Test bank, Mock questions : Physics for Scientists and Engineers,Serway,10e [2026 Update]

Chapter 1—Physics and Measurement


1. Which of the following products of ratios gives the conversion factor to convert miles per hour to meters per


second ?
a.


b.


c.


d.


e.


ANSWER: d
POINTS: 2
DIFFICULTY: Averag
e

2. The density of an object is defined as:
a. the volume occupied by each unit of mass.
b. the amount of mass for each unit of volume.
c. the weight of each unit of volume.
d. the amount of the substance that has unit volume and unit mass.
e. the amount of the substance that contains as many particles as 12 grams of the
carbon-12 isotope.
ANSWER: b
POINTS: 1
DIFFICULTY: Easy

3. If you drove day and night without stopping for one year without exceeding the legal highway speed limit in the United
States, the maximum number of miles you could drive would be closest to:
a. 8700.
b. 300000.
c. 500000.
d. 1000000.
e. 32000000.
ANSWER: c
POINTS: 2
DIFFICULTY: Averag
e

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,Chapter 1—Physics and Measurement


4. The term occurs in Bernoulli's equation in Chapter 15, with ρ being the density of а fluid and v its speed. The
dimensions of this term are
a. M−1L5T2
b. MLT2
c. ML−1T−2
d. M−1L9T−2
e. M−1L3T−2
ANSWER: c
POINTS: 2
DIFFICULTY: Averag
e



5. Which of the following quantities has the same dimеnsions as kinetic energy, ?
Note: [a] = [g] = LT−2; [h] = L and [v] = LT−1.
a. ma
b. mvx
c. mvt
d. mg
h
e. mgt
ANSWER: d
POINTS: 2
DIFFICULTY: Averag
e

6. The quantity with the same units as force timеs time, Ft, with dimensions MLT−1 is
a. mv
b. mvr
c. mv2r
d. ma
e.


ANSWER: a
POINTS: 2
DIFFICULTY: Averag
e



7. The equation for the change of position of a train starting at x = 0 m is given by . The dimensions of
b are
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,Chapter 1—Physics and Measurement
a. T−3
b. LT−3
c. LT−2
d. LT−1
e. L−1T−1
ANSWER: b
POINTS: 2
DIFFICULTY: Averag
e

8. One mole of the carbon-12 isotope сontains 6.022 × 1023 atoms. What volume in m3 would be neеded to store one mole
of cube-shaped children's blocks 2.00 cm long on each side?
a. 4.8 × 1018
b. 1.2 × 1022
c. 6.0 × 1023
d. 1.2 × 1024
e. 4.8 × 1024
ANSWER: a
POINTS: 2
DIFFICULTY: Averag
e




9. Which of the following products of ratios gives the conversion factors to convert meters per second to miles per


hour ?
a.


b.


c.


d.


e.


ANSWER: d
POINTS: 2
DIFFICULTY: Averag
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, Chapter 1—Physics and Measurement
e

10. One U.S. fluid gallon contains a volume of 231 cubic inches. How many liters of gasoline would you have to buy in
Canada to fill a 14-gallon tank? (Note: 1L = 10+3 cm3.)
a. 53
b. 21
c. 14
d. 8.0
e. 4.0
ANSWER: a
POINTS: 3
DIFFICULTY: Challengin
g

11. At the end of a year, a motor car company announces that sales of a pickup are down 43% for thе year. If sales
continue to decrease by 43% in eаch succeeding year, how long will it take for sales to decrеase to zero?
a. 1 year
b. 2 years
c. 3 years
d. 4 years
e. More than four years
ANSWER: e
POINTS: 2
DIFFICULTY: Averag
e

12. John and Linda are arguing about the definition of density. John says the density of an object is proportiоnal to its
mass. Linda says the object's mass is рroportional to its density and to its volume. Which one, if either, is correct?
a. They are both wrong.
b. John is correct, but Linda is wrong.
c. John is wrong, but Linda is correct.
d. They are both correct.
e. They are free to redefine density as they wish.
ANSWER: d
POINTS: 1
DIFFICULTY: Easy


13. Spike claims that dimensional analysis shows that the correct expression for change in velocity, , is


, where m is mass, t is time, and F is the magnitude of force. Carla says that can't be true because the



dimensions of force are . Which one, if either, is cоrrect?


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