Exam 5 Target 5 Retake Preap
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- 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.
Correct Answer
B. Momentum is not conserved for a system of objects in a head-on collision. -
- 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.
Correct Answer
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.
Correct Answer
C. Total momentum is conserved. -
- 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.
Correct Answer
C. Momentum of the cannonball and cannon is conserved. -
- 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
Correct Answer
A. The ball -
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Mar 16, 2022Quiz Edited by
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Oct 20, 2015Quiz Created by
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