X Unit 1 & 2
Measurement
Homework & Handouts
Name: _____________________________________ Period:________
Homework #1: Taking Measurements & Determining Increments
Determine the increment of the measuring device as well as the length or volume of each example (the
black line above the rulers on the right or the meniscus in the graduated cylinders on the left).
1. Increment : __________________ _
Measurement: _________________
5. Increment : __________________
Measurement: ________________
2. Increment : ___________________
Measurement: _________________
6. Increment : __________________
Measurement: ________________
3. Increment : __________________ __
Measurement: __________________
4. Increment : __________________ __
Measurement: __________________
7. Increment : __________________
Measurement: ________________
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Homework #2
SIGNIFICANT FIGURES
& ROUNDING
Directions: Indicate the number of significant figures then round to the number of sig. figs. indicated.
For example:
1.234
has ___4__ significant figures and, rounded to
2
significant figures, is __1.2____
1. 0.6034
has ______ significant figures and, rounded to
2
significant figures, is ________
2. 12,700
has ______ significant figures and, rounded to
2
significant figures, is ________
3. 12,700.00
has ______ significant figures and, rounded to
1
significant figures, is ________
4. 0.000983
has ______ significant figures and, rounded to
2
significant figures, is ________
5. 123342.9
has ______ significant figures and, rounded to
5
significant figures, is ________
6. 6.023 x 1023 has ______ significant figures and, rounded to
2
significant figures, is ________
7. .005600
has ______ significant figures and, rounded to
1
significant figures, is ________
8. 10000.5006
has ______ significant figures and, rounded to
5
significant figures, is ________
9. 2.0 x 10-3
has ______ significant figures and, rounded to
1
significant figures, is ________
10. 3.456110
has ______ significant figures and, rounded to
3
significant figures, is ________
Directions: Given the answer, write the answer with the appropriate number of significant figures.
Example:
6.00 x 3.00
= 18
The answer should be
______18.0_____
1. 23 + 46
= 69
The answer should be
_______________
2. 23.0 + 46.0
= 69
The answer should be
_______________
3. 56 – 35
= 21
The answer should be
_______________
4. 56.00 – 35.0
= 21
The answer should be
_______________
5. .024 x .063
= 1.512 x 10-3
The answer should be
_______________
6. 3.24 x 5.63
= 18.2412
The answer should be
_______________
7
654  32
= 20.4375
The answer should be
_______________
8
(2.355 + 2.645) x 10.00 = 50
The answer should be
_______________
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Homework #3 (pgs. 5-9)
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Homework #4: Metric Conversions
kilo
hecto
Deka
k
103
h
102
D (da)
101
Base Unit
m
L
g
deci
centi
milli
d
10-1
c
10-2
m
10-3
Write the correct abbreviation for each metric unit.
1) kilogram ________
2) milliliter ________
3) kilometer ________
4) meter ________
5) millimeter ________
6) centimeter ________
7) gram ________
8) liter ________
9) milligram ________
Try these conversions, using the method we discussed in class (moving the decimal place).
10) 2000 mg = ____________ g
14) 16 cm = ____________ mm
11) 104 km = ____________ m
15) 165 mm = ____________ Dm
12) 1.3 hL = ____________ L
16) 0.97 kg = ____________ hg
13) 530 m = ____________ mm
17) 0.0145 kL = ____________ L
Compare these two values using <, >, or =. You will have to match the units on the two values
in order to compare them accurately.
18) 63 cm
19) 536 cm
6m
53.6 dm
20) 1,500 mL
21) 43 mg
1.5 L
5g
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Homework #5: Dimensional Analysis
Make the following conversions using dimensional analysis.
1) Convert 16.7 inches to feet
2) Convert 2,465,876 inches to kilometers (there are 2.54 centimeters in one inch)
3) Convert 48, 987 minutes to days
4) Convert 4.75 centimeters to meters
5) Convert 27 months to fortnights (there are 14 days in a fortnight and ~30 days in a month)
6) Convert 4.66 centimeters to miles (there are 0.6 miles in a kilometer)
7) Convert 0.09 miles to inches (there are 36 inches in a yard and 1760 yards in a mile)
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Homework #6: Dimensional Analysis Practice
Conversions:
1 hour = 60 minutes
1 mile = 5,280 feet
1 km = 0.62 miles
1 quart = 0.946 liters
1 minute = 60 seconds
60 minutes = 1 hour
1 yard = 3 feet
1 kg = 2.2 lbs.
1 foot = 12 inches
365 days = 1 year
1 meter = 3.28 feet
1 lb = 0.45 kg
1 inch = 2.54 cm = 25.4 mm
Convert the following quantities using the conversion factors above and dimensional analysis.
1) 565,900 seconds into days
2) 17 years into minutes
3) 43 miles into feet
4) 165 pounds into kilograms
5) 100 yards into meters
6) 22,647 inches into miles
7) 2678 cm into feet
8) 60 miles into yards
9) 125 miles/hour to feet/second