Lesson Plan
Section 4 Electric Power
PACING
Regular Schedule:
Block Schedule:
with lab(s): N/A
with lab(s): N/A
without lab(s): 1 day
without lab(s): 1/2 day
OBJECTIVES
1. Differential between direct current and alternating current.
2. Relate electric power to the rate at which electrical energy is converted to other forms
of energy. Calculate electric power and the cost of running electrical appliances.
NATIONAL SCIENCE EDUCATION STANDARDS
UCP 1: Systems, order, and organization
UCP 2: Evidence, models, and explanation
UCP 3: Change, consistency, and measurements
UCP 4: Evolution and equilibrium
SAI 1:
Abilities to do scientific inquiry
SAI 2:
Understanding about scientific inquiry
ST 2:
Understanding about science and technology
HNS 1: Science as a human endeavor
HNS 2: Nature of science
HNS 3: History of science
SPSP 2: Populations, resources, and environments
SPSP 5: Science and technology in society
FOCUS (5 minutes)
__ Overview Review the objectives listed in the Student Edition. (GENERAL)
MOTIVATE (5 minutes)
__ Demonstration, Potential Difference as a Source of Current, TE This demonstration
uses marbles and an incline plane to show the function of a battery or generator and the
conservation of charge. (BASIC)
KEY SE = Student Edition TE = Teacher Edition ANC = Ancillary Workbook OSP = One-Stop Planner
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Holt Physics
1
Chapter 17
Lesson Plan
__ Teaching Tip, p. 619, TE Have students research the decision to supply homes and
businesses with alternating current rather than direct current. (ADVANCED)
TEACH (25 minutes)
__ PowerPoint® Resources Use the customizable presentation to help students master the
concepts in this section. (GENERAL)
__ Visual Strategy, Figure 15, TE Students compare the electrical energy changes in the
figure to the mechanical energy changes involved in carrying tennis balls up stairs and
then dropping them down again. (GENERAL)
__ Quick Lab, Energy Use in Home Appliances, SE Students look for labels on their
appliances and find out how much it costs to run them for one hour. (GENERAL)
__ Sample Set E, Electric Power, SE This sample and practice problem set covers electric
power. (BASIC)
__ Appendix J: Advanced Topics, Electron Tunneling, SE This feature allows students to
explore higher-level concepts related to the chapter. (ADVANCED)
__ Teaching Tip, p. 622, TE List a variety of values for energy on the board, and have
students practice converting from one form to another. (BASIC)
__ Classroom Practice, Cost of Electrical Energy, TE Use this problem as a teamwork
exercise or for demonstration at the board or on an overhead projector. (GENERAL)
CLOSE (10 minutes)
__ Section Review, SE Students answer review questions, critical-thinking questions, and
interpreting-graphics questions that assess their understanding of the section objectives.
(GENERAL)
__ Study Guide, Electric Power, ANC Use this worksheet to review the main concepts
presented in the section. (GENERAL)
__ Section Quiz, ANC Use this quiz to assess students' understanding of the section.
(BASIC)
OTHER RESOURCE OPTIONS
__ Holt Online Learning Students can access interactive problem-solving help and active
visual concept development with the Holt Physics Online Edition available at
go.hrw.com.
__ Integrating Chemistry, Rechargeable Ni-Cd Batteries, Online Students can visit
go.hrw.com and enter the keyword HF6ELCX to find this activity. Teacher resources can
be found by entering the keyword HF6ELCXT. (GENERAL)
__ Practice Problems, Online Students can visit go.hrw.com and enter the keyword
HF6ELCX to find a sample and practice problems on the cost of electrical energy.
Teacher resources can be found by entering the keyword HF6ELCXT.
KEY SE = Student Edition TE = Teacher Edition ANC = Ancillary Workbook OSP = One-Stop Planner
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Holt Physics
2
Chapter 17
Lesson Plan
__ Problem Workbook, Sample Set E: Electric Power, ANC This worksheet provides an
additional example problem and several practice problems that cover electric power.
(GENERAL)
__ Problem Bank, Sample Set E: Electric Power, OSP This worksheet provides a third
example problem and several practice problems that cover electric power. (GENERAL)
__ Invention Lab, Battery-Operated Heater, ANC Students use the relationship between
current and the resistance and length of a wire to cause a wire to reach a certain
temperature when current is present in the wire. (ADVANCED)
__ CBL Experiment, Electrical Energy, ANC In this scenario-based CBL lab, students
use CBLs and sensors to develop a model to determine the overall efficiency of an electric
motor used in a model car and to investigate how the weight of the car affects the motors’
efficiency. (ADVANCED)
KEY SE = Student Edition TE = Teacher Edition ANC = Ancillary Workbook OSP = One-Stop Planner
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Holt Physics
3
Chapter 17
Lesson Plan
End of Chapter Review and Assessment
PACING
Regular Schedule:
Block Schedule:
with lab(s): N/A
with lab(s): N/A
without lab(s): 2 days
without lab(s): 1 day
__ Chapter Highlights, p. 625, SE This page summarizes the vocabulary terms and key
concepts of the chapter.
__ Chapter Review, pp. 626–631, SE Students review the chapter material with review
questions, conceptual questions, practice problems, and a mixed review section.
__ Alternative Assessment, p. 631, SE These projects challenge students to apply and
extend concepts that they have learned in the chapter. (ADVANCED)
__ Graphing Calculator Practice, p. 630, SE Students program their graphing calculators
to determine the potential difference required given the capacitance and energy stored by a
capacitor. (GENERAL)
__ Standardized Test Prep, pp. 632–633, SE This feature helps students sharpen their testtaking abilities while reviewing the chapter content. (GENERAL)
__ Appendix D: Equations, p. 862, SE This appendix summarizes the equations introduced
in the chapter.
__ Appendix I: Additional Problems, pp. 892–893, SE This appendix provides additional
mixed practice problems that cover the equations introduced in the chapter.
__ Study Guide, Mixed Review, ANC Students can use this worksheet to review the main
concepts of the chapter in preparation for the chapter test. (GENERAL)
__ Holt PuzzlePro® Use this software to create crossword puzzles and word searches that
make learning vocabulary fun.
__ Chapter Test A, ANC Assign this test for general-level chapter assessment. (GENERAL)
__ Chapter Test B, ANC Assign this test for advanced-level chapter assessment.
(ADVANCED)
__ Test Generator Create a customized homework assignment, quiz, or test using the
ExamView® Test Generator.
__ Test Item Listing, OSP The Holt Physics Test Generator contains a file of test items for
each chapter of the textbook. This Test Item Listing is a print-out of all the test items in
the Test Generator for this chapter.
OTHER RESOURCE OPTIONS
__ Scientific American, Online For advanced-level project ideas from Scientific American,
students can visit go.hrw.com and type in the keyword HF6SAH.
KEY SE = Student Edition TE = Teacher Edition ANC = Ancillary Workbook OSP = One-Stop Planner
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Holt Physics
4
Chapter 17