Measurement Examples And Worksheet - A-64 Appendix 5 Page 19

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A-81
V.2 Metric Units of Measurement
1 m
every 100 centimeters and 1 kilometer for every 1,000 meters, we multiply by
100 cm
1 km
and
.
1,000 m
3.2 cm
1 m
1 km
Remove the common units of centimeters
3.2 cm
and meters. The units of km remain.
1
100 cm
1,000 m
3.2
km
Multiply the fractions.
100 1,000
Divide 3.2 by 1,000 and 100 by moving
0.000032 km
the decimal point 5 places to the left.
Define metric units of mass.
5
The mass of an object is a measure of the amount of material in the object. When an
object is moved about in space, its mass does not change. One basic unit of mass in the
metric system is the gram (g). A gram is defined to be the mass of water contained in
a cube having sides 1 centimeter long. (See the figure below.)
1 cubic
centimeter
of water
1g
Other units of mass are created by adding prefixes to the front of the basic unit,
gram.
Metric Units of Mass
Prefix
kilo-
hecto-
deka-
deci-
centi-
milli-
gram
gram
gram
gram
gram
gram
gram
1
1
1
Meaning
1,000
100
10
1
or 0.1
or 0.01
or 0.001
10
100
1,000
grams
grams
grams
gram
of a gram
of a gram
of a gram
Abbreviation
kg
hg
dag
g
dg
cg
mg
The most often used metric units of mass are kilograms, grams, and milligrams.
Some examples are shown below.
An average bowling ball weighs
A raisin weighs
A certain vitamin tablet contains
about 6 kilograms.
about 1 gram.
450 milligrams of calcium.

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