3. Vocab Concepts 200200 AP Problems Problems II Problems Graphical Analysis 1000 800 600 400 200 400 600 800 1000 800 600 400 200

4. The study of how objects move Back And the answer is..

5. And the answer is... Kinematics Back

6. Change in distance over change In time And the answer is...

7. speed Back

8. Displacement over time Back And the answer is..

9. And the answer is... Velocity Back

10. Define scalar and give two examples of scalars. Back And the answer is..

11. And the answer is... Magnitude only (no direction) Speed, mass, temperature, etc. Back

12. Define vector and give two examples. Back And the answer is..

13. And the answer is... Magnitude and direction Velocity, acceleration, force, etc. Back

14. What does negative velocity mean? Back And the answer is..

15. And the answer is... That the object is moving in the “negative-x” direction. IT DOES NOT MEAN THAT IT IS SLOWING DOWN Back

16. What does negative acceleration mean? Back And the answer is..

17. And the answer is... That the object is decelerating – slowing down. Back

18. What is the velocity at the peak of a trajectory during free fall problems? Back And the answer is..

19. And the answer is... ZERO! Back

20. A feather and an elephant are both dropped from a cliff at the same time. If air resistance is neglected, which will land first? Back And the answer is..

21. And the answer is... They both will land at the same time. Back

22. In the first section of the graph below, is the object at rest, moving at a constant speed, speeding up, or slowing down? Back And the answer is..

23. And the answer is... Moving at a constant speed Back

24. The average speed of a runner who runs 5.00 kilometers in 30.0 minutes is... (give answer in km/hr) Back And the answer is..

25. And the answer is... 10.0 km/hr Back

26. If a car travels 25 miles and maintains a speed of 65 miles per hour, how long was it traveling (give answer in hours)? Back And the answer is..

27. And the answer is... 0.38 hrs Back

28. If a car maintains a constant velocity of 90.0 km/hr for 25 seconds, what is its acceleration? Back And the answer is..

29. And the answer is... zero! The car’s velocity isn’t changing! Back

30. A car accelerates from rest to 75 miles per hour in 5.0 seconds. Give the car’s acceleration in meters per second. Back And the answer is..

31. And the answer is... 6.7 m/s 2 Back

32. A person walks 5.0 ft east for 4.0 seconds and then turns around and walks 3.0 ft west for 2.0 seconds. Determine the person’s average velocity for the entire trip in meters per second. Back And the answer is..

33. And the answer is... 0.11 m/s Back

34. An stone is dropped from a cliff. What is its position after 4.5 seconds? Back And the answer is..

35. And the answer is... 99 m Back

36. A car falls off a cliff that is 150 meters high. At what time will its velocity reach 25 m/s? Back And the answer is..

37. And the answer is... 2.6 seconds Back

38. A person standing on a building 80.0 meters high launches an arrow vertically upward at a speed of 50.0 m/s. How high does the arrow go? Back And the answer is..

39. And the answer is... 208 m Back

40. A stone is thrown upward with a speed of 15.0 m/s. Calculate the total time the stone is in the air. Back And the answer is..

41. And the answer is... 3.06 s Back

42. An airplane must reach a speed of 75.0 m/s for take-off. If the constant acceleration of the airplane is 3.20m/s 2, calculate necessary length of the runway. Back And the answer is..

43. And the answer is... 879 meters Back

44. The slope of a position time graph gives... Back And the answer is..

45. And the answer is... average velocity Back

46. How would you find the the displacement of an object if you were given a velocity-time graph? Back And the answer is..

47. And the answer is... Calculate the area under the curve Back

48. Given the following graph, calculate the velocity of the object from 1 to 3 seconds Back And the answer is..

49. And the answer is... 20 m/s Back

50. On the graph below, determine the acceleration of the object from 6 to 8 seconds. Back And the answer is..

51. And the answer is... -1 m/s 2 Back

52. On the graph below, determine the distance traveled by the car in the first 100 seconds. Back And the answer is..

53. And the answer is... 1000 meters Back

54. If an object’s position is given by the function x(t) = 3t 3 + 2t 2, what will be the shape of the graph of its acceleration? And the answer is..

55. And the answer is... Linear Take the second derivative of x(t) to find a(t) = 18t + 4 Back

56. The position of a particle is given by x(t) =4 + 3t - 2t 2. What is the particle’s average acceleration from t=0 to t=3? And the answer is..

57. And the answer is... - 4m/s 2 (take the second derivative to get a(t) = -4. It is a constant acceleration). Back

58. Give the particle’s position at t=3.00 seconds given the following information: v(t) = 3t 2 + 4t + 5 x(0) = 0 Back And the answer is..

59. And the answer is... 60.0 meters. Take the integral of v(t) to get x(t) = t 3 + 2t 2 + 5t. Evaluate x(3). Back

60. Given the following equation, x(t) = 3t. What is the instantaneous velocity at 4 seconds? And the answer is..

61. And the answer is... 3 m/s take the derivative of x(t) to get v(t) = 3. Back

62. The velocity of a particle moving in one dimension is given by the equation v(t) = 2 + 6t 2, where velocity is in m/s and time is in seconds. What is the average value of the velocity in the interval t=0 to t=3?. And the answer is..

63. And the answer is... 20 m/s av. Vel = Δx / Δt need to find x(t). Integrating gives: x(t) = 2t + 2t 3 + c. Δx = x(3) - x(0) = 60. Av vel = 60 /3 = 20 m/s Back