Q1 A pencil is 16.2 cm long. What is its length in inches? Q2 A person has a mass of 63.4 kg. What is that weight in pounds? Q3 A bottle of olive oil contains 1.4 qt of olive oil. What is that volume in milliliters
- Rounding Off
|
Initial Number |
Student’s Rounded Value |
1. Correct? (yes/no) |
2. Corrected (if needed) |
|
143.63212 |
144 |
|
|
|
532 800 |
533 |
|
|
|
0.008 583 45 |
0.009 |
|
|
|
8 |
8.00 |
|
|
- Significant Figures in Calculations
- Multiplication and Division
Perform the following multiplication and division calculations. Give a final answer with the correct number of significant figures:
0.1184 ´ 8.00 ´ 0.0345
(42.4)(15.6)
1.265
(35.56)(1.45)
(4.8)(0.56)
- Addition and Subtraction
Perform the following addition and subtraction calculations. Give a final answer with the correct number of decimal places.
13.45 mL + 0.4552 mL
145.5 m + 86.58 m + 1045 m
245.625 g – 80.2 g
4.62 cm – 0.885 cm
Copyright © 2014 Pearson Education, Inc. 19
Area
|
Length |
1. Your measurements
|
3. Another student’s measurements
|
|
Width |
|
|
|
Area (2., 4.) |
|
|
Why could two students obtain different values for the calculated area of the same rectangle?
- Volume of a Solid
- Shape of the solid Dimensions to measure
- Height Length Width Diameter (if cylinder)
- Formula for volume of solid
Volume of the solid (Show calculations of volume, including the units.)
- Equalities and Conversion Factors
Conversion Factors and Problem Solving 21
C.1 Metric—Metric Conversion Factors for Volume
1. Equality 1 L = mL
- Conversion factors
- Metric—U.S. System Conversion Factors for Volume
- Number of milliliters in 1 qt mL (Experimental factor)
2. True equality 1 qt = mL
- Conversion factors
How does your experimental factor compare to the conversion factor 946 mL/1 qt.?
C.3 Metric—U.S. System Conversion Factors for Length
- Vertical page length (measured) Vertical page length (measured) cm
- cm/in. = cm/1 (Experimental factor)
3. True equality in. = cm
- Conversion factors
How does your experimental factor compare to the conversion factor 2.54 cm/1 in.?
C.4 Metric—U.S. System Conversion Factors for Mass
1. Name of commercial product
- Mass, in grams, stated on label g Weight, in pounds or ounces, stated on label
- Weight in lb lb (Convert oz to lb if )
- g/lb = g/1 lb (Experimental factor)
5. True equality 1 lb = g
- Conversion factors
How does your experimental factor compare to the standard conversion factor of 454 g/lb?
D. Problem Solving Using Conversion Factors
Your metric height
1. Height (inches) in.
- Height in centimeters cm (Show your calculations)
- Height in meters m (Show your calculations)
Questions and Problems
Q1 A pencil is 16.2 cm long. What is its length in inches?
Q2 A person has a mass of 63.4 kg. What is that weight in pounds?
Q3 A bottle of olive oil contains 1.4 qt of olive oil. What is that volume in milliliters?
Q4 How many liters of plasma are present in 8.5 pt?
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