1. Chapter 3 Scientific Measurement 3.3 Solving Conversion Problems
3.1 Using and Expressing
Measurements
3.2 Units of Measurement
3.3 Solving Conversion
Problems
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2. Calculate how many seconds are in one year (assuming 365 days
Do Now:
Calculate how many seconds are
in one year (assuming 365 days
in one year).
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3. 1 dollar = 4 quarters = 10 dimes =
Conversion Factors
A quantity can be expressed in different ways.
1 dollar = 4 quarters = 10 dimes =
20 nickels = 100 pennies
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4. Conversion factor: ratio of equivalent measurements.
Conversion Factors
Conversion factor: ratio of equivalent measurements.
1 dollar = 4 quarters
conversion factors
1 dollar
4 quarters
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5. 1 meter = 100 centimeters Conversion Factors 100 cm or 1 m
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6. Dimensional Analysis
Dimensional analysis is a way to analyze and solve problems using the units, or dimensions, of the measurements.
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7. Using Dimensional Analysis
Sample Problem 3.9
Using Dimensional Analysis
How many seconds are in a workday that lasts exactly eight hours?
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8. Using Dimensional Analysis
Sample Problem 3.9
Using Dimensional Analysis
How many seconds are in a workday that lasts exactly eight hours?
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9. Converting Between Metric Units Express 750 dg in grams.
Sample Problem 3.11
Converting Between Metric Units
Express 750 dg in grams.
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10. Converting Between Metric Units Express 750 dg in grams.
Sample Problem 3.11
Converting Between Metric Units
Express 750 dg in grams.
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11. Converting Between Metric Units
Sample Problem 3.13
Converting Between Metric Units
The diameter of a sewing needle is cm. What is the diameter in micrometers?
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12. Converting Between Metric Units
Sample Problem 3.13
Converting Between Metric Units
The diameter of a sewing needle is cm. What is the diameter in micrometers?
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13. END OF 3.3
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