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NAME ______________________________________ DATE _______________ CLASS ____________________
Section
HOLT PHYSICS
1-1 Concept Review
What is Physics?
1. Which areas of physics deal with the following?
a. how fast things move
b. how the shape of a cave affects an echo
c. which sunglasses are best for cutting the glare on a ski slope
d. how the cooling system in a refrigerator works
e. what lightning is
f. how energy is produced by the sun
2. Laws governing speed limits on highways are determined by a majority
vote by citizens of a state or their representatives. Compare this democratic procedure to the way scientific laws are established with regard to
the following questions. Explain your reasoning.
HRW material copyrighted under notice appearing earlier in this book.
a. Can scientific laws be changed by a vote?
b. Can the speed of light be legislated?
c. Can scientists from other countries change what physicists in the United States think?
Chapter 1
1
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NAME ______________________________________ DATE _______________ CLASS ____________________
HOLT PHYSICS
Section
1-2 Math Skills
Measurements in Experiments
Power
Prefix
10–18
atto-
10
–15
10
–12
10
–9
10–6
10
–3
10
–2
Abbreviation
a
femtopico-
f
p
Power
Prefix
10–1
deci-
d
10
1
deka-
da
10
3
kilo-
k
6
mega-
M
nano-
n
10
micro-
m
109
millicenti-
m
c
Abbreviation
giga-
G
10
12
tera-
T
10
15
peta-
P
10
18
exa-
E
1. How many picoseconds are there in 1 Ms?
2. How many micrograms make 1 kg?
3. How many nanometers are there in 1 cm?
4. Rewrite the following quantities in scientific notation without prefixes.
b. 0.0009231 milliwatts
c. 53657 nanoseconds
d. 5.32 milligrams
e. 88900 megahertz
f. 0.00000083 centimeters
5. Rewrite the following quantities in units with SI prefixes.
a. 36582472 g
b. 0.000000452 m
c. 53236 V
d. 4.62 × 10–3 s
6. Express the measurement 4.29478416 kg with 8, 6, 4, and 2 significant figures.
2
Holt Physics Section Review Worksheets
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a. 3582 gigabytes
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NAME ______________________________________ DATE _______________ CLASS ____________________
Section
HOLT PHYSICS
1-3 Math Skills
The Language of Physics
1. Calculate the following products and quotients without using a calculator.
a. (3.0 × 105) × (2.0 × 103)
b. (3.0 × 105) ÷ (2.0 × 103)
c. (3.0 × 102) ÷ (2.0 × 105)
d. (3.0 × 10–2) × (2.0 × 105)
e. (3.0 × 10–2) ÷ (2.0 × 10–5)
f. (3.0 × 10–2) × (2.0 × 10–5)
2. Round off the following numbers to one figure.
a. 3.7 × 105
b. 6.1 × 105
c. 8.2 × 10–9
HRW material copyrighted under notice appearing earlier in this book.
d. 0.000067
e. 7439262
f. 0.0006739
3. Find the order of magnitude of the following results without using a calculator.
a. 97 × 192
b. 96.8639 ÷ 883.3525
4. a. Estimate the width and height in centimeters of a half-gallon milk
container. Show your assumptions and your work.
b. Use your numbers to obtain a rough estimate of the volume of milk
in a half-gallon container.
c. The volume of a half-gallon is about 1890 cm3. How close was your estimate?
Chapter 1
3
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NAME ______________________________________ DATE _______________ CLASS ____________________
HOLT PHYSICS
Chapter
1 Mixed Review
The Science of Physics
Power
Prefix
10–18
atto-
10
–15
10
–12
10
–9
10–6
10
–3
10
–2
Abbreviation
femtopico-
a
f
p
Power
Prefix
10–1
deci-
d
10
1
deka-
da
10
3
kilo-
k
6
mega-
M
nano-
n
10
micro-
m
109
millicenti-
m
c
Abbreviation
giga-
G
10
12
tera-
T
10
15
peta-
P
10
18
exa-
E
1. Convert the following measurements to the units specified.
a. 2.5 days to seconds
b. 35 km to millimeters
c. 43 cm to kilometers
e. 671 kg to micrograms
f. 8.76 × 107 mW to gigawatts
g. 1.753 × 10–13 s to picoseconds
2. According to the rules given in Chapter 1 of your textbook, how many
significant figures are there in the following measurements?
a. 0.0845 kg
b. 37.00 h
c. 8 630 000.000 mi
d. 0.000 000 0217 g
e. 750 in.
f. 0.5003 s
4
Holt Physics Section Review Worksheets
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d. 22 mg to kilograms
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NAME ______________________________________ DATE _______________ CLASS ____________________
Chapter
HOLT PHYSICS
1 Mixed Review
continued
3. Without calculating the result, find the number of significant figures in
the following products and quotients.
a. 0.005032 × 4.0009
b. 0.0080750 ÷ 10.037
c. (3.52 × 10–11) × (7.823 × 1011)
4. Calculate a + b, a − b, a × b, and a ÷ b with the correct number of
significant figures using the following numbers.
a. a = 0.005 078; b = 1.0003
a+b=
a−b=
a×b=
a÷b=
b. a = 4.231 19 × 107; b = 3.654 × 106
a+b=
a−b=
a×b=
a÷b=
answer with the correct number of significant figures.
6. The table below contains measurements of the
temperature and volume of an air balloon as it
heats up.
In the grid at right, sketch a graph that best
describes these data.
Temperature
(°C)
Volume
(m3)
0.0800
0.0750
Volume (m3)
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5. Calculate the area of a carpet 6.35 m long and 2.50 m wide. Express your
0.0700
0.0650
2
0.0502
27
0.0553
52
0.0598
0.0550
77
0.0646
0.0500
102
0.0704
127
0.0748
152
0.0796
0.0600
0
25
50
75
100 125 150 175
Temperature (°C)
Chapter 1
5