Matching



Match each item with the correct statement below. a.  absolute
zero  e.  mass  b.  Kelvin temperature scale  f.  significant figure  c.  Celsius
temperature scale  g.  precision  d.  weight  h.  accuracy     


1.

closeness to true value


2.

narrowness of range of measurements


3.

known
or estimated in a measurement


4.

the
quantity of matter an object contains


5.

the
lowest point on the Kelvin scale


6.

the
SI scale for temperature


7.

the
force of gravity on an object


8.

the
nonSI scale for temperature

Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.


9.

The
diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific
notation? a.  1.54 10^{}
m  c.  1.54 10^{}
m  b.  1.54 10^{}
m  d.  1.54 10^{}
m     


10.

The
expression of 5008 km in scientific notation is ____. a.  5.008 10^{}
km  c.  5.008 10^{}
km  b.  50.08 10^{}
km  d.  5.008 10^{}
km     


11.

What
is the result of multiplying 2.5 10^{} by 3.5 10^{}? a.  8.75 10^{}  c.  8.75 10^{}  b.  8.75 10^{}  d.  8.75 10^{}     


12.

What
is the result of adding 2.5 10^{} and 3.5 10^{}? a.  2.9 10^{}  c.  2.9 10^{}  b.  6.0 10^{}  d.  6.0 10^{}     


13.

The
closeness of a measurement to its true value is a measure of its ____. a.  precision  c.  reproducibility  b.  accuracy  d.  usefulness     


14.

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     


15.

When
a test instrument is calibrated, does its accuracy, precision, or reliability
improve? a.  precision  c.  reliability  b.  accuracy  d.  all of the above     


16.

Which
of the following measurements (of different masses) is the most accurate? a.  3.1000
g  c.  3.122 22
g  b.  3.100 00
g  d.  3.000 000
g     


17.

Which
group of measurements is the most precise? (Each group of measurements is for a different
object.) a.  2 g, 3 g, 4
g  c.  2 g, 2.5 g, 3
g  b.  2.0 g, 3.0 g,
4.0 g  d.  1 g, 3 g, 5
g     


18.

Three
different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading
of 7.32 g for the mass of the standard. These results imply that the balance that was used is
____. a.  accurate  c.  accurate and
precise  b.  precise  d.  neither accurate nor precise     


19.

Which
of the following measurements is expressed to three significant figures? a.  0.007
m  c.  7.30 10^{}
km  b.  7077
mg  d.  0.070
mm     


20.

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   


21.

How
many significant figures are in the measurement 0.003 4 kg? a.  two  c.  five  b.  four  d.  This cannot be determined.     


22.

How
many significant figures are in the measurement 40,500 mg?


23.

How
many significant figures are in the measurement 811.40 grams?


24.

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     


25.

Express the sum of 7.68 m and 5.0 m using the correct number of significant
digits. a.  12.68
m  c.  13
m  b.  12.7
m  d.  10
m     


26.

Express the product of 2.2 mm and 5.00 mm using the correct number of significant
digits. a.  10 mm^{}  c.  11.0 mm^{}  b.  11 mm^{}  d.  11.00
mm^{}     


27.

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     


28.

What
is the measurement 1042 L rounded off to two significant digits? a.  1.0 10^{}
L  c.  1050
L  b.  1040
L  d.  1.1 10^{}
L     


29.

Express the product of 4.0 10^{} m and 8.1 10^{ }m using the correct number of significant
digits. a.  3 10^{}  c.  3.2 10^{}  b.  3.0 10^{}  d.  3.24 10^{}     


30.

When
multiplying and dividing measured quantities, the number of significant figures in the result should
be equal to the number of significant figures in ____. a.  all of the
measurements  b.  the least and most precise
measurements  c.  the most precise measurement  d.  the least
precise measurement   


31.

What
is the volume of a salt crystal measuring 2.44 10^{} m by 1.4 10^{} m by 8.4 10^{} m? a.  2.9 10^{}
m^{}  c.  2.9 10^{} m^{}  b.  2.9 10^{} m^{}  d.  2.9 10^{}
m^{}     


32.

What
quantity is represented by the metric system prefix deci?


33.

What
is the metric system prefix for the quantity 0.000 001? a.  centi  c.  kilo  b.  deci  d.  micro     


34.

The
chief advantage of the metric system over other systems of measurement is that it
____. a.  has more
units  c.  is in
French  b.  is in multiples of 10  d.  is derived from nature itself     


35.

Which
of the following units is NOT an official SI unit? a.  kilogram  c.  mole  b.  ampere  d.  liter     


36.

Which
of the following volumes is the smallest? a.  one microliter  c.  one milliliter  b.  one
liter  d.  one
deciliter     


37.

What
is the SI unit of mass? a.  liter  c.  candela  b.  joule  d.  kilogram     


38.

What
is the temperature of absolute zero measured in C? a.  –373C  c.  –173C  b.  –273C  d.  –73C     


39.

Which
temperature scale has no negative temperatures? a.  Celsius  c.  Joule  b.  Fahrenheit  d.  Kelvin     


40.

What
is the boiling point of water in kelvins? a.  0 K  c.  273 K  b.  100
K  d.  373
K     


41.

Which
of the following mass units is the largest?


42.

The
weight of an object ____. a.  is the same as its mass  c.  is not affected by gravity  b.  depends on its
location  d.  is always the
same     


43.

What
is the temperature –34C expressed
in kelvins? a.  139
K  c.  239
K  b.  207
K  d.  339
K     


44.

If
the temperature changes by 100 K, by how much does it change in C?


45.

Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees
Celsius?



Commonly Used
Metric Prefixes  Prefix  Meaning  Factor  mega
(M)  1 million times larger than the unit it
precedes  10  kilo
(k)  1000 times larger than the unit it
precedes  10  deci
(d)  10 times smaller than the unit it
precedes  10  centi
(c)  100 times smaller than the unit it
precedes  10  milli
(m)  1000 times smaller than the unit it
precedes  10  micro ()  1 million times
smaller than the unit it precedes  10  nano (n)  1000 million times smaller than the unit it
precedes  10  pico
(p)  1 trillion times smaller than the unit it
precedes  10    


46.

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     


47.

What
is the quantity 7896 millimeters expressed in meters? Use the table above to help
you. a.  7.896
m  c.  789.6
m  b.  78.96
m  d.  789,600
m     


48.

What
is the quantity 987 milligrams expressed in grams? Use the table above to help you. a.  0.000 987
g  c.  9.87
g  b.  0.987
g  d.  98,700
g     


49.

Which
of the following equalities is NOT correct? Use the table above to help you. a.  100 cg = 1
g  c.  1 cm^{} = 1 mL  b.  1000 mm = 1
m  d.  10 kg = 1
g     


50.

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     


51.

The
quantity 44 liters expressed in cubic meters is ____. a.  0.000 044
m^{}  c.  0.44 m^{}  b.  440 000 m^{}  d.  0.044 m^{}     


52.

Density is found by dividing ____. a.  mass by volume  c.  mass by area  b.  volume by
mass  d.  area by
mass     


53.

What
is the density of an object having a mass of 8.0 g and a volume of 25 cm^{}? a.  0.32
g/cm^{}  c.  3.1 g/cm^{}  b.  2.0 g/cm^{}  d.  200
g/cm^{}     


54.

What
is the volume of 80.0 g of ether if the density of ether is 0.70 g/mL? a.  5.6 10^{}  c.  8.8 10^{}  b.  1.1 10^{}  d.  8.0 10^{}     


55.

What
is the volume of 45.6 g of silver if the density of silver is 10.5 g/mL? a.  0.23
mL  c.  479
mL  b.  4.34
mL  d.  none of the
above     


56.

If a
liter of water is heated from 20C to 50C, what happens to its volume? a.  The volume
decreases.  b.  The volume increases.  c.  The volume first
increases, then decreases.  d.  The volume first decreases, then
increases.   


57.

If
the temperature of a piece of steel decreases, what happens to its density? a.  The density
decreases.  b.  The density increases.  c.  The density does
not change.  d.  The density first increases, then
decreases.   


58.

As
the density of a substance increases, the volume of a given mass of that substance
____. a.  increases  c.  decreases  b.  is not affected  d.  fluctuates     
