1
Chapter 1
Systems of Measurement
Conceptual Problems
*1
•
Determine the Concept
The fundamental physical quantities in the SI system include
mass, length, and time. Force, being the product of mass and acceleration, is not a
fundamental quantity.
correct.
is
)
(
c
2
•
Picture the Problem
We can express and simplify the ratio of m/s to m/s
2
to determine
the final units.
Express and simplify the ratio of
m/s to m/s
2
:
s
s
m
s
m
s
m
s
m
2
2
=
⋅
⋅
=
and
correct.
is
)
(
d
3
•
Determine the Concept
Consulting Table 1-1 we note that the prefix giga
means 10
9
.
correct.
is
)
(
c
4
•
Determine the Concept
Consulting Table 1-1 we note that the prefix mega
means 10
6
.
correct.
is
)
(
d
*5
•
Determine the Concept
Consulting Table 1-1 we note that the prefix pico
means 10
−
12
.
correct.
is
)
(
a
6
•
Determine the Concept
Counting from left to right and ignoring zeros to the left
of the first nonzero digit, the last significant figure is the first digit that is in doubt. Applyin
criterion, the three zeros after the decimal point are not significant
figures, but the last zero is significant. Hence, there are four significant figures in
this number.
correct.
is
)
(
c

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