Chapter 7: Linear Momentum

4 Questions

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Momentum Quizzes & Trivia

Questions and Answers
  • 1. 
    What is the SI unit of momentum?
    • A. 

      N*m

    • B. 

      N/s

    • C. 

      N*s

    • D. 

      N/m

  • 2. 
    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 cannonball and cannon is conserved.

    • C. 

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

    • D. 

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

  • 3. 
    A freight car moves along a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?
    • A. 

      It increases.

    • B. 

      It remains the same.

    • C. 

      It decreases.

    • D. 

      Cannot be determined from the information given.

  • 4. 
    A child falls sideways off a sled while sledding on frictionless ice. What happens to the velocity of the sled?
    • A. 

      It increases.

    • B. 

      It remains the same.

    • C. 

      It decreases.

    • D. 

      Cannot be determined from the information given.