Lesson Plan Section 2 Generators, Motors, and Mutual Inductance 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. Describe how generators and motors operate. Explain the energy conversions that take place in generators and motors. 2. Describe how mutual induction occurs in circuits. 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 UCP 5: Form and function ST 1: Abilities of technological design ST 2: Understanding about science and technology SPSP 5: Science and technology in society FOCUS (5 minutes) __ Overview Review the objectives listed in the Student Edition. (GENERAL) MOTIVATE (5 minutes) __ Visual Strategy, Figure 8, TE Students compare the figure with the analogy introduced in the demonstration on alternating current. (ADVANCED) TEACH (25 minutes) __ PowerPoint® Resources Use the customizable presentation to help students master the concepts in this section. (GENERAL) __ Transparency 109, Induction of an emf in an ac Generator This transparency illustrates induction of an emf in an ac generator at four different instants during the rotation of the loop in the magnetic field. 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 20 Lesson Plan __ Transparency 110, Components of a DC Motor This transparency illustrates the basic components of a dc motor. __ Appendix J: Advanced Topics, Angular Kinematics, SE This feature allows students to explore higher-level concepts related to the chapter. (ADVANCED) __ Practice Problems, Induction in Generators, Online Students can visit go.hrw.com and enter the keyword HF6EMIX to find this activity. Teacher resources can be found by entering the keyword HF6EMIXT. (GENERAL) __ Demonstration, Electric Motor, TE This demonstration uses a hand operated generator, a capacitor, a resistor, and connecting wires to illustrate the similarity between generators and motors. (GENERAL) __ Demonstration, ac and dc, TE This demonstration uses a hand operated generator and shows students the difference between alternating current and direct current. (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, Generators, Motors, and Mutual Inductance, 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. __ SciLinks, Online Students can visit www.scilinks.org to find internet resources related to the chapter content. Topic: Alternating Current SciLinks Code: HF60050 __ SciLinks, Online Students can visit www.scilinks.org to find internet resources related to the chapter content. Topic: Electrical Safety SciLinks Code: HF60476 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 20