1. Which of the following is NOT a base unit?
Meter
Kilogram
Liter
Kelvin
Ampere
Answer: c

2. Which of the following is NOT a base unit?
Meter
Kilogram
Liter
Kelvin
Ampere
Answer: c

3. What is the density of a solution that has a mass of 13
What is the density of a solution that has a mass of 13.5 g and a volume of 15.8 mL?
1.17 g/mL
0.213 g/mL
4.69 g/mL
0.854 g/mL
Answer: d

4. What is the density of a solution that has a mass of 13
What is the density of a solution that has a mass of 13.5 g and a volume of 15.8 mL?
1.17 g/mL
0.213 g/mL
4.69 g/mL
0.854 g/mL
Answer: d

5. Which of the following has the largest density?
A material that has a mass of 10.0 g and a volume of 2.00 L
A material that has a mass of 5.00 g and a volume of 10.0 cm3
A material that sinks in ethanol but floats on water
Answer: c

6. Which of the following has the largest density?
A material that has a mass of 10.0 g and a volume of 2.00 L
A material that has a mass of 5.00 g and a volume of 10.0 cm3
A material that sinks in ethanol but floats on water
Answer: c

7. When reading a graduated cylinder, read the volume at the bottom of the meniscus. What volume of liquid is in the graduated cylinder?
73 mL
73.7 mL
73.70 mL
74 mL
74.0
Answer: e

8. When reading a graduated cylinder, read the volume at the bottom of the meniscus. What volume of liquid is in the graduated cylinder?
73 mL
73.7 mL
73.70 mL
74 mL
74.0
Answer: e

9. Which of the following numbers has four significant figures?
0.003
0.7180
0.508
Answer: b

10. Which of the following numbers has four significant figures?
0.003
0.7180
0.508
Answer: b

11. Calculate the following with the correct number of significant figures.2
1.4
2.2
1.36
2.23
Answer: c

12. Calculate the following with the correct number of significant figures.2
1.4
2.2
1.36
2.23
Answer: c

13. The data is both accurate and precise.
A student measures the mass of a penny four times and records the following data. What can be said about the data if the actual mass of the penny is g?
Trial
Number
Mass, g 1
2.5104 2
2.5106 3
2.5102 4
2.5109
The data is both accurate and precise.
The data is neither accurate nor precise.
The data is accurate, but not precise.
The data is not accurate, but it is precise.
Answer: d

14. The data is both accurate and precise.
A student measures the mass of a penny four times and records the following data. What can be said about the data if the actual mass of the penny is g?
Trial
Number
Mass, g 1
2.5104 2
2.5106 3
2.5102 4
2.5109
The data is both accurate and precise.
The data is neither accurate nor precise.
The data is accurate, but not precise.
The data is not accurate, but it is precise.
Answer: d

15. How many ounces of mercury are in 1. 0 cubic meters of mercury
How many ounces of mercury are in 1.0 cubic meters of mercury? Hint: the density of mercury is g/cm3 and 1 ounce = 28.35g.
6.5 × 106 ounces
4.8 × 105 ounces
5.2 × 104 ounces
6.5 × 104 ounces
48 ounces
Answer: b

16. How many ounces of mercury are in 1. 0 cubic meters of mercury
How many ounces of mercury are in 1.0 cubic meters of mercury? Hint: the density of mercury is g/cm3 and 1 ounce = 28.35g.
6.5 × 106 ounces
4.8 × 105 ounces
5.2 × 104 ounces
6.5 × 104 ounces
48 ounces
Answer: b

17. A cube has an edge length of 6. 4 in
A cube has an edge length of 6.4 in. What is the volume of the cube in cm3?
4.3 × 103 cm3
6.7 × 102 cm3
16 cm3
1.0 × 102 cm3
Answer: a

18. A cube has an edge length of 6. 4 in
A cube has an edge length of 6.4 in. What is the volume of the cube in cm3?
4.3 × 103 cm3
6.7 × 102 cm3
16 cm3
1.0 × 102 cm3
Answer: a

19. Determine the mass of 2. 5 cups of water if the density of water is 1
Determine the mass of 2.5 cups of water if the density of water is 1.00 g/ cm3 and 1 cup = 240 mL.
2.5 g
6.0 × 102 g
1.0 × 10–2 g
2.4 × 102 g
1.0 × 102 g
Answer: b

20. Determine the mass of 2. 5 cups of water if the density of water is 1
Determine the mass of 2.5 cups of water if the density of water is 1.00 g/ cm3 and 1 cup = 240 mL.
2.5 g
6.0 × 102 g
1.0 × 10–2 g
2.4 × 102 g
1.0 × 102 g
Answer: b

21. A cube of aluminum (density = 2. 70 g/mL) has a mass of 17. 2 g
A cube of aluminum (density = 2.70 g/mL) has a mass of 17.2 g. What is the edge length of the cube?
6.34 cm
1.85 cm
2.58 cm
3.59 cm
Answer: b

22. A cube of aluminum (density = 2. 70 g/mL) has a mass of 17. 2 g
A cube of aluminum (density = 2.70 g/mL) has a mass of 17.2 g. What is the edge length of the cube?
6.34 cm
1.85 cm
2.58 cm
3.59 cm
Answer: b

23. Theories are validated by
observations.
models.
laws.
experiments.
guesses.
Answer: D

24. Theories are validated by
observations.
models.
laws.
experiments.
guesses.
Answer: D

25. A brief statement that summarizes past observations and predicts future ones is called a
scientific theory.
scientific law.
hypothesis.
fact.
experiment.
Answer: B

26. A brief statement that summarizes past observations and predicts future ones is called a
scientific theory.
scientific law.
hypothesis.
fact.
experiment.
Answer: B

27. The scientific method emphasizes
observations and experimentation.
facts and scientific laws.
theories and opinions.
hypotheses and models.
None of the above
Answer: A

28. The scientific method emphasizes
observations and experimentation.
facts and scientific laws.
theories and opinions.
hypotheses and models.
None of the above
Answer: A

29. Which term best fits the following definition: “A theory before it has become well established”?
Observation
Scientific method
Scientific law
Scientific theory
Hypothesis
Answer: E

30. Which term best fits the following definition: “A theory before it has become well established”?
Observation
Scientific method
Scientific law
Scientific theory
Hypothesis
Answer: E

31. Which of the following would NOT be considered matter?
Water
Sugar
Light
Gasoline
Sand
Answer: C

32. Which of the following would NOT be considered matter?
Water
Sugar
Light
Gasoline
Sand
Answer: C

33. What is the first step in the scientific method?
Observe some aspect of nature.
Develop a scientific hypothesis.
Design a detailed experiment.
Check the results in triplicate.
Develop a scientific law to summarize observations.
Answer: A

34. What is the first step in the scientific method?
Observe some aspect of nature.
Develop a scientific hypothesis.
Design a detailed experiment.
Check the results in triplicate.
Develop a scientific law to summarize observations.
Answer: A

35. All matter contains the same mass.
Which of the following statements best describes the Law of Conservation of Mass?
All matter contains the same mass.
Matter can be converted to less massive things.
Matter can be converted to more massive things.
Mass is neither created nor destroyed in a chemical reaction.
Mass can be either created or saved in a chemical reaction.
Answer: D

36. All matter contains the same mass.
Which of the following statements best describes the Law of Conservation of Mass?
All matter contains the same mass.
Matter can be converted to less massive things.
Matter can be converted to more massive things.
Mass is neither created nor destroyed in a chemical reaction.
Mass can be either created or saved in a chemical reaction.
Answer: D

37. Which of the following can be classified as matter?
Lead
Salt
Car
Chair
All of the above
Answer: E

38. Which of the following can be classified as matter?
Lead
Salt
Car
Chair
All of the above
Answer: E

39. Which one of the following scientists stated and studied the Law of Conservation of Mass?
Dalton
Lavoisier
Proust
Rutherford
Aristotle
Answer: B

40. Which one of the following scientists stated and studied the Law of Conservation of Mass?
Dalton
Lavoisier
Proust
Rutherford
Aristotle
Answer: B

41. Which scientist proposed that all matter was composed of small, indestructible particles called atoms?
Dalton
Lavoisier
Proust
Rutherford
Aristotle
Answer: A

42. Which scientist proposed that all matter was composed of small, indestructible particles called atoms?
Dalton
Lavoisier
Proust
Rutherford
Aristotle
Answer: A

43. Which of the following is an example of a scientific theory?
The addition of battery acid to sugar results in the formation of a black substance and smoke.
Gases consist of molecules in constant random motion.
The burning of wood results in a flame, heat, smoke, and ash.
Copper metal conducts electricity.
None of the above
Answer: B

44. Which of the following is an example of a scientific theory?
The addition of battery acid to sugar results in the formation of a black substance and smoke.
Gases consist of molecules in constant random motion.
The burning of wood results in a flame, heat, smoke, and ash.
Copper metal conducts electricity.
None of the above
Answer: B

45. Which of the following is an example of an observation?
Energy may be converted from one form to another, but the total quantity of energy remains constant.
Gases consist of molecules in constant random motion.
The burning of wood results in a light, heat, a gas, and a new solid.
A pure compound always contains definite or constant proportions of elements by mass.
None of the above
Answer: C

46. Which of the following is an example of an observation?
Energy may be converted from one form to another, but the total quantity of energy remains constant.
Gases consist of molecules in constant random motion.
The burning of wood results in light, heat, a gas, and a new solid.
A pure compound always contains definite or constant proportions of elements by mass.
None of the above
Answer: C

47. Which of the following is a scientific law?
Energy may be converted from one form to another, but the total quantity of energy remains constant.
Gases consist of molecules in constant random motion.
The burning of wood results in a flame, heat, smoke, and ash.
At absolute zero, the motion of all atoms stops.
None of the above
Answer: A

48. Which of the following is a scientific law?
Energy may be converted from one form to another, but the total quantity of energy remains constant.
Gases consist of molecules in constant random motion.
The burning of wood results in a flame, heat, smoke, and ash.
At absolute zero, the motion of all atoms stops.
None of the above
Answer: A

49. Convert 0.000459 to scientific notation. A. 4.59 × 104 B. 0.459 × 103
4.59 × 10−3
4.59 × 10−4
4.59 × 10−5
Answer: D

50. Convert 0.000459 to scientific notation. A. 4.59 × 104 B. 0.459 × 103
4.59 × 10−3
4.59 × 10−4
4.59 × 10−5
Answer: D

51. The number 5.43 × 10−6 L can also be written as 5.43 kL. 5.43 mL.
5.43 nL.
5.43 pL.
Answer: C

52. The number 5.43 × 10−6 L can also be written as 5.43 kL. 5.43 mL.
5.43 nL.
5.43 pL.
Answer: C

53. Convert 3.23 × 103 to decimal notation. 3.23 32.3 323 0.00323 3230
Answer: E

54. Convert 3.23 × 103 to decimal notation. 3.23 32.3 323 0.00323 3230
Answer: E

55. What is the result of the following problem expressed in scientific notation with the correct number of significant figures? (6.05 × 106) ÷ (4.020 × 10−9) =
1.50 × 1015
1.51 × 1015
1.505 × 1015
2.43 × 10−2
1.51 × 103
Answer: A

56. What is the result of the following problem expressed in scientific notation with the correct number of significant figures? (6.05 × 106) ÷ (4.020 × 10−9) =
1.50 × 1015
1.51 × 1015
1.505 × 1015
2.43 × 10−2
1.51 × 103
Answer: A

57. What is the result of the following problem expressed in scientific notation with the correct number of significant figures? (6.051 × 106) ÷ (4.020 × 10−9) × ( ) =
2.08 × 10−3
1.764 × 1016
1.76 × 1016
1.76 × 10−16
1.764 × 10−16
Answer: B

58. What is the result of the following problem expressed in scientific notation with the correct number of significant figures? (6.051 × 106) ÷ (4.020 × 10−9) × ( ) =
2.08 × 10−3
1.764 × 1016
1.76 × 1016
1.76 × 10−16
1.764 × 10−16
Answer: B

59. What is the result of the following problem expressed with the correct number of significant figures?
20.15 − =
9.6
9.58
9.581
30.72
10.
Answer: B

60. What is the result of the following problem expressed with the correct number of significant figures?
20.15 − =
9.6
9.58
9.581
30.72
10.
Answer: B

61. How many mL are in 45.1 cm3? 0.00450 mL 4.51 mL 0.451 mL 45.1 mL
Answer: D

62. How many mL are in 45.1 cm3? 0.00450 mL 4.51 mL 0.451 mL 45.1 mL
Answer: D

63. Convert 1.500 L to cm3. 1.5 × 103 cm3 1.500 cm3 1.5 × 10−3 cm3
Answer: D

64. Convert 1.500 L to cm3. 1.5 × 103 cm3 1.500 cm3 1.5 × 10−3 cm3
Answer: D

65. What are the two parts of a number written in scientific notation?
number and unit
decimal and exponential
decimal and unit
exponent and exponential
Answer: B

66. What are the two parts of a number written in scientific notation?
number and unit
decimal and exponential
decimal and unit
exponent and exponential
Answer: B

67. Why do scientists use scientific notation? to confuse students
to write very large numbers simply
to write very small numbers simply
all of the above
two of the above
Answer: E

68. Why do scientists use scientific notation? to confuse students
to write very large numbers simply
to write very small numbers simply
all of the above
two of the above
Answer: E

69. Which digit(s) is/are certain in the measurement of 98.6 °F? 98 98.6 6
Answer: A

70. Which digit(s) is/are certain in the measurement of 98.6 °F? 98 98.6 6
Answer: A

71. How many significant figures are in 0.00500670? 3 5 6 8 9
Answer: C

72. How many significant figures are in 0.00500670? 3 5 6 8 9
Answer: C

73. What are the fundamental SI units of length, mass, time, and temperature respectively?
km, kg, s, K
m, g, s, °C
m, g, s, K
m, kg, s, °C
m, kg, s, K
Answer: E

74. What are the fundamental SI units of length, mass, time, and temperature respectively?
km, kg, s, K
m, g, s, °C
m, g, s, K
m, kg, s, °C
m, kg, s, K
Answer: E

75. What is the metric prefix for the factor 10−9? centi- nano- pico-
milli-
micro-
Answer: B

76. What is the metric prefix for the factor 10−9? centi- nano- pico-
milli-
micro-
Answer: B

77. Convert 155 ft2 to square centimeters. 4.72 × 103 cm2 3.46 × 103 cm2
Answer: D

78. Convert 155 ft2 to square centimeters. 4.72 × 103 cm2 3.46 × 103 cm2
Answer: D

79. What is the mass of a sample of lead that has a density of 11
What is the mass of a sample of lead that has a density of 11.4 g/mL and displaces 20.1 mL of water?
229 g
0.567 g
1.76 g
11.4 g
2.30 × 10−2 g
Answer: A

80. What is the mass of a sample of lead that has a density of 11
What is the mass of a sample of lead that has a density of 11.4 g/mL and displaces 20.1 mL of water?
229 g
0.567 g
1.76 g
11.4 g
2.30 × 10−2 g
Answer: A

81. What is the identity of an unknown object that has a mass of 1
What is the identity of an unknown object that has a mass of 1.08 kg and displaces 50.5 cm3 of water? (See Table 2.4)
copper
lead
gold
aluminum
platinum
Answer: E

82. What is the identity of an unknown object that has a mass of 1
What is the identity of an unknown object that has a mass of 1.08 kg and displaces 50.5 cm3 of water? (See Table 2.4)
copper
lead
gold
aluminum
platinum
Answer: E

83. Convert 1.500 km3 to liters. 1.500 L 1.500 × 106 L 1.500 × 109 L
Answer: B

84. Convert 1.500 km3 to liters. 1.500 L 1.500 × 106 L 1.500 × 109 L
Answer: B

85. Which of the following is a frequently used unit for the density of liquids and solids?
g/L
kg/L
g/mL
cm3/mL
g/m3
Answer: C

86. Which of the following is a frequently used unit for the density of liquids and solids?
g/L
kg/L
g/mL
cm3/mL
g/m3
Answer: C

87. There is not enough information given for an answer.
What does the positive exponent tell you about the size of the number × 1023?
It is less than one.
It is less than
It is equal to zero.
It is greater than 1.
There is not enough information given for an answer.
Answer: D

88. There is not enough information given for an answer.
What does the positive exponent tell you about the size of the number × 1023?
It is less than one.
It is less than
It is equal to zero.
It is greater than 1.
There is not enough information given for an answer.
Answer: D

89. In Australia, the highway speed limit is posted at 100. km/hr
In Australia, the highway speed limit is posted at 100. km/hr. What is this in mi/hr?
100. mi/hr
161 mi/hr
55.5 mi/hr
75.2 mi/hr
62.1 mi/hr
Answer: E

90. In Australia, the highway speed limit is posted at 100. km/hr
In Australia, the highway speed limit is posted at 100. km/hr. What is this in mi/hr?
100. mi/hr
161 mi/hr
55.5 mi/hr
75.2 mi/hr
62.1 mi/hr
Answer: E

91. The gas mileage of a compact car in Europe is 15 km/L
The gas mileage of a compact car in Europe is 15 km/L. How many miles per gallon would this vehicle obtain in the United States?
(Note: 1 U.S. gal = L
15 mi/gal
30. mi/gal
35 mi/gal
42 mi/gal
55 mi/gal
Answer: C

92. The gas mileage of a compact car in Europe is 15 km/L
The gas mileage of a compact car in Europe is 15 km/L. How many miles per gallon would this vehicle obtain in the United States?
(Note: 1 U.S. gal = L)
15 mi/gal
30. mi/gal
35 mi/gal
42 mi/gal
55 mi/gal
Answer: C

93. (Note: 1 gal = 3.785 L; $1 Australian = $0.7597 U.S.)
While driving in Australia, you fill your car with 55.0 L of gas costing $82.50 (Australian). What is the equivalent cost per gallon in U.S. dollars?
(Note: 1 gal = L; $1 Australian = $ U.S.)
$0.301
$7.47
$3.99
$4.31
$2.76
Answer: D

94. (Note: 1 gal = 3.785 L; $1 Australian = $0.7597 U.S.)
While driving in Australia, you fill your car with 55.0 L of gas costing $82.50 (Australian). What is the equivalent cost per gallon in U.S. dollars?
(Note: 1 gal = L; $1 Australian = $ U.S.)
$0.301
$7.47
$3.99
$4.31
$2.76
Answer: D

95. What are the two important parts of a measurement?
The number and the unit
The number and the exponent
The number and the decimal
The decimal and exponent
Answer: A

96. What are the two important parts of a measurement?
The number and the unit
The number and the exponent
The number and the decimal
The decimal and exponent
Answer: A

97. How many significant figures are in 1.0800? 3 4 2 5 None of the above
Answer: D

98. How many significant figures are in 1.0800? 3 4 2 5 None of the above
Answer: D

99. What is the meaning of the metric prefix micro-? 10−6 10−9 103 106
10−2
Answer: A

100. What is the meaning of the metric prefix micro-? 10−6 10−9 103 106
10−2
Answer: A

101. How many inches are in 16.3 cm? 41.4 in 6.4 in 0.156 in 6.42 in
Answer: D

102. How many inches are in 16.3 cm? 41.4 in 6.4 in 0.156 in 6.42 in
Answer: D

103. How many feet are in 0.4734 km? 1.55 × 102 ft 5.681 ft 1.5531 × 103 ft
Answer: E

104. How many feet are in 0.4734 km? 1.55 × 102 ft 5.681 ft 1.5531 × 103 ft
Answer: E

105. How many cubic feet are in 1.2 yd3? 3.6 yd3 32 yd3 0.40 yd3 2.4 yd3
None of the above
Answer: B

106. How many cubic feet are in 1.2 yd3? 3.6 yd3 32 yd3 0.40 yd3 2.4 yd3
None of the above
Answer: B

107. What is the volume in liters of 54
What is the volume in liters of g of a liquid with a density of g/mL?
57.36 L L
5.736 × 10−2 L
0.574 L
573.6 L
Answer: C

108. What is the volume in liters of 54
What is the volume in liters of g of a liquid with a density of g/mL?
57.36 L L
5.736 × 10−2 L
0.574 L
573.6 L
Answer: C