Chapter: Chapter 1
Learning Objectives:
LO 1.1.0 Solve problems related to measuring things, including length.
LO 1.1.1 Identify the base quantities in the SI system.
LO 1.1.2 Name the most frequently used prefixes for SI units.
LO 1.1.3 Change units (here for length, area, and volume) by using chain-link
conversions.
LO 1.1.4 Explain that the meter is defined in terms of the speed of light in a vacuum.
LO 1.2.0 Solve problems related to time.
LO 1.2.1 Change units for time by using chain-link conversions.
LO 1.2.2 Use various measures of time, such as for motion or as determined on different
clocks.
LO 1.3.0 Solve problems related to mass.
LO 1.3.1 Change units for mass by using chain-link conversions.
LO 1.3.2 Relate density to mass and volume when the mass is uniformly distributed
Multiple Choice
1. (5.0 104) (3.0 106) =
A) 1.5 109
B) 1.5 1010
C) 1.5 1011
D) 1.5 1012
E) 1.5 1013
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
2. (5.0 104) (3.0 10–6) =
A) 1.5 10–3
B) 1.5 10–1
C) 1.5 101
D) 1.5 103
E) 1.5 105
Ans: B
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
,3. 5.0 105 + 3.0 106 =
A) 8.0 105
B) 8.0 106
C) 5.3 105
D) 3.5 105
E) 3.5 106
Ans: E
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
4. (7.0 106)/(2.0 10–6) =
A) 3.5 10–12
B) 3.5 10–6
C) 3.5
D) 3.5 106
E) 3.5 1012
Ans: E
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
5. The SI base units have the dimensions of:
A) mass, weight, time
B) length, density, time
C) mass, length, time
D) weight, length, time
E) mass, length, speed
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.1
6. The SI base unit for mass is:
A) gram
B) pound
C) kilogram
D) ounce
E) kilopound
,Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.1
7. A nanosecond is:
A) 109 s
B) 10–9 s
C) 10-6 s
D) 10-15 s
E) 10–12 s
Ans: B
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.2
8. A gram is:
A) 10–6 kg
B) 10–3 kg
C) 1 kg
D) 103 kg
E) 106 kg
Ans: B
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.2
9. 1 mi is equivalent to 1609 m so 55 mph is:
A) 15 m/s
B) 25 m/s
C) 81 m/s
D) 123 m/s
E) 1500 m/s
Ans: B
Difficulty: Medium
Section: 1-2
Learning Objective 1.2.1
10. In 1866, the U. S. Congress defined the U. S. yard as exactly 3600/3937 international
meter. This was done primarily because:
A) length can be measured more accurately in meters than in yards
B) the meter is more stable than the yard
, C) this definition relates the common U. S. length units to a more widely used system
D) there are more wavelengths in a yard than in a meter
E) the members of this Congress were exceptionally intelligent
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
11. Which of the following is closest to a yard in length?
A) 0.01 m
B) 0.1 m
C) 1 m
D) 100 m
E) 1000 m
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
12. There is no SI base unit for area because:
A) an area has no thickness; hence no physical standard can be built
B) we live in a three (not a two) dimensional world
C) it is impossible to express square feet in terms of meters
D) area can be expressed in terms of square meters
E) area is not an important physical quantity
Ans: D
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
13. 1 m is equivalent to 3.281 ft. A cube with an edge of 1.5 ft has a volume of:
A) 1.2 102 m3
B) 9.6 10–2 m3
C) 10.5 m3
D) 9.5 10–2 m3
E) 0.21 m3
Ans: B
Difficulty: Medium
Section: 1-1
Learning Objectives:
LO 1.1.0 Solve problems related to measuring things, including length.
LO 1.1.1 Identify the base quantities in the SI system.
LO 1.1.2 Name the most frequently used prefixes for SI units.
LO 1.1.3 Change units (here for length, area, and volume) by using chain-link
conversions.
LO 1.1.4 Explain that the meter is defined in terms of the speed of light in a vacuum.
LO 1.2.0 Solve problems related to time.
LO 1.2.1 Change units for time by using chain-link conversions.
LO 1.2.2 Use various measures of time, such as for motion or as determined on different
clocks.
LO 1.3.0 Solve problems related to mass.
LO 1.3.1 Change units for mass by using chain-link conversions.
LO 1.3.2 Relate density to mass and volume when the mass is uniformly distributed
Multiple Choice
1. (5.0 104) (3.0 106) =
A) 1.5 109
B) 1.5 1010
C) 1.5 1011
D) 1.5 1012
E) 1.5 1013
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
2. (5.0 104) (3.0 10–6) =
A) 1.5 10–3
B) 1.5 10–1
C) 1.5 101
D) 1.5 103
E) 1.5 105
Ans: B
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
,3. 5.0 105 + 3.0 106 =
A) 8.0 105
B) 8.0 106
C) 5.3 105
D) 3.5 105
E) 3.5 106
Ans: E
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
4. (7.0 106)/(2.0 10–6) =
A) 3.5 10–12
B) 3.5 10–6
C) 3.5
D) 3.5 106
E) 3.5 1012
Ans: E
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
5. The SI base units have the dimensions of:
A) mass, weight, time
B) length, density, time
C) mass, length, time
D) weight, length, time
E) mass, length, speed
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.1
6. The SI base unit for mass is:
A) gram
B) pound
C) kilogram
D) ounce
E) kilopound
,Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.1
7. A nanosecond is:
A) 109 s
B) 10–9 s
C) 10-6 s
D) 10-15 s
E) 10–12 s
Ans: B
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.2
8. A gram is:
A) 10–6 kg
B) 10–3 kg
C) 1 kg
D) 103 kg
E) 106 kg
Ans: B
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.2
9. 1 mi is equivalent to 1609 m so 55 mph is:
A) 15 m/s
B) 25 m/s
C) 81 m/s
D) 123 m/s
E) 1500 m/s
Ans: B
Difficulty: Medium
Section: 1-2
Learning Objective 1.2.1
10. In 1866, the U. S. Congress defined the U. S. yard as exactly 3600/3937 international
meter. This was done primarily because:
A) length can be measured more accurately in meters than in yards
B) the meter is more stable than the yard
, C) this definition relates the common U. S. length units to a more widely used system
D) there are more wavelengths in a yard than in a meter
E) the members of this Congress were exceptionally intelligent
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
11. Which of the following is closest to a yard in length?
A) 0.01 m
B) 0.1 m
C) 1 m
D) 100 m
E) 1000 m
Ans: C
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
12. There is no SI base unit for area because:
A) an area has no thickness; hence no physical standard can be built
B) we live in a three (not a two) dimensional world
C) it is impossible to express square feet in terms of meters
D) area can be expressed in terms of square meters
E) area is not an important physical quantity
Ans: D
Difficulty: Easy
Section: 1-1
Learning Objective 1.1.0
13. 1 m is equivalent to 3.281 ft. A cube with an edge of 1.5 ft has a volume of:
A) 1.2 102 m3
B) 9.6 10–2 m3
C) 10.5 m3
D) 9.5 10–2 m3
E) 0.21 m3
Ans: B
Difficulty: Medium
Section: 1-1
