Exam 3 Quiz #1

10 Questions | Total Attempts: 779

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Exam 3 Quiz #1

Questions and Answers
  • 1. 
    An action exerted on an object which may change the object’s state of rest or motion defines
    • A. 

      Acceleration

    • B. 

      Force

    • C. 

      Mass

    • D. 

      Velocity

  • 2. 
    Which of the following situations describes inertia?
    • A. 

      A stationary object tends to resist being moved.

    • B. 

      A moving object tends to resist a change in speed.

    • C. 

      A moving object tends to resist a change in direction.

    • D. 

      All of the above

  • 3. 
    Two forces act on an object. The magnitude of the net force acting on the object
    • A. 

      Equals the sum of the magnitudes of the two forces.

    • B. 

      Equals the difference in the magnitudes of the two forces.

    • C. 

      Equals the average of the two forces.

    • D. 

      Cannot be determined from the given information.

  • 4. 
    The normal force
    • A. 

      Equals Fg in magnitude.

    • B. 

      Points vertically upward.

    • C. 

      Is a scalar quantity.

    • D. 

      Acts perpendicular to a surface.

  • 5. 
    Two dogs are tugging on a toy. One dog pulls with a horizontal force of 14 N due north. The other is pulling due east with a horizontal force of 14 N. What is the direction of the net external horizontal force on the toy?
    • A. 

      North

    • B. 

      Northeast

    • C. 

      West

    • D. 

      Northwest

  • 6. 
    A single force acting on an object is represented in a free-body diagram of the object by the following force vector:up . Which of the following force vectors represents a single force acting on the object that will bring the object into equilibrium?
    • A. 

      Up

    • B. 

      Right

    • C. 

      Down

    • D. 

      Left

  • 7. 
    In which situation is the net force acting on a car zero?
    • A. 

      The car increases speed and changes direction.

    • B. 

      The car increases speed but does not change direction.

    • C. 

      The car maintains its speed but changes direction.

    • D. 

      The car maintains both its speed and direction.

  • 8. 
    A draft horse exerts a horizontal force of 600 N dragging a log, on which the force of friction is 500 N. The force due to gravity on the log is 700 N and the ground exerts an upward force of 700 N on it. a.Draw a free-body diagram of the log.Option 1) Option 2)Option 3)Option 4)
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 9. 
    A draft horse exerts a horizontal force of 600 N dragging a log, on which the force of friction is 500 N. The force due to gravity on the log is 700 N and the ground exerts an upward force of 700 N on it.b.Determine the sum of the forces in the x-direction
    • A. 

      1100 N

    • B. 

      100 N

    • C. 

      1400 N

    • D. 

      0 N

  • 10. 
    A draft horse exerts a horizontal force of 600 N dragging a log, on which the force of friction is 500 N. The force due to gravity on the log is 700 N and the ground exerts an upward force of 700 N on it.c.Determine the sum of the forces in the y-direction
    • A. 

      100 N

    • B. 

      700 N

    • C. 

      0 N

    • D. 

      1400 N

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