# Exam 5 Target 5 Retake Preap

5 Questions | Total Attempts: 47  Settings  .

• 1.
Which of the following statements about the conservation of momentum is not correct?
• A.

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

• B.

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

• C.

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

• D.

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

• 2.
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?
• A.

The momentum of the first ball doesn’t change.

• B.

The momentum of the second ball doesn’t change.

• C.

The total momentum of the system increases.

• D.

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

• 3.
In any collision
• A.

Total momentum is not conserved.

• B.

Total kinetic energy is conserved.

• C.

Total momentum is conserved.

• D.

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

• E.

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

• 4.
When a cannon fires a cannonball, the cannon will recoil backward because the
• A.

Energy of the cannonball and cannon is conserved.

• B.

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

• C.

Momentum of the cannonball and cannon is conserved.

• D.

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

• 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?
• A.

The ball

• B.

The putty

• C.

Both experience the same momentum change.

• D.

Cannot be determined from the information given Back to top