ROTATIONAL MOTION Quiz

• It cannot move at all
• It only rotates
• It only translates
• A rigid body can have both translational and rotational motion

• It is always at the geometric center
• It is the point with zero mass
• It moves randomly
• It moves as if all the mass were concentrated there and all external forces acted on it

• Because all particles move independently
• Because particles have no mass
• Because an extended body can be viewed as a collection of particles
• Because particles cannot interact

• It assumes zero mass
• It ignores the finite size and shape of the body
• It assumes infinite speed
• It only applies to liquids

• An extended body with volume
• A body with changing shape
• A point mass with no size
• A body that always rotates