Conservation of Momentum Quiz

What is the fundamental quantity for momentum?

• Mass

• Velocity

• Both mass and velocity

• Acceleration

What is the center of mass defined as for a continuous rigid body?

• The position of the lightest particle

• The position of the heaviest particle

• The integral over the body

• The average position of all the particles

What is the velocity of the center of mass given by?

• Total mass divided by total momentum

• Total mass multiplied by total momentum

• Total momentum divided by total mass

• Total momentum multiplied by total mass

What does the center of mass theorem state?

• The center of mass moves as if the entire mass were concentrated at that point

• The center of mass remains stationary

• The center of mass moves in the opposite direction of the total mass

• The center of mass moves randomly within the system

What does the conservation of momentum imply for an isolated system?

• The total momentum is zero

• The total momentum depends on the interactions

• The total momentum is constant

• The total momentum is not constant

What is the relationship between the total external force and the total momentum of the system?

• The total external force is opposite to the total momentum

• The total external force is equal to the change in total momentum

• The total external force is proportional to the total momentum

• The total external force is equal to the total momentum

What type of motion does the EOM describe?

• Circular motion

• Translational motion

• Oscillatory motion

• Rotational motion

What is the impulse experienced by a system if the change in total momentum is zero?

• Zero impulse

• Impulse depends on the mass

• Negative impulse

• Positive impulse

What is the center of mass method useful for?

• Reducing a many body problem to center of mass coordinate

• Describing rotational motion

• Calculating the total external force

• Solving variable mass problems

What does the conservation of momentum hold true even in areas where Newtonian mechanics proves inadequate?

• It holds true even in quantum mechanics and relativity

• It holds true only in relativity

• It holds true only in quantum mechanics

• It holds true only in classical mechanics