KEY-FinalExamStudyGuide_Fall2013

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Name ___________________________ Date ___________________ Class __________________ 27. What properties explain the behavior of liquid-filled thermometers? Almost all liquids expand in volume with an increase in temperature. This expansion forces the liquid higher in the thermometer tube as the temperature rises. As the temperature falls, the liquid contracts and its level in the tube drops. 28. What are the two reference temperatures on the Celsius scale? The freezing point of water is 0°C and the boiling point of water is 100°C. 29. What is the zero point, 0 K, on the Kelvin scale called? ______________________ absolute zero 30. A change of temperature equal to one Kelvin is equal to a change of temperature of how many degrees Celsius? ______________________ 1°C 31. Complete the diagram to show the reference temperatures in the Celsius and Kelvin scales. Celsius 100 divisions © Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved. Kelvin ________ 0°C ________ 100°C Freezing point Boiling point of water of water 273.15 K 373.15 K ________ 32. One calorie is the quantity of heat that raises the temperature of ______________________ 1 g of pure water by ______________________ 1°C . SECTION 3.3 CONVERSION PROBLEMS (pages 80–87) This section explains how to construct conversion factors from equivalent measurements. It also describes how to apply the techniques of dimensional analysis to a variety of conversion problems. Conversion Factors (pages 80–81) 100 divisions 1. How are the two parts of a conversion factor related? ________________________________________________ They are equivalent. ________ Chapter 3 Scientific Measurement 25
Name ___________________________ Date ___________________ Class __________________ CHAPTER 3, Scientific Measurement (continued) 2. Look at Figure 3.11. In a conversion factor, the smaller number is part of the quantity that has the ______________________ larger unit. The larger number is part of the quantity that has the ______________________ smaller unit. 3. Is the following sentence true or false? The actual size of a measurement multiplied by a conversion factor remains the same, because the measurement being converted is multiplied by unity. ______________________ true 4. Write two conversion factors based on the relationship between hours and minutes. 60 minutes 1 hour and 1 hour 60 minutes 5. The average lead for a mechanical pencil is 6.0 cm long when it is new. Circle the letter of the conversion factor you would use to find its length in inches. a. 2.54 cm 1 in. b. c. d. 1 in. 2.54 cm 1 in. 6.0 cm 6.0 cm 1 in. 6. A student is asked to calculate the volume, in milliliters, of 2 cups of oil. There are 225 mL per cup. The student calculates the volume as follows: 1 cup Volume 2 cups 0.08 cup 25 mL List three errors the student made. The conversion factor was inverted. 25 mL was used instead of 225 mL. The unit in the answer is incorrect. Dimensional Analysis (pages 81–83) 7. What is dimensional analysis? Dimensional analysis is a way to analyze and solve problems, using the units, or dimensions, of the measurements. 8. Reread Sample Problem 3.5. The correct conversion factor has the ______________ known unit in the denominator and the ______________ unknown unit in the numerator. © Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved. 26 Guided Reading and Study Workbook
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KEY-FinalExamStudyGuide_Fall2013

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