ROTATIONAL MOTION Quiz

• It describes thermal energy
• It relates to gravitational potential
• It measures electric charge
• Torque causes changes in rotational motion just as force causes changes in linear motion

• Because p is zero
• Because r is constant
• Because time derivative of r is undefined
• Because dr/dt and p are parallel vectors

• They are always opposite
• Torque has no directional effect
• Change in L is random
• Torque determines the direction of the change in angular momentum

• It measures torque magnitude
• It calculates linear speed
• It finds center of mass
• It gives the direction perpendicular to the plane of rotation based on spin direction

• It would float in place
• It would start spinning automatically
• It would rise upward
• It would tilt or fall due to unbalanced torque