION

What is the net effect of a couple on a rigid body?

• Produces translation only
• Produces rotation without translation
• Produces both
• Produces no motion

How does gravitational field variation affect center of gravity?

• It has no effect
• It makes them identical
• It causes center of gravity to differ from center of mass
• It reduces mass

What is the importance of separating motion into center of mass and relative motion?

• It increases complexity
• It is unnecessary
• It simplifies the analysis of complex systems
• It only works for solids

What determines the torque produced by a force?

• Only the force
• Only the distance
• The force and its perpendicular distance from the axis
• The mass of the object

How is the moment of inertia affected by the axis of rotation?

• It is always the same
• It changes with the axis
• It decreases with mass
• It is independent of shape