Exam 5 Target 5 Retake Preap

1. A billiard ball hits the edge of another billiard ball that is initially at rest. The second ball moves off at an angle. Which of the following is true?

The momentum of the first ball doesn’t change.

The momentum of the second ball doesn’t change.

The total momentum of the system increases.

The momentum lost by the first ball is gained by the second ball.

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2. In any collision

Total momentum is not conserved.

Total kinetic energy is conserved.

Total momentum is conserved.

Total momentum is not conserved but total kinetic energy is conserved.

Total momentum and total kinetic energy are conserved and the masses are equal.

3. When a cannon fires a cannonball, the cannon will recoil backward because the

Energy of the cannonball and cannon is conserved.

Momentum of the cannon is greater than the energy of the cannonball.

Momentum of the cannonball and cannon is conserved.

Energy of the cannon is greater than the energy of the cannonball.

4. Which of the following statements about the conservation of momentum is not correct?

Momentum is conserved for a system of objects pushing away from each other.

Momentum is not conserved for a system of objects in a head-on collision.

Momentum is conserved when two or more interacting objects push away from each other.

The total momentum of a system of interacting objects remains constant regardless of forces between the objects.

5. A rubber ball and a lump of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

The ball

The putty

Both experience the same momentum change.

Cannot be determined from the information given