Ch2 1-33

1. 1Displacement is

   1. Athe distance traveled from the first position to the final position.
   2. Bthe distance from the origin to the final position.
   3. Cthe change of the position vector from the first position to the final position.
   4. Dthe vector from the origin to the final position.
2. 2On a graph of vx versus time, the area under the graph represents 

   1. Athe change in the x-component of the velocity.
   2. Bthe x-component of the displacement.
   3. Cthe x-component of the velocity.
   4. Dthe x-component of the acceleration.
3. 3On a graph of x versus time, the area under the graph represents

   1. Athe change in the x-component of the velocity.
   2. Bthe x-component of the distance.
   3. Cthe x-component of the velocity.
   4. Dthe x-component of the acceleration.
4. 4If an object is located 20 m to the right of the origin at 1:00 PM and later the object is located 30 m to the right of the origin at 2:00 PM, then the displacement from 1:00 PM to 2:00 PM is 

   1. A50 m to the right.
   2. B30 m to the right.
   3. C25 m to the right.
   4. D20 m to the right.
   5. E10 m to the right.
5. 5A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the EAST to point B. The walker's total displacement from the origin is 

   1. A50 m toward the EAST.
   2. B30 m toward the WEST.
   3. C20 m toward the WEST.
   4. D10 m toward the EAST.
   5. E10 m toward the WEST.
6. 6A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A, 20 m more toward the WEST to point B. He then runs from point B, 30 m more toward the WEST to point C. The runner's total displacement from the origin to point C is 

   1. A60 m toward the WEST.
   2. B50 m toward the WEST.
   3. C20 m toward the WEST.
   4. D10 m toward the WEST.
   5. E0 m.
7. 7A walker starts at the origin at 1:00 PM and walks 3.0 km from the origin toward the WEST to point A. She arrives at point A at 2:30 PM. She then walks from point A, 2.0 km toward the WEST to point B and arrives at point B at 3:45 PM. The walker's average velocity for the entire trip is 

   1. A1.8 km/hr toward the EAST.
   2. B1.8 km/hr toward the WEST.
   3. C1.3 km/hr toward the WEST.
      
   4. D1.3 km/hr toward the EAST.
   5. E0.36 km/hr toward the WEST.
8. 8A vector A is directed along the positive x-axis and has a magnitude of 3.00 units. Vector B is directed along the negative x-axis and has a magnitude of 2.00 units. The magnitude and direction of the vector A + B is 

   1. A3.00 units in the positive x direction.
   2. B1.00 unit in the positive x direction.
   3. C3.00 units in the negative x direction.
   4. D1.00 unit in the negative x direction.
9. 9A vector A is directed along the positive x-axis and has a magnitude of 3.00 units. Vector B is directed along the negative x-axis and has a magnitude of 2.00 units. The magnitude and direction of the vector A - B is 

   1. A3.00 units in the positive x direction.
   2. B1.00 unit in the negative x direction.
      
   3. C3.00 units in the negative x direction.
   4. D5.00 units in the positive x direction.
10. 10A vector A is directed along the positive x-axis and has a magnitude of 3.00 units. Vector B is directed along the negative x-axis and has a magnitude of 2.00 units. The magnitude and direction of the vector B – A is 

    1. A3.00 units in the positive x direction.
    2. B1.00 unit in the positive x direction.
    3. C3.00 units in the negative x direction.
    4. D5.00 units in the negative x direction.

11. 11The figure is a graph of vx(t) for a car. Solve graphically for the distance traveled from t = 9 s to t = 15 s.

    1. A75 m
    2. B70 m
    3. C84 m
    4. D80 m
12. 12The graph shows the speedometer reading of a car as it comes to a stop along a straight-line path. How far does the car move between t = 0 s and t = 16 s?

    1. A40 m
    2. B140 m
    3. C80 m
    4. D160 m
13. 13The figure is a graph of the vertical velocity versus time for an elevator. Solve graphically for the height of the elevator above the starting point at t = 20 s.

    1. A4.0 m
    2. B16.0 m
    3. C0.0 m
    4. D8.0 m
14. 14 The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the distance traveled from t = 9.0 s to t = 13.0 s.

    1. A60 m
    2. B84 m
    3. C76 m
    4. D80 m
15. 15On a graph of x versus time, the slope represents 

    1. Athe change in the x-component of the velocity.
    2. Bthe x-component of the displacement.
    3. Cthe x-component of the velocity.
       
    4. Dthe x-component of the acceleration.
16. 16A car travels a distance of 100 km in 2.00 hours. It then travels an additional distance of 60.0 km in 1.00 hour. The average speed of the car for the entire trip is 

    1. A80.0 km/hr.
    2. B60.0 km/hr.
    3. C53.3 km/hr.
    4. D50.0 km/hr.
    5. E46.7 km/hr.
17. 17A car travels at 50.0 km/hr for 2.00 hours. It then travels an additional distance of 40.0 km in 1.00 hour. The average speed of the car for the entire trip is 

    1. A61.0 km/hr.
    2. B57.1 km/hr.
    3. C 53.3 km/hr.
    4. D 46.7 km/hr.
    5. E30.0 km/hr.
18. 18A car travels east at 50.0 km/hr for 2.00 hours. It then travels west 40.0 km in 1.00 hour. The average velocity of the car for the entire trip is 

    1. A20.0 km/hr.
    2. B27.1 km/hr.
    3. C38.3 km/hr.
    4. D46.7 km/hr.
    5. E30.0 km/hr.
19. 19A motor cycle travels EAST at a speed of 12 m/s. The driver then reverses direction and goes WEST at 15 m/s. What is the change in velocity of the motor cycle? 

    1. A3.0 km/hr EAST
    2. B27.0 km/hr EAST
    3. C3.0 km/hr WEST
    4. D27.0 km/hr WEST
20. 20A car travels for 140 km at 70.0 km/hr. It then travels an additional distance of 60.0 km at 40.0 km/hr. The average speed is 

    1. A61.0 km/hr.
    2. B57.1 km/hr.
    3. C53.3 km/hr.
    4. D46.7 km/hr.
    5. E45.0 km/hr.
21. 21The graph shows vx versus t for an object moving along straight line. What is the average velocity from t = 0 to t = 11 s?

    1. A26 m/s2
    2. B36 m/s2
    3. C30 m/s2
    4. D23 m/s2
22. 22The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the distance traveled between t = 5.0 s and t = 9.0 s.

    1. A110 m
    2. B140 m
    3. C100 m
    4. D130 m
23. 23The graph shows vx versus t for an object moving in a straight line. What is the average velocity from t = 0 s to t = 9 s?

    1. A44 m/s2
    2. B32 m/s2
    3. C22 m/s2
    4. D27 m/s2
24. 24The figure is a graph of an object moving in a straight line. Solve graphically to determine which section of the path has the highest speed.

    1. ADE
    2. BEF
    3. CCD
    4. DAB
25. 25A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2. After 3.0 seconds, the average velocity during the acceleration is 
    

    1. A5.0 m/s.
    2. B7.0 m/s.
    3. C9.0 m/s.
    4. D11 m/s.
    5. E13 m/s.
26. 26The figure shows the speedometer readings as a car comes to a stop. Solve graphically for the acceleration at t = 7.0 s.

    1. A2.5 m/s2
    2. B-2.5 m/s2
    3. C-2.0 m/s2
    4. D2.0 m/s2
27. 27The graph shows vx versus t for an object moving along straight line. What is the acceleration at t = 11 s?

    1. A-10 m/s2
    2. B10 m/s2
    3. C22 m/s2
    4. D-22 m/s2
28. 28The figure shows the graph of vx versus time for an object moving along the x-axis. What is the acceleration at t = 3 s?

    1. A4.0 m/s2
    2. B0.0 m/s2
    3. C1.5 m/s2
    4. D2.4 m/s2
29. 29On a graph of vx versus time, the slope represents 

    1. Athe change in the x-component of the velocity.
    2. Bthe x-component of the displacement.
    3. Cthe x-component of the velocity.
    4. Dthe x-component of the acceleration.
30. 30A car starts from rest at t = 0 and accelerates in a straight line with a constant acceleration until t = 3.0 s. The distance traveled between t = 1.0 s and t = 2.0 s is 

    1. Afour time the distance traveled during the first second.
    2. Bthree times the distance traveled during the first second.
    3. Ctwo times the distance traveled during the first second.
    4. Dthe same as the distance traveled during the first second.
31. 31The area under an acceleration versus time graph gives 

    1. Aacceleration.
    2. Bvelocity.
    3. Cdisplacement.
    4. Dposition.
32. 32If a ball is thrown downward in the absence of air resistance, what can be said about its acceleration? 

    1. Aits acceleration is constantly increasing
    2. Bits acceleration is constantly decreasing
    3. Cits acceleration is constant
    4. Dits acceleration is zero
33. 33The area under an acceleration versus time graph gives 

    1. Aacceleration.
    2. Bvelocity.
    3. Cdisplacement.
    4. Dposition.

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Test sobre Ch2 1-33, creado por mnahvi7+examtime el 09/09/2015.

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