AP Daily Review Quiz Video 8

What type of collision occurs when a clay ball sticks to a block after colliding?

• None of the above

• Inelastic collision

• Perfectly elastic collision

• Elastic collision

What is conserved in a totally inelastic collision when external forces are negligible?

• None of the above

• Total mechanical energy

• Momentum

• Kinetic energy

Which quantity remains the same immediately after the collision and when the block reaches height H knot?

• Total mechanical energy of the clay-block system

• Angular momentum of the clay-block system about the top of the string

• Linear momentum of the clay-block system

• Both A and B

What external force affects the momentum of the clay-block system?

• Magnetic force

• No external force

• Electrical force

• Gravitational force

What happens to the kinetic energy of two people pushing off each other on ice?

• It increases

• It decreases

• It remains the same

• It becomes zero

What is true about the momenta of the two people after they push off each other?

• Their speeds are equal

• Their kinetic energies are equal

• Their accelerations are equal

• Their momenta are of equal magnitude

How does the kinetic energy of two blocks after collision compare to before the collision?

• It remains the same

• It is less because some of the kinetic energy was transformed into internal energy

• It is more because of increased velocity

• It is zero

Which block has the greater mass based on the change in velocity?

• Both have the same mass

• Cannot be determined

• Block 2

• Block 1

What does the period T knot represent in the context of the swinging block?

• Angular displacement of the block

• Time taken to return to the original position

• Maximum height achieved by the block

• Velocity of the block at the highest point

What effect does the gravitational force have on the clay-block system?

• It changes the system's momentum

• It increases the system's energy

• It decreases the system's momentum

• It has no effect on the system