Exam 5 Numbers 11-15 Physics 2016-2017

5 Questions | Total Attempts: 62

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Exam 5 Numbers 11-15 Physics 2016-2017

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Questions and Answers
  • 1. 
    11. In what kind of collision is kinetic energy always conserved?
    • A. 

      Elastic collision

    • B. 

      Inelastic collision

    • C. 

      Inelastic collision

    • D. 

      Perfectly inelastic collision

  • 2. 
    12. A helium atom collides with another helium atom in an elastic collision. Which of the following is true?
    • A. 

      Both momentum and kinetic energy are conserved.

    • B. 

      Momentum is conserved but kinetic energy is not conserved.

    • C. 

      Kinetic energy is conserved but momentum is not conserved.

    • D. 

      Neither momentum nor kinetic energy is conserved.

  • 3. 
    13. Two playground balls collide in an inelastic collision. Which of the following is true?
    • A. 

      Both momentum and kinetic energy are conserved.

    • B. 

      Momentum is conserved, but kinetic energy is not conserved.

    • C. 

      Kinetic energy is conserved, but momentum is not conserved.

    • D. 

      Neither momentum nor kinetic energy is conserved.

  • 4. 
    14. In an inelastic collision between two objects with unequal masses,
    • A. 

      The total momentum of the system will increase.

    • B. 

      The total momentum of the system will decrease.

    • C. 

      The kinetic energy of one object will increase by the amount that the kinetic energy of the other object decreases.

    • D. 

      The momentum of one object will increase by the amount that the momentum of the other object decreases.

  • 5. 
    15. A billiard ball collides with a stationary identical billiard ball in an elastic head-on collision. After the collision, which of the following is true of the first ball?
    • A. 

      It maintains its initial velocity.

    • B. 

      It has one-half its initial velocity.

    • C. 

      It comes to rest.

    • D. 

      It moves in the opposite direction.

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