TECHNOLOGY-BASED LAB ACTIVITIES

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Chapter 19 Technology Lab Electrical Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Chapter 20 Technology Lab Series and Parallel Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Chapter 21 Technology Lab Magnetic Field Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Copyright © by Holt, Rinehart and Winston. All rights reserved. iv Contents
HOLT PHYSICS Introduction to the Technology-Based Lab Activities Modeling the physical world Scientists and engineers often go to the laboratory to develop models of physical situations found in the world outside the lab. Each of the activities in this booklet presents a real-world scenario or problem for you to model in the laboratory. You will use your knowledge of physics to develop the model, and then you will test the model by collecting and analyzing data. After you have established a good working model, you will use the model to answer questions or solve problems in the real-world scenario. Several different types of models may be used in a physics lab. A physical model is a physical representation of a real physical system, but the model is simplified and is often a small-scale representation. A mathematical model is a mathematical equation or set of equations that can be used to represent a physical phenomenon or relationship. A graphical model is a graph or set of graphs that can be used to represent the relationships between physical quantities. You will encounter all three of these types of models as you do the activities in this booklet. As you work on these activities, you will develop a deeper understanding of how the concepts presented in your physics textbook relate to everyday physical phenomena, and you will use your understanding of physics to solve problems like those faced by physicists and engineers everyday. Copyright © by Holt, Rinehart and Winston. All rights reserved. Calculator-Based Laboratory (CBL) technology Calculator-Based Laboratory (CBL) technology from Texas Instruments, coupled with software and probes by Vernier Software & Technology, turns your graphing calculator into a powerful lab instrument. The CBL is a separate unit that links to your graphing calculator with a black link cable. Various probes, such as motion detectors, force sensors, temperature probes, light sensors, or voltage probes, can be plugged into the CBL and allow your calculator and the CBL to collect physical data with a high degree of precision. You can then use your calculator to analyze the data, plot graphs, and calculate final results. See page vii for information on downloading the necessary software for your graphing calculator. Each activity contains detailed instructions on using the CBL and probes. However, if you need additional information, ask your teacher about contacting TI or Vernier Software & Technology for CBL tutorials or technical support. v
Page 1 and 2: TECHNOLOGY-BASED LAB ACTIVITIES CBL
Page 3: Contents Introduction to the Techno
Page 7 and 8: HOLT PHYSICS Downloading Graphing C
Page 9 and 10: HOLT PHYSICS Safety in the Physics
Page 11 and 12: Chapter 1 HOLT PHYSICS Technology L
Page 13 and 14: • Press e, then select USE TIME S
Page 15 and 16: 21. Remove the masking tape strips
Page 19 and 20: PROCEDURE Copyright © by Holt, Rin
Page 21 and 22: ANALYSIS 1. Graph tracing Use the c
Page 25 and 26: Copyright © by Holt, Rinehart and
Page 27 and 28: the rates of free-fall acceleration
Page 33 and 34: 5. Applying theory The equation in
Page 39 and 40: Shoe: _______________ Mass of shoe:
Page 45 and 46: CONCLUSIONS 6. Applying the model A
Page 47 and 48: DEVELOPING THE MODEL You have decid
Page 49 and 50: ANALYSIS Copyright © by Holt, Rine
Page 51 and 52: 10. Applying results According to y
Page 53 and 54: DEVELOPING THE MODEL You will use a
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• Press e and select CHANNEL 1 fr
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6. Calculating The change in moment
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DEVELOPING THE MODEL In this activi
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Copyright © by Holt, Rinehart and
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• Press e, and read the mean acce
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2. Making predictions You can also
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DATA TABLES Fabric type Wet or dry?
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Chapter 12 HOLT PHYSICS Technology
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5. Observe the reading on the calcu
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8. Thinking critically In designing
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DEVELOPING THE MODEL The microphone
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• Select ADJUST A from the MODEL
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DATA TABLE Artificial light and two
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6. Comparing results Compare the av
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DEVELOPING THE MODEL Figure 19-1 sh
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6. Drawing conclusions What is the
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DEVELOPING THE MODEL The ability to
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Part II Parallel Circuits 14. Conne
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3. Calculating Using your measureme
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DEVELOPING THE MODEL First, you wil
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• Press e to see a graph of your
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