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Physical Science Comprehensive Spring 2011 Test

Multiple Choice

Identify the choice that best completes the statement or answers the question.

1. Nanotechnology is based on a unit of measurement called a nanometer, which is what fraction of a meter?

|A. |one hundredth |

|B. |one thousandth |

|C. |one millionth |

|D. |one billionth |

|E. |one trillionth |

2. What describes how close together repeated measurements or events are to one another?

|A. |accuracy |

|B. |precision |

|C. |resolution |

|D. |reproducibility |

|E. |closeness |

3. Which of the following is NOT a unit of measurement in the metric system?

|A. |Meter |

|B. |Second |

|C. |Centimeter |

|D. |Foot |

4. The conversion factor for changing one unit of length to another in the metric system is a multiple of:

|A. |3. |

|B. |10. |

|C. |12. |

|D. |5,280. |

5. How many seconds are in 3 days?

|A. |72 seconds |

|B. |4,320 seconds |

|C. |259,200 seconds |

|D. |86,400 seconds |

6. What is the value of a conversion factor ratio?

|A. |1 |

|B. |3 |

|C. |10 |

|D. |12 |

7. When you convert a measurement from SI to English, what changes?

|A. |Units |

|B. |Values |

|C. |Error |

|D. |Resolution |

8. What are the meaningful digits called in a measurement?

|A. |Precision |

|B. |Uncertainty |

|C. |Significant digits |

|D. |Accuracy |

[pic]

Figure 1-1A

9. What is the volume of liquid in the graduated cylinder shown in Figure 1-1A?

|A. |8 mL |

|B. |18 mL |

|C. |18.5 mL |

|D. |19 mL |

10. Which measurement has 4 significant digits?

|A. |0.04349 |

|B. |43.490 km |

|C. |434.90 km |

|D. |4349.0 km |

[pic]

Mt. Elbert is the highest peak in the Colorado Rocky Mountains. Its elevation is listed at 14,433 feet.

Figure 1-3A

11. How many significant digits are in the measurement 14,433 feet?

|A. |3 |

|B. |4 |

|C. |5 |

|D. |6 |

12. A meniscus:

|A. |is formed when a liquid is in a tube. |

|B. |makes volume measurements impossible. |

|C. |always curves downward. |

|D. |All of the above |

13. The amount of matter in an object is called its:

|A. |volume. |

|B. |gram. |

|C. |weight. |

|D. |mass. |

14. Mass is measured in units of:

|A. |inches and feet. |

|B. |pounds and ounces. |

|C. |kilograms and grams. |

|D. |cubic centimeters. |

15. The space that an object takes up is known as its:

|A. |density. |

|B. |volume. |

|C. |weight. |

|D. |mass. |

16. Which is true of a kilogram of feathers and a kilogram of bricks?

|A. |They have the same mass. |

|B. |They have the same volume. |

|C. |The bricks are less dense. |

|D. |The feathers are more dense. |

17. A plastic toy with a mass of 18 grams occupies 9.0 cm3 of space. Its density is:

|A. |0.3 g/cm3 |

|B. |1.5 g/cm3 |

|C. |2.0 g/cm3 |

|D. |6.0 g/cm3 |

18. A graduated cylinder contains 30 mL of water. You place an object into the cylinder and the water level rises to 52 mL. What is the volume of the object?

|A. |22 mL |

|B. |30 mL |

|C. |52 mL |

|D. |82 mL |

19. Which of the following is the same measurement as 500 grams of water?

|A. |0.5 liters of water |

|B. |5 liters of water |

|C. |5 kilograms of water |

|D. |5 milliliters of water |

20. By adding more copper to an copper block, you:

|A. |increase its density. |

|B. |decrease its density. |

|C. |decrease its mass. |

|D. |do not change its density. |

21. How does the density of a pure silver teapot compare to a pure silver bracelet?

|A. |It is higher. |

|B. |It is lower |

|C. |It is the same. |

|D. |You can’t tell without the numbers. |

22.

|Material |Density |

|Wood |0.9 g/cm3 |

|Glass |2.3 g/cm3 |

|Aluminum |2.7 g/cm3 |

|Iron |7.8 g/cm3 |

A block has a mass of 23 grams and a volume of 10 cm3. Using the table above, what material is the block made of?

|A. |Wood |

|B. |Glass |

|C. |Aluminum |

|D. |Iron |

23. A scientific hypothesis:

|A. |is one that can be tested. |

|B. |is a prediction of the outcome of an experiment. |

|C. |may be modified as new evidence becomes available. |

|D. |is sometimes referred to as an educated guess. |

|E. |may be described by all of the above. |

24. Natural laws are:

|A. |rules that explain how all things in the entire universe always behave. |

|B. |a process of discovering the answers to questions. |

|C. |a preliminary explanation. |

|D. |a form of inquiry. |

|E. |laws that mother nature is the judge. |

25. A scientific explanation supported by much evidence collected over a long period of time is a(n):

|A. |hypothesis. |

|B. |deduction. |

|C. |theory. |

|D. |law. |

|E. |expectation. |

26. In order for evidence to be considered scientific evidence, it must be:

|A. |the opinion of an important scientist. |

|B. |objective and repeatable. |

|C. |deduced by a detective. |

|D. |found in a textbook. |

|E. |testable |

27. Once a scientific theory has been accepted:

|A. |its evidence does not need to be repeated. |

|B. |it continues to be tested against new evidence. |

|C. |it can never be changed or revised. |

|D. |it is considered to always be true. |

|E. |a cash prize of 1 million dollars is given to the person that had the original theory. |

28. A control variable is:

|A. |a variable that stays the same throughout an experiment. |

|B. |a variable that is changed in an experiment. |

|C. |the largest, most powerful variable in an experiment. |

|D. |rarely used in scientific experiments. |

|E. |a variable that has control over the other variables. |

29. The application of science to meet human needs and solve problems is called:

|A. |science. |

|B. |engineer. |

|C. |technology. |

|D. |experiment. |

|E. |appliscihunesoprobs. |

30. Why are prototypes developed by engineers?

|A. |To test a design and see if it works |

|B. |To create a conceptual design |

|C. |To publish in a scientific journal |

|D. |To learn the basic principles of how things work |

|E. |To see if it can go professional instead of maintaining amateur status. |

31. How can scientists reduce the bias in their experiments?

|A. |By being truthful in reporting their results |

|B. |By reporting only the results that support their conclusions |

|C. |By getting their results on the news |

|D. |By getting peers to join their side |

|E. |All of the above |

32. Ethics can be defined as

|A. |can be standards of conduct that enable a person to determine what behavior is right in a given situation. |

|B. |can be standards of conduct that enable a person to determine what behavior is wrong in a given situation. |

|C. |must be considered because of the potential help to human population |

|D. |must be considered because of the potential harm to human population |

|E. |All of the above |

33. Which of the following statements gives the best definition of position?

|A. |It is a variable that gives location relative to an origin. |

|B. |It is the distance with a value of zero. |

|C. |It is the distance an object travels divided by the time it takes. |

|D. |It is the distance traveled. |

|E. |It is a title, such as Mr, Mrs, or even Dr. |

34. On a graph, all of the following directions are normally considered to be positive EXCEPT:

|A. |North. |

|B. |East. |

|C. |Left. |

|D. |Up. |

|E. |Right. |

35. Speed is:

|A. |calculated by dividing the distance traveled by the time taken. |

|B. |zero for objects at rest. |

|C. |a measure of how quickly an object gets from one place to another. |

|D. |can have a negative value. |

|E. |All of the above |

36. Speed that does not change is called:

|A. |average speed. |

|B. |constant speed. |

|C. |instant speed. |

|D. |minimum speed. |

|E. |instantaneous speed. |

37. In 1/2 hour, a bicyclist traveled 20 kilometers. What was the bicyclist’s average speed?

|A. |60 km |

|B. |10 km/hr |

|C. |40 km |

|D. |40 km/hr |

|E. |20 km/hr |

38. From home, you walk 6 blocks east and then walk 4 blocks west. Your position traveled is:

|A. |2 blocks. |

|B. |4 blocks. |

|C. |6 blocks. |

|D. |10 blocks. |

|E. |1.5 blocks. |

39. If the average speed of a drag racing car is 0.069 miles per second, how long would it take the car to complete a 1/4 mile (0.25 mile) straight track?

|A. |0.020 seconds |

|B. |0.17 seconds |

|C. |0.28 seconds |

|D. |3.6 seconds |

|E. |3.5 hours |

40. If an automobile travels at 30. m/s for 2.0 minutes, how far has the car traveled?

|A. |15 m |

|B. |60. m |

|C. |1,800 m |

|D. |3,600 m |

|E. |216,000 m |

41. The type of relationship represented between variables in the graph pictured is:

[pic]

|A. |a strong relationship. |

|B. |a weak relationship. |

|C. |an inverse relationship. |

|D. |no relationship. |

|E. |an indirect relationship |

42. On this graph, the independent variable is:

[pic]

|A. |distance. |

|B. |speed. |

|C. |acceleration. |

|D. |the slope of the speed vs. distance curve. |

|E. |meters per second |

43. When constructing a graph, the x-axis is most closely related to:

|A. |the dependent variable. |

|B. |the vertical axis. |

|C. |the independent variable. |

|D. |the slope. |

|E. |the z-axis. |

44. If large changes in the independent variable cause small changes in the dependent variable:

|A. |the relationship is strong. |

|B. |the relationship is inverse. |

|C. |the relationship is weak. |

|D. |there is no relationship between variables. |

|E. |there is an inverse relationship. |

45. Use the graph to predict the speed of the car when the car is at 60 cm.

[pic]

|A. |220 cm/s |

|B. |230 cm/s |

|C. |240 cm/s |

|D. |250 cm/s |

|E. |260 cm/s |

46. The metric unit of force preferred by scientists is the:

|A. |kilogram. |

|B. |newton. |

|C. |mima. |

|D. |pound. |

|E. |cm/s |

47. Weight is a force that depends on mass and:

|A. |friction. |

|B. |gravity. |

|C. |magnetism. |

|D. |energy conservation. |

|E. |acceleration. |

48. Which of the following diagrams shows the force vector -2 N?

[pic]

|A. |A |

|B. |B |

|C. |C |

|D. |D |

|E. |A and B are correct. |

49. Compared to your weight and mass on Earth, if you were on the moon:

|A. |your weight and mass would be less. |

|B. |your weight would be less but your mass would remain the same. |

|C. |your weight would remain the same, but your mass would be less. |

|D. |your weight would increase, but your mass would remain the same. |

50. A force that resists the motion of an object moving across a surface is called:

|A. |static friction. |

|B. |sliding friction. |

|C. |rolling friction. |

|D. |air friction. |

51. Ball bearings decrease friction in rotating motion because:

|A. |they are made of hard steel. |

|B. |they replace sliding friction with rolling friction. |

|C. |they separate surfaces with a cushion of air. |

|D. |they can be made in all sizes to fit different machines. |

52. [pic]

Which free-body diagram shows an object that will accelerate?

|A. |Diagram A |

|B. |Diagram B |

|C. |Diagram C |

|D. |Diagram D |

53. Which of the following is an object in equilibrium?

|A. |A box resting on a table without moving |

|B. |A box being pushed from rest to a speed of 5 cm/s |

|C. |A box falling freely in the air with no strings attached |

|D. |A box thrown up into the air |

54. If the net force on a moving object is zero:

|A. |the object will slow down and stop. |

|B. |the object will change direction. |

|C. |the object will change speed. |

|D. |the object will not change direction or speed. |

55. The inertia of an object is related to its:

|A. |mass and speed. |

|B. |mass and force. |

|C. |mass only. |

|D. |speed only. |

56. The property of matter that resists changes in motion is:

|A. |acceleration. |

|B. |inertia. |

|C. |force. |

|D. |speed. |

57. As the mass of an object is increased, what happens to its inertia?

|A. |It increases |

|B. |It decreases |

|C. |It stays the same |

|D. |Inertia and mass are not related in any way |

58. An object moving with constant speed has:

|A. |a net force greater than zero. |

|B. |a net force equal to zero. |

|C. |a net force less than zero. |

|D. |a constant net force. |

59. An object at rest has:

|A. |both inertia and momentum. |

|B. |neither inertia nor momentum. |

|C. |momentum but no inertia. |

|D. |inertia but no momentum. |

60. A tow truck pulls a 2,000-kg car with a net force of 4,000 N. What is the acceleration of the car?

|A. |0.5 m/s2 |

|B. |2 m/s2 |

|C. |200 m/s2 |

|D. |2,000 m/s2 |

61. A 200-kg rocket accelerates at 50 m/s2. How large is the force required to cause an acceleration of this size?

|A. |1/4 N |

|B. |4 N |

|C. |1,000 N |

|D. |10,000 N |

In the graph below, the acceleration of an object is plotted against the net force applied to the object.

[pic]

Figure 6-2A

62. When a net force of 2 newtons is applied, the object graphed in Figure 6-2A accelerates at:

|A. |1 m/s2 |

|B. |2 m/s2 |

|C. |3 m/s2 |

|D. |4 m/s2 |

63. Different forces were applied to each of two blocks, A and B. The graphs below show the relationship between the force and the acceleration for each block.

[pic]

How does the mass of block A compare to the mass of block B?

|A. |the same. |

|B. |twice as great. |

|C. |half as great. |

|D. |four times as great. |

64. Newton’s third law of motion involves:

|A. |one force acting on one object. |

|B. |a force pair acting on two different objects. |

|C. |a force pair acting on one object. |

|D. |unbalanced forces acting on many objects. |

65. “Every action force creates a reaction force that is equal in strength and opposite in direction.” This statement summarizes Newton’s:

|A. |1st law of motion. |

|B. |2nd law of motion. |

|C. |3rd law of motion. |

|D. |law of gravitational force. |

66. What is the momentum of a 2000-kg car traveling at 20 m/s?

|A. |0 kg·m/sec |

|B. |0.001 kg·m/sec |

|C. |100 kg·m/sec |

|D. |40,000 kg·m/sec |

67. If you go twice as fast, your kinetic energy becomes:

|A. |2 times smaller. |

|B. |4 times smaller. |

|C. |2 times bigger. |

|D. |4 times bigger. |

68. Energy is measured in:

|A. |newtons. |

|B. |joules. |

|C. |kg/m2 |

|D. |kg•m/s2 |

69. An extended spring stores:

|A. |radiant energy. |

|B. |potential energy. |

|C. |kinetic energy. |

|D. |chemical energy. |

70. Energy can be thought of as stored ____.

|A. |Force |

|B. |Mass |

|C. |Weight |

|D. |Work |

71. Kinetic energy increases with:

|A. |mass and distance. |

|B. |mass and speed. |

|C. |speed and distance. |

|D. |speed and time. |

72. What happens to the potential energy of a car parked at the top of a hill if you double the mass of the car?

|A. |It increases by 4 times |

|B. |It increases by 2 times |

|C. |It decreases by 4 times |

|D. |It decreases by 2 times. |

73. Natalie lifts a 15-kg rock from the ground onto a 1.5 meter high wall. What is the amount of potential energy she has given the rock?

|A. |10 joules |

|B. |23 joules |

|C. |220 joules |

|D. |2,200 joules |

74. What is the kinetic energy of a go-cart with a mass of 150 kilograms and a speed of 20. m/s?

|A. |1,500 J |

|B. |3,000 J |

|C. |30,000 J |

|D. |60,000 J |

75. On what does kinetic energy depend?

|A. |Mass and velocity |

|B. |Gravity and mass |

|C. |Gravity and height |

|D. |Velocity and gravity |

76. When energy in a system is transformed, what happens to the total amount of energy in the system?

|A. |It increases. |

|B. |It decreases. |

|C. |It stays the same. |

|D. |It goes to zero. |

77. A bowler lifts her bowling ball a distance of 0.5 meters using 35 joules of energy. What is the mass of her bowling ball?

|A. |3 kg |

|B. |7 kg |

|C. |17.5 kg |

|D. |35 kg |

78. Friction between two surfaces transforms energy of motion directly to:

|A. |electric energy. |

|B. |thermal energy. |

|C. |chemical energy. |

|D. |nuclear energy. |

79. As an object is raised to a higher position, which type of energy increases?

|A. |kinetic energy. |

|B. |potential energy. |

|C. |heat energy. |

|D. |light energy. |

80. Work may be measured using units of:

|A. |watts. |

|B. |newtons. |

|C. |joules. |

|D. |newtons per second. |

81. Which of the following use the same units of measurement?

|A. |Power and work |

|B. |Force and work |

|C. |Energy and work |

|D. |Power and energy |

82. What is the most work that can be done with 100 joules of energy?

|A. |10 J |

|B. |100 J |

|C. |1,000 J |

|D. |10,000 J |

83. Calculate the work needed to push a block with 4 newtons of force a distance of 10 meters.

|A. |0.4 joules |

|B. |2.5 joules |

|C. |4 joules |

|D. |40 joules |

84. If you do 500 joules of work using a force of 50 newtons, over what distance was the work accomplished?

|A. |0.1 m |

|B. |5 m |

|C. |10 m |

|D. |25,000 m |

85. Jake, who weighs 680 newtons, climbs a 6 meter ladder in 8 seconds. What was Jake’s power?

|A. |510 watts |

|B. |4080 watts |

|C. |5440 watts |

|D. |32640 watts |

86. The efficiency of a machine is usually expressed in:

|A. |joules. |

|B. |watts. |

|C. |newton-meters. |

|D. |percent. |

87. A unit used to measure power is the:

|A. |joule. |

|B. |newtons per second. |

|C. |newton-meter. |

|D. |watt. |

88. How much power is necessary to do 50 joules of work in 5 seconds?

|A. |5 watts |

|B. |10 watts |

|C. |50 watts |

|D. |250 watts |

89. The efficiency of a modern bicycle is 95 percent. If you exert 200 joules in pedaling a bicycle on level ground, what is the work output?

|A. |95 joules |

|B. |105 joules |

|C. |190 joules |

|D. |295 joules |

90. An incandescent light bulb uses 60 joules of electrical energy every second. Due to heat loss, the energy available for light is reduced to only 6 joules per second. If this bulb is used to keep eggs warm in an incubator, about how efficient is the light bulb at producing HEAT?

|A. |10 percent. |

|B. |20 percent. |

|C. |60 percent. |

|D. |90 percent. |

91. A simple machine can multiply:

|A. |forces only. |

|B. |energy only. |

|C. |forces and energy. |

|D. |forces and speed. |

92. Which of the following is NOT considered a simple machine?

|A. |Wheel and axle |

|B. |Electric motor |

|C. |Lever |

|D. |Rope and pulley |

93. What is required to get work out of a machine?

|A. |Friction |

|B. |Efficiency |

|C. |Input work |

|D. |Gears |

94. A lever rotates around a fixed point called a:

|A. |ball bearing. |

|B. |gear. |

|C. |pulley. |

|D. |fulcrum. |

95. Mechanical advantage can be defined as the ratio of:

|A. |work input to work output. |

|B. |work output to work input. |

|C. |output force to input force. |

|D. |input force to output force. |

96. The simple machine that operates as a ramp that curves around a shaft is a:

|A. |rope and pulley system. |

|B. |screw. |

|C. |lever. |

|D. |gear. |

[pic]

Figure 9-1A

97. In the picture of the crowbar, which letter shows the fulcrum?

|A. |A |

|B. |B |

|C. |C |

|D. |None of the above |

98. In the picture of the crowbar, which letter shows the input force?

|A. |A |

|B. |B |

|C. |C |

|D. |None of the above |

[pic]

Figure 9-1

99. The human arm is an example of which class of lever?

[pic]

|A. |First class |

|B. |Second class |

|C. |Third class |

|D. |None of the above |

100. A simple machine has an input force of 10 newtons and an output force of 100 newtons. What is the mechanical advantage of the simple machine?

|A. |0.1 |

|B. |1 |

|C. |10 |

|D. |90 |

Physical Science Comprehensive Spring 2011 Test

Answer Section

MULTIPLE CHOICE

1. ANS: D REF: Technology

2. ANS: B REF: 1.5

3. ANS: D DIF: basic REF: section 1.1

4. ANS: B DIF: basic REF: section 1.1

5. ANS: C DIF: intermediate REF: section 1.2

6. ANS: A DIF: basic REF: section 1.3

7. ANS: A DIF: basic REF: section 1.3

8. ANS: C DIF: basic REF: section 1.4

9. ANS: C DIF: intermediate REF: section 1.2

10. ANS: A DIF: intermediate REF: section 1.4

11. ANS: C DIF: intermediate REF: section 1.4

12. ANS: A DIF: basic REF: section 2.1

13. ANS: D DIF: basic REF: section 2.1

14. ANS: C DIF: basic REF: section 2.1

15. ANS: B DIF: basic REF: section 2.1

16. ANS: A DIF: intermediate REF: section 2.1

17. ANS: C DIF: intermediate REF: section 2.2

18. ANS: A DIF: intermediate REF: section 2.1

19. ANS: A DIF: advanced REF: section 2.1

20. ANS: D DIF: basic REF: section 2.2

21. ANS: C DIF: intermediate REF: section 2.2

22. ANS: B DIF: intermediate REF: section 2.2

23. ANS: E DIF: basic REF: section 3.1

24. ANS: A DIF: basic REF: section 3.1

25. ANS: C DIF: basic REF: section 3.1

26. ANS: B DIF: basic REF: section 3.1

27. ANS: B DIF: intermediate REF: section 3.1

28. ANS: A DIF: basic REF: section 3.2

29. ANS: C DIF: basic REF: section 3.3

30. ANS: A DIF: basic REF: section 3.3

31. ANS: A DIF: intermediate REF: section 3.3

32. ANS: E REF: connection

33. ANS: A DIF: basic REF: section 4.1

34. ANS: C DIF: basic REF: section 4.1

35. ANS: E DIF: basic REF: section 4.1

36. ANS: B DIF: basic REF: section 4.1

37. ANS: D DIF: intermediate REF: section 4.1

38. ANS: A DIF: intermediate REF: section 4.1

39. ANS: D DIF: intermediate REF: section 4.1

40. ANS: C DIF: advanced REF: section 4.1

41. ANS: D DIF: basic REF: section 4.2

42. ANS: A DIF: basic REF: section 4.2

43. ANS: C DIF: basic REF: section 4.2

44. ANS: C DIF: basic REF: section 4.2

45. ANS: C DIF: intermediate REF: section 4.2

46. ANS: B DIF: basic REF: section 5.1

47. ANS: B DIF: basic REF: section 5.1

48. ANS: C DIF: intermediate REF: section 5.1

49. ANS: B DIF: intermediate REF: section 5.1

50. ANS: B DIF: basic REF: section 5.2

51. ANS: B DIF: intermediate REF: section 5.2

52. ANS: C DIF: intermediate REF: section 5.3

53. ANS: A DIF: intermediate REF: section 5.3

54. ANS: D DIF: intermediate REF: section 5.3

55. ANS: C DIF: basic REF: section 6.1

56. ANS: B DIF: basic REF: section 6.1

57. ANS: A DIF: basic REF: section 6.1

58. ANS: B DIF: basic REF: section 6.1

59. ANS: D DIF: advanced REF: section 6.1 | section 6.3

60. ANS: B DIF: intermediate REF: section 6.2

61. ANS: D DIF: intermediate REF: section 6.2

62. ANS: B DIF: intermediate REF: section 6.2

63. ANS: C DIF: advanced REF: section 6.2

64. ANS: B DIF: basic REF: section 6.3

65. ANS: C DIF: basic REF: section 6.3

66. ANS: D DIF: intermediate REF: section 6.3

67. ANS: D DIF: basic REF: section 7.1

68. ANS: B DIF: basic REF: section 7.1

69. ANS: B DIF: basic REF: section 7.1

70. ANS: D DIF: basic REF: section 7.1

71. ANS: B DIF: basic REF: section 7.1

72. ANS: B DIF: intermediate REF: section 7.1

73. ANS: C DIF: intermediate REF: section 7.1

74. ANS: C DIF: intermediate REF: section 7.1

75. ANS: A DIF: intermediate REF: section 7.1

76. ANS: C DIF: intermediate REF: section 7.2

77. ANS: B DIF: intermediate REF: section 7.2

78. ANS: B DIF: intermediate REF: section 7.2

79. ANS: B DIF: intermediate REF: section 7.3

80. ANS: C DIF: basic REF: section 8.1

81. ANS: C DIF: basic REF: section 8.1

82. ANS: B DIF: basic REF: section 8.1

83. ANS: D DIF: intermediate REF: section 8.1

84. ANS: C DIF: intermediate REF: section 8.1

85. ANS: A DIF: intermediate REF: section 8.1

86. ANS: D DIF: basic REF: section 8.2

87. ANS: D DIF: basic REF: section 8.2

88. ANS: B DIF: intermediate REF: section 8.2

89. ANS: C DIF: intermediate REF: section 8.2

90. ANS: A DIF: advanced REF: section 8.2

91. ANS: D DIF: basic REF: section 9.1

92. ANS: B DIF: basic REF: section 9.1

93. ANS: C DIF: basic REF: section 9.1

94. ANS: D DIF: basic REF: section 9.1

95. ANS: C DIF: basic REF: section 9.2

96. ANS: B DIF: basic REF: section 9.2

97. ANS: C DIF: basic REF: section 9.2

98. ANS: B DIF: basic REF: section 9.2

99. ANS: C DIF: intermediate REF: section 9.2

100. ANS: C DIF: intermediate REF: section 9.2

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