Exam 5 Target 5 Retake Preap

5 Questions | Total Attempts: 47

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Exam 5 Target 5 Retake Preap

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Questions and Answers
  • 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

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