Practice Test

Name: ________________________ Class: ___________________ Date: __________
ID: A
Measurement Unit Review
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. What is the measurement 1042 L rounded off to two significant digits?
a.
1.0  10 3 L
c.
1050 L
b.
1040 L
d.
1.1  10 3 L
____
2. Which of the following observations is quantitative?
a. The liquid turns blue litmus paper red.
b. The liquid boils at 100C.
c. The liquid tastes bitter.
d. The liquid is cloudy.
____
3. When 24 copper pennies are submerged in water, the pennies displace 8.26 cm 3 of water. If the combined
mass of the pennies is 73.86 g, what is the density of copper?
a. 0.112 g/cm3
b. 1.34 g/cm3
c. 8.94 g/cm3
d. 32.8 g/cm3
e. 107 g/cm3
____
4. Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.
a.
10 mm 2
c.
11.0 mm 2
b.
11 mm 2
d.
11.00 mm 2
____
5. You can identify a metal by carefully determining its density. A 2.166 g piece of an unknown metal is 1.50
cm long, 0.550 cm wide, and 0.250 cm thick. What is a possible identity of the element?
a. silver, 10.5 g/cm3
b. iridium, 22.4 g/cm3
c. platinum, 21.4 g/cm3
d. palladium, 12.0 g/cm3
e. none of the above
____
6. Convert 5.000  10-2 meters to millimeters and express the answer in standard notation using the correct
number of significant figures.
a. 50 mm
b. 50.0 mm
c. 50.00 mm
d. 500 nm
e. 5000 mm
____
7. Which of the following units is NOT an official SI unit?
a. kilogram
c. mole
b. ampere
d. liter
8
Name: ________________________
ID: A
____
8. Which of the following is the greatest mass?
a. 2.3  109 pg
b. 1.5  108 ng
c. 6.6  105 g
d. 8.4  102 mg
e. 3.0  10-1 g
____
9. When 5.7 m is divided by 2 s, the quotient is correctly reported as
a. 2.8 m/s.
c. 2.9 m/s.
b. 2.85 m/s.
d. 3 m/s.
____ 10. The capacity of a Florence flask is 250 mL. Its capacity in liters expressed in scientific notation is
c. 2.5  101 L.
a. 2.5  10–2 L.
–1
b. 2.5  10 L.
d. 2.5  102 L.
____ 11. The SI base unit for length is the
a. meter.
b. millimeter.
c.
d.
centimeter.
kilometer.
____ 12. Which is NOT an appropriate unit for measuring density?
a. g/cm
c. kg/L
b. g/ml
d. g/L
____ 13. How many significant figures are in the measurement 811.40 grams?
a. two
c. four
b. three
d. five
____ 14. The dimensions of a box are 12 inch by 11 inch by 5.5 inch. Calculate the volume of the box in cm 3. There is
2.54 cm per inch.
a. 44 cm3
b. 2.8  102 cm3
c. 1.8  103 cm3
d. 4.7  103 cm3
e. 1.2  104 cm3
____ 15. Which is the correct measurement for location marked by the arrow?
a.
b.
50.2
51.8
c.
d.
52
51
____ 16. When 64.4 is divided by 2.00, the correct number of significant figures in the result is
a. 1.
c. 4.
b. 3.
d. 6.
____ 17. What is the measurement 111.009 mm rounded off to four significant digits?
a. 111 mm
c. 111.01 mm
b. 111.0 mm
d. 110 mm
2
Name: ________________________
ID: A
____ 18. The average distance between the Earth and the moon is 386 000 km. Expressed in scientific notation, this
distance is written as
a. 386  103 km.
c. 3.9  105 km.
4
b. 39  10 km.
d. 3.86  105 km.
____ 19. The product of 13 cm and 5.7 cm is correctly reported as
a. 74 cm2.
c. 74.1 cm2.
2
b. 74.0 cm .
d. 75 cm2.
____ 20. A bottle contains 3.100 mL of a liquid. The total mass of the bottle and the liquid together is 6.300 g. The
mass of the empty bottle is 4.240 g. What is the density of the liquid?
a. 0.665 g/mL
c. 1.505 g/mL
b. 1.368 g/mL
d. 2.032 g/mL
____ 21. Which of these measurements has only nonsignificant zeros?
a. 0.0037 mL
c. 400. mL
b. 60.0 mL
d. 506 mL
____ 22. How many minutes are in 1 week?
a. 168 min
b. 1440 min
c.
d.
10 080 min
100 800 min
____ 23. All of the following are steps in the scientific method except
a. observing and recording data.
b. forming a hypothesis.
c. discarding data inconsistent with the hypothesis.
d. developing a model based on experimental results.
____ 24. The density of acetic acid is 1.05 g/mL. What is the volume of 327 g of acetic acid?
a. 2.91  10-3 mL
b. 3.21  10-3 mL
c. 2.62  102 mL
d. 3.11  102 mL
e. 3.43  102 mL
____ 25. The number of significant figures in the measurement 0.000 305 kg is
a. 2.
c. 6.
b. 3.
d. 7.
____ 26. The accepted value for a quantity is 5.67 g. If the measured value is 5.89 g, what is the percent error?
a. 1.04%
c. 3.74%
b. 3.74%
d. 3.88%
3
Name: ________________________
Prefix
mega (M)
kilo (k)
deci (d)
centi (c)
milli (m)
micro ()
nano (n)
pico (p)
ID: A
Commonly Used Metric Prefixes
Meaning
1 million times larger than the unit it precedes
1000 times larger than the unit it precedes
10 times smaller than the unit it precedes
100 times smaller than the unit it precedes
1000 times smaller than the unit it precedes
1 million times smaller than the unit it precedes
1000 million times smaller than the unit it precedes
1 trillion times smaller than the unit it precedes
Factor
10 6
10 3
10 1
10 2
10 3
10 6
10 9
10 12
____ 27. Which of the following equalities is NOT correct? Use the table above to help you.
a.
b.
100 cg = 1 g
1000 mm = 1 m
c.
d.
1 cm 3 = 1 mL
10 kg = 1 g
____ 28. What is the quantity 0.0075 meters expressed in centimeters? Use the table above to help you.
a. 0.075 cm
c. 7.5 cm
b. 0.75 cm
d. 70.5 cm
____ 29. How many significant figures are in the measurement 0.003 4 kg?
a. two
c. five
b. four
d. This cannot be determined.
____ 30. What is the result of adding 2.5  10 3 and 3.5  10 2 ?
a.
2.9  10 3
c.
2.9  10 2
b.
6.0  10 3
d.
6.0  10 5
____ 31. A cubic meter is about the same as the volume occupied by a ____.
a. kilogram of water
c. washing machine
b. cup of milk
d. basketball arena
____ 32. What is the volume of a salt crystal measuring 2.44  10 2 m by 1.4  10 3 m by 8.4  10 3 m?
a.
2.9  10 7 m 3
c.
2.9  10 5 m 3
b.
2.9  10 6 m 3
d.
2.9  10 4 m 3
____ 33. The density of aluminum is 2.70 g/cm3. What is the mass of a solid piece of aluminum with a volume of 1.50
cm3?
a. 0.556 g
c. 4.05 g
b. 1.80 g
d. 4.20 g
____ 34. How many significant digits are in the value 0.0050340?
a. 3
c. 7
b. 5
d. 8
4
Name: ________________________
ID: A
____ 35. Express the sum of 1111 km and 222 km using the correct number of significant digits.
a. 1300 km
c. 1333 km
b. 1330 km
d. 1333.0 km
____ 36. Which of the following measurements contains two significant figures?
a. 0.004 00 L
c. 0.000 44 L
b. 0.004 04 L
d. 0.004 40 L
____ 37. How is the measurement 0.000 065 cm written in scientific notation?
c. 6.5  10–6 cm
a. 65  10–6 cm
–5
b. 6.5  10 cm
d. 6.5  10–4 cm
____ 38. Which of these statements about units of measurement is not true?
a. A unit compares what is being measured with a previously defined quantity.
b. A unit is usually preceded by a number.
c. Measurements can be compared without knowing their units.
d. The choice of unit depends on the quantity being measured.
____ 39. Which one of the following is not a SI base unit?
a. kilogram
b. Fahrenheit
c. Kelvin
d. meter
e. second
____ 40. The liter is defined as
a. 1000 m3.
b. 1000 cm3.
c.
d.
1000 g3.
1000 c3.
____ 41. In the measurement 0.503 L, which digit is the estimated digit?
a. 5
b. the 0 immediately to the left of the 3
c. 3
d. the 0 to the left of the decimal point
____ 42. How many significant figures would the answer to the following calculation have?
3.475  1.97 + 2.4712 is
a.
b.
2
3
c.
d.
4
5
____ 43. Three samples of 1.12 g, 1.8 g, and 1.562 g are mixed together. The combined mass of the three samples,
expressed to the correct number of significant figures, would be recorded as
a. 4.4 g.
c. 4.482 g.
b. 4.48 g.
d. 4.5 g.
____ 44. What is the volume of 80.0 g of ether if the density of ether is 0.70 g/mL?
a.
5.6  10 1
c.
8.8  10 3
b.
1.1  10 2
d.
8.0  10 1
5
Name: ________________________
____ 45. The measurement 0.020 L is the same as
a. 2.0  10–3 L.
b. 2.0  102 L.
ID: A
c.
d.
2.0  10–2 L.
2.0  10–1 L.
____ 46. The density of pure diamond is 3.5 g/cm 3. What is the volume of a diamond with a mass of 0.25 g?
c. 3.75 cm3
a. 0.071 cm3
3
b. 0.875 cm
d. 14 cm3
____ 47. The quantity of matter per unit volume is
a. mass.
b. weight.
c.
d.
inertia.
density.
____ 48. The relationship between the mass m of a material, its volume V, and its density D is
a. D = mV.
c. D = m/V.
b. D = V/m.
d. D = m + v.
____ 49. The wavelength of light emitted from a green laser pointer is 5.32  102 nm. What is the wavelength in
meters?
a. 5.32  10-9 m
b. 5.32  10-7 m
c. 5.32  10-5 m
d. 5.32  10-3 m
e. 5.32  10-1 m
____ 50. 100 milliliters is equivalent to
a. 1 hectoliter.
b. 1 microliter.
c.
d.
1 centiliter.
1 deciliter.
____ 51. Which pair of quantities determines the density of a material?
a. mass and weight
c. volume and concentration
b. volume and weight
d. volume and mass
____ 52. The number of significant figures in the measured value 0.032 0 g is
a. 2.
c. 4.
b. 3.
d. 5.
____ 53. Which of the following mass units is the largest?
a. 1 cg
c.
b. 1 dg
d.
1 mg
1 ng
____ 54. At 25 C, the density of oxygen in air is 0.275 g/L. What volume is occupied by 25 kg of oxygen at 25 C?
a. 1.1  10-5 L
b. 6.9 L
c. 2.8  102 L
d. 6.9  103 L
e. 9.1  104 L
____ 55. Which value has only 4 significant digits?
a. 6.930
b. 0.0450
c.
d.
6
8450
0.392
Name: ________________________
ID: A
____ 56. The most appropriate SI unit for measuring the length of an automobile is the
a. millimeter.
c. meter.
b. kilometer.
d. liter.
____ 57. Which is the value associated with the prefix nano-?
a. one-millionth
c. one-thousandth
b. one-billionth
d. billion
____ 58. What is the density of an object having a mass of 8.0 g and a volume of 25 cm 3 ?
a.
0.32 g/cm 3
c.
3.1 g/cm 3
b.
2.0 g/cm 3
d.
200 g/cm 3
____ 59. The density of liquid mercury is 13.5 g/cm 3. What mass of mercury will fill a 0.500 L container?
a. 3.70  10-2 g
b. 6.75 g
c. 27.0 g
d. 37.0 g
e. 6.75  103 g
____ 60. A volume of 1 milliliter is equivalent to
a. 1 cubic centimeter.
b. 1 gram.
c.
d.
1 liter.
10–1 cubic decimeters.
____ 61. The result of dividing 10 7 by 10–3 is
a. 10–4.
b. 102.5.
c.
d.
104.
1010.
____ 62. What quantity is represented by the metric system prefix deci-?
a. 1000
c. 0.1
b. 100
d. 0.01
____ 63. At 0 C, a bottle contains 325 mL of water in its liquid state. What is the volume of the water after it freezes
(at 0 C)? The densities of liquid water and ice at 0 C are 1.000 g/mL and 0.917 g/mL, respectively.
a. 27.0 mL
b. 298 mL
c. 325 mL
d. 354 mL
e. 391 mL
____ 64. Which of the following observations is qualitative?
a. A chemical reaction was complete in 2.3 seconds.
b. The solid had a mass of 23.4 grams.
c. The pH of a liquid was 5.
d. Salt crystals formed as the liquid evaporated.
7
Name: ________________________
ID: A
____ 65. What is the correct answer to the following expression: 2.97  10-5 + 6.13  10-3?
a. 6.1  10-3
b. 6.16  10-3
c. 6.160  10-3
d. 6.1597  10-3
e. 6.15970  10-5
____ 66. What is the result of multiplying 2.5  10 10 by 3.5  10 7 ?
a.
8.75  10 3
c.
8.75  10 3
b.
8.75  10 17
d.
8.75  10 17
____ 67. What is the correct answer to the following expression: (18 + 95)  0.077351? Carry out the addition
operation first.
a. 8.7
b. 8.74
c. 8.741
d. 8.7407
e. 8.74066
____ 68. Which of the following measurements is expressed to three significant figures?
a.
b.
0.007 m
7077 mg
c.
d.
7.30  10 7 km
0.070 mm
____ 69. Which is the sum of these values, to the appropriate number of significant digits?
17.358 + 3.502 + 20.14 =
a. 41
c. 41.000
b. 41.00
d. 41.0
8
ID: A
Measurement Unit Review
Answer Section
MULTIPLE CHOICE
1. ANS:
OBJ:
2. ANS:
OBJ:
3. ANS:
4. ANS:
OBJ:
5. ANS:
6. ANS:
7. ANS:
OBJ:
8. ANS:
9. ANS:
OBJ:
10. ANS:
OBJ:
11. ANS:
OBJ:
12. ANS:
NAT:
13. ANS:
OBJ:
14. ANS:
15. ANS:
NAT:
16. ANS:
OBJ:
17. ANS:
OBJ:
18. ANS:
OBJ:
19. ANS:
OBJ:
A
PTS:
3.1.3
B
PTS:
2
C
PTS:
B
PTS:
3.1.3
A
PTS:
C
PTS:
D
PTS:
3.2.1
D
PTS:
D
PTS:
3
B
PTS:
4
A
PTS:
2
A
PTS:
UCP.2 | UCP.3
D
PTS:
3.1.3
E
PTS:
B
PTS:
UCP.3 | A.1 STA:
B
PTS:
3
B
PTS:
3.1.3
D
PTS:
4
A
PTS:
3
1
DIF: L2
REF: p. 66 | p. 68
1
DIF: II
REF: 1
1
1
OBJ: 1.4 Physical Properties
DIF: L1
REF: p. 68 | p. 71
1
1
1
OBJ: 1.4 Physical Properties
OBJ: 1.8 Mathematics of Chemistry
DIF: L1
REF: p. 73
1
1
OBJ: 1.6 Units of Measurement
DIF: III
REF: 3
1
DIF: III
REF: 3
1
DIF: I
REF: 2
1
DIF: Bloom's Level 3
STA: SC-HS-4.6.7
DIF: L1
REF: p. 66
1
1
OBJ: 1.8 Mathematics of Chemistry
1
DIF: Bloom's Level 3
SC-HS-4.6.7
1
DIF: III
REF: 3
1
DIF: L2
REF: p. 66 | p. 68
1
DIF: III
REF: 3
1
DIF: III
REF: 3
1
ID: A
20. ANS: A
Density 
Mass
Volume
Feedback
A
B
C
D
Correct!
Calculate the mass of the liquid.
Subtract the mass of the bottle from the total mass of the bottle and the liquid.
Density is the mass divided by volume.
PTS:
OBJ:
TOP:
MSC:
21. ANS:
OBJ:
22. ANS:
1
DIF: 2
REF: Page 28
2.1.3 Compare the derived units of volume and density.
STA: SC-HS-4.6.7
Compare the derived units of volume and density.
KEY: Mass | Volume | Density
3
A
PTS: 1
DIF: II
REF: 3
2
C
7 days
24 h 60 min
1 week 


=10 080min
Solution:
1h
1 week 1 day
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
PTS:
ANS:
OBJ:
ANS:
ANS:
OBJ:
ANS:
NAT:
ANS:
OBJ:
ANS:
OBJ:
ANS:
OBJ:
ANS:
OBJ:
ANS:
OBJ:
ANS:
OBJ:
ANS:
1
DIF:
C
PTS:
1
D
PTS:
B
PTS:
2
D
PTS:
UCP.3 | A.1 | A.2
D
PTS:
3.3.2
B
PTS:
3.3.2
A
PTS:
3.1.3
A
PTS:
3.1.1
C
PTS:
3.3.3
A
PTS:
3.1.3
C
m
D
Solution:
V
II
1
REF: 2
DIF: I
OBJ: 5
REF: 1
1
1
OBJ: 1.4 Physical Properties
DIF: II
REF: 3
1
1
DIF: Bloom's Level 3
STA: SC-HS-4.6.7
DIF: L2
REF: p. 84
1
DIF: L1
REF: p. 84
1
DIF: L1
REF: p. 66
1
DIF: L2
REF: p. 63 | p. 71
1
DIF: L2
REF: p. 84
1
DIF: L3
REF: p. 68
m  DV  2.70g/cm3  1.50cm3  4.05g
PTS: 1
DIF: III
REF: 2
2
OBJ: 4
ID: A
34. ANS:
NAT:
35. ANS:
OBJ:
36. ANS:
OBJ:
37. ANS:
OBJ:
38. ANS:
OBJ:
39. ANS:
40. ANS:
OBJ:
41. ANS:
OBJ:
42. ANS:
OBJ:
43. ANS:
OBJ:
44. ANS:
OBJ:
45. ANS:
OBJ:
46. ANS:
B
UCP.2
C
3.1.3
C
3.1.2
B
4
C
1
B
B
2
C
3.1.3
B
3
D
3
B
3.4.1
C
4
A
Solution:
47.
48.
49.
50.
51.
52.
53.
54.
55.
PTS:
ANS:
OBJ:
ANS:
OBJ:
ANS:
ANS:
OBJ:
ANS:
OBJ:
ANS:
OBJ:
ANS:
OBJ:
ANS:
ANS:
NAT:
1
D
2
C
4
B
D
5
D
4
B
2
B
3.2.1
E
A
UCP.2
PTS: 1
DIF: Bloom's Level 3
STA: SC-HS-4.6.7
PTS: 1
DIF: L1
REF: p. 68
PTS: 1
DIF: L1
REF: p. 66
PTS: 1
DIF: III
REF: 3
PTS: 1
DIF: I
REF: 2
PTS: 1
PTS: 1
OBJ: 1.6 Units of Measurement
DIF: I
REF: 2
PTS: 1
DIF: L1
REF: p. 66
PTS: 1
DIF: III
REF: 3
PTS: 1
DIF: III
REF: 3
PTS: 1
DIF: L2
REF: p. 91
PTS: 1
DIF: III
REF: 3
m
V
0.25 g
m
V

 0.071 cm3
D 3.5 g/cm3
D
DIF: III
PTS: 1
REF: 2
DIF: I
OBJ: 4
REF: 2
PTS: 1
DIF: I
REF: 2
PTS: 1
PTS: 1
OBJ: 1.8 Mathematics of Chemistry
DIF: II
REF: 2
PTS: 1
DIF: I
REF: 2
PTS: 1
DIF: II
REF: 3
PTS: 1
DIF: L2
REF: p. 74 | p. 76
PTS: 1
OBJ: 1.8 Mathematics of Chemistry
PTS: 1
DIF: Bloom's Level 4
STA: SC-HS-4.6.7
3
ID: A
56. ANS:
OBJ:
57. ANS:
NAT:
58. ANS:
OBJ:
59. ANS:
60. ANS:
OBJ:
61. ANS:
OBJ:
62. ANS:
OBJ:
63. ANS:
64. ANS:
OBJ:
65. ANS:
66. ANS:
OBJ:
67. ANS:
68. ANS:
OBJ:
69. ANS:
NAT:
C
PTS:
2
B
PTS:
UCP.2
STA:
A
PTS:
3.4.1
E
PTS:
A
PTS:
2
D
PTS:
4
C
PTS:
3.2.1
D
PTS:
D
PTS:
2
B
PTS:
C
PTS:
3.1.1
B
PTS:
C
PTS:
3.1.2
B
PTS:
UCP.2 | A.1 | A.2
1
DIF: II
REF: 2
1
DIF: Bloom's Level 1
SC-HS-4.6.7
1
DIF: L2
REF: p. 90 | p. 91
1
1
OBJ: 1.4 Physical Properties
DIF: I
REF: 2
1
DIF: III
REF: 3
1
DIF: L1
REF: p. 74
1
1
OBJ: 1.4 Physical Properties
DIF: II
REF: 1
1
1
OBJ: 1.8 Mathematics of Chemistry
DIF: L2
REF: p. 63 | p. 71
1
1
OBJ: 1.8 Mathematics of Chemistry
DIF: L2
REF: p. 66
1
DIF: Bloom's Level 3
STA: SC-HS-4.6.7
4