Name ________________________________ Period ____ CP Physics Final Examination Review Questions Part 1 (Multiple Choice) 1. ___ Which of the following SI prefixes means 1/100? a. Milli b. Centi c. Kilo d. Micro 2. ___ Which of the following SI prefixes means 1000? a. Milli b. Centi c. Kilo d. Micro 3. ___ Which quantity listed below is a derived (calculated) unit? a. Length b. Area c. Mass d. Time 4. ___ In scientific notation, 1 000 000m should be written as a. 1 x 105m b. 1 x 10-5m c. 1 x 10-6m d. 1 x 106m 5. ___ In scientific notation, 0.000 04s should be written as a. 4 x 10-5s b. 4 x 105s c. 4 x 10-6s d. 4 x 106s 6. ___ 4.0 x 104m +3 x 103m equals a. 7 x 107m b. 4.3 x 104m c. 7 x 103m d. 4.4 x 1012m Document1 1 7. ___ 6.8 x 109mm – 5.0 x 108mm equals a. 1.3 x 101mm b. 1.3 x 108.5mm c. 6.3 x 109mm d. 0.63 x 100mm 8. ___ 4.0 x 1012m times 8 x 106m equals a. 3.2 x 1018m2 b. 3.2 x 1017m2 c. 3.2 x 102m2 d. 3.2 x 1019m2 9. ___ 3 x 108 divided by 1 x 10-7 equals a. 3 x 1015 b. 3 x 101 c. 3 x 10-56 d. 3 x 1056 10. ___ 300cm equals a. 0.03m b. 0.3m c. 3m d. 30 000m 11. ___ If x = gt, then t equals a. g/x b. gx c. x/g d. 1/gx 12. ___ If x = abc/d, then b equals a. acx/d b. ac/xd c. axd/c d. xd/ac 13. ___ Which of the following equations is dimensionally correct? a. Speed = distance x time b. Distance = speed x time c. Distance = speed/time d. Distance = time/speed Document1 2 Questions 14-16 refer to the three graphs below. A B C 14. ___ Which graph is indicating y = x2? 15. ___ Which graph is indicating y = mx? 16. ___ Which graph is indicating y = 1/x? Questions 21-23 refer to the figure below. 17. ___ The sine of angle B equals a. 3/5 b. 3/4 c. 4/5 d. 4/3 18. ___ The cosine of angle A equals a. 4/5 b. 3/5 c. 4/3 d. 3/4 19. ___ The measure of angle A, to the nearest degree, equals a. 53° b. 11° c. 49° d. 37° 20. ___Which of the following represents a vector? Document1 3 21. ___The resultant vector when a. b. c. d. is added to is 22. ___Which of the following represents a speed? a. 6m b. 4h/km/s c. 2m/s2 d. 8m/s 23. ___Which of the following represents an acceleration? a. 16m2/s2 b. 4h/km/s c. 8km/hr d. 2m/s2 24. ___Which of the following equations relates the change in velocity of an object during a time interval to its acceleration? a. v = d/t b. d = v0t + ½ aΔt2 c. v12=v02 + 2aΔd d. v1 = v0 + aΔt 25. ___Neglecting air resistance, an object thrown straight up has the same _______ on the way down as it had on the way up. a. Acceleration b. Velocity c. Terminal velocity d. Instantaneous velocity 26. ___If a car travels 30km during the 1st ½ hour of the trip and then travels 50km during the next ½ hour of the trip, then the average speed for the hour was a. 20km/hr b. 40km/hr c. 60km/hr d. 80km/hr Document1 4 27. ___An object is thrown straight up at 10 m/s. at the top of its rise, the magnitude of it acceleration (to the nearest meter per second squared) is a. 20m/s2 b. 10 m/s2 c. 5 m/s2 d. 0 m/s2 Questions 28 and 29 refer to the situation below. A young boy walks 150 meters due East and then turns around and walks 30 meters due West. 28. ___The boy walked a total distance of a. 30 meters b. 150 meters c. 120 meters d. 180 meters 29. ___The boy’s displacement was a. 30m East b. 150m East c. 120m East d. 180m West Questions 31 to 33 refer to the position-time graph below. 30. ___Which section represents accelerated motion? 31. ___Which section shows the object at rest? 32. ___The object always moves toward the starting point in this section. 33. ___Which section represents constant negative velocity? Document1 5 Questions 34 to 37 refer to the velocity-time graph below. 34. 35. 36. 37. ___Which section represents a constant velocity other than zero? ___Which section represents the greatest acceleration? ___Which section represents a changing acceleration? ___Which section represents the greatest displacement? Questions 38 to 41 refer to the acceleration-time graph below. 38. 39. 40. 41. ___Which section represents the greatest change in velocity? ___Which section represents an acceleration of zero? ___Which section represents the greatest positive acceleration? ___Which section represents a changing acceleration? 42. ___Which of the objects below has the greatest inertia? 43. ___Which object can be moving with uniform motion in a straight line if the only forces acting are those shown in the diagram? Document1 6 44. ___A certain force F gives mass M an acceleration of a. Therefore, force F will give a mass of 2M an acceleration of a. 2a b. a c. a/2 d. a/4 e. 45. ___Which of the following objects is more massive? 46. ___What is the magnitude of the missing force in the figure below? a. 10N b. 20N c. 30N d. 40N 47. ___ What is the magnitude of the missing force in the figure below? a. 10N b. 30N c. 50N d. 70N 48. ___What is the magnitude of the normal force in the figure below? a. 5N b. 10N c. 50N d. 100N Document1 7 49. ___The resultant vector when is added to is a. b. c. d. 50. ___Four vectors of the same magnitude are added together, one pointing East, one West, one South and one North. The magnitude of the resultant vector is a. 0 b. 1 c. 2 d. 4 51. ___Two vectors acting at right angles to each other and having magnitudes of 6 and 8 respectively a resultant net vector with a magnitude of a. 2 b. 10 c. 14 d. 16 52. ___Two vectors having magnitudes of 5 and 8 respectively acting on a single points cannot have a resultant with a magnitude of a. 3 b. 7 c. 13 d. 15 53. ___The equilibrant force for the two vectors shown in the figure below is Document1 8 54. ___Which of the following represents the y component of vector A shown in the figure below? Questions 55 to 57 refer to the crate resting on the inclined plane diagrammed below. 55. ___Which force vector represents the weight of the crate? a. A b. B c. C 56. ___Which force vector represents the force of gravity in the y-direction? a. A b. B c. C 57. ___If the incline becomes steeper, which force vector will increase? a. A b. B c. C 58. ___Three forces act concurrently on an object. The 1st is a 5N force active due East, the 2nd is a 3N force acting due West and the 3rd is a 4N force acting due East. What is the equilibrant force? a. 12N East b. 12N west c. 6N East d. 6N West Document1 9 59. ___Which path below most accurately describes the motion of an object projected horizontally from a height? 60. ___At which angle would a projectile travel the farthest horizontally? 61. ___An object is moving with uniform speed along path AB as shown below. Which arrow shows a possible direction for centripetal acceleration? 62. ___An object vibrates 100 times in 20 seconds. What is the object’s period? a. 1/5s b. 20s c. 1/20s d. 5s 63. ___An object on a string is moving about in a circle as shown below. If the string breaks when the object is at point A, in which direction will the object fly? Document1 10 Questions 64 and 66 refer to the figure below which represents a strobe photo of a ball projected horizontally from a height. 64. ___Which diagram best describes the vertical component of the ball’s displacement? 65. ___Which diagram best describes the horizontal component of the ball’s displacement? 66. ___Which object below has the least momentum? 67. ___If a 54 N-s impulse is given to a 6.0kg object, the change in momentum for the object is a. 6 N-s b. 9 N-s c. 54 N-s d. 324 N-s 68. ___A firecracker is placed in the midst of a motionless cluster of billiard balls on a table. When the firecracker explodes, the balls scatter in all directions. The total momentum of the balls immediately after the explosion is a. More than before the explosion b. Less than before the explosion c. The same as before the explosion d. Cannot tell from this information 69. ___Object A has a momentum of 60N-s. Object B, which has the same mass, is standing motionless. Object A strikes object B and stops. If the mass of object B is 6KG, the velocity of object B after the collision is a. 0m/s b. 10m/s c. 60m/s d. 360m/s Document1 11 70. ___Billiard ball A collides with billiard ball B, which is motionless on the table. During the collision, ball A loses 10N-s of momentum. Which of the following is a possible condition for ball B after the collision? a. m = 5kg, v = 5m/s b. m = 10kg, v = 5m/s c. m = 10kg, v = 1m/s d. m = 1kg, v = 20m/s 71. ___What is the velocity of object AB below after the collision? The masses are then locked together. a. b. c. d. 0m/s 5m/s 10m/s 20m/s 72. ___What is the velocity of object B below after the collision? a. b. c. d. 4m/s 8m/s -4m/s -8m/s 73. ___Work is done when a. An object is at rest. b. A force is applied to an object. c. A force causes an object to move. Document1 12 74. ___Which of the following is a unit for work? a. Newton b. Joule c. Watt d. Joule per second 75. ___Which of the following is a unit for power? a. Newton-meter b. Watt c. Joule d. Newton 76. ___A crate is pushed to the top of a frictionless inclined plane 15m long with a force of 25N. if the crate weighs 125N, how high is the inclined plane? a. 0.5m b. 1m c. 3m d. 5m 77. ___A person prevents a 7500N car with its breaks released from rolling down a hill by pushing on the car with a force of 250N. How much work has the person done? a. 0J b. 5000J c. 150 000J d. 300 000J 78. ___Electric bills are paid on the basis of kilowatt-hours of electricity used. The kilowatt-hour is a unit of a. Force b. Work c. Power d. Time 79. ___Like work, energy is a ______quantity. a. Vector b. Scalar c. Fundamental Document1 13 80. ___Which of the following is an energy unit? a. Watt b. Joule c. Newton-second d. Joule/second 81. ___Which object below has the most potential energy relative to the base level indicated? 82. ___Which of the objects below has the most kinetic energy? 83. ___During a certain time interval, a 20N object falls 10m. The object gains ___ J of kinetic energy during this interval. a. 10 b. 20 c. 200 d. 2000 84. ___a 5kg object has 250J of kinetic energy. The speed of the object is a. 5m/s b. 10m/s c. 200m/s d. 2000m/s Document1 14