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Name Peter Sorrentino Class Physics Date 3/9 Monday Chapter 5: Tension and Power Section Section 5-4: Power Objectives 1. Relate the concepts of energy, time, and power. 2. Calculate power in two different ways. 3. Explain the effect of machines on work and power. National Science Education Standards Covered UCP 1: Systems, order, and organization UCP 2: Evidence, models, and explanation UCP 3: Change, consistency, and measurements UCP 5: Form and function ST 1: Abilities of technological design ST 2: Understanding about science and technology Focus 5 minutes Use item 1 on p. 187 for a classroom discussion. Motivate 5 minutes Throw a ball into the air, and catch it as it falls back to its initial height. Ask students to analyze the mechanical energy of the ball throughout its flight. Point out that you do work on the ball, which causes it to have kinetic energy. Use this analysis to lead into a discussion of the work-energy theorem. Teach 20 minutes Sample Problem 5F, p. 188, “Power.” This problem demonstrates how to calculate the power necessary to lift an object using mass, distance, and time. Classroom Practice, ATE p. 188, “Power.” This section offers problems that can be used as teamwork exercises or for further demonstration at the chalkboard or on an overhead projector. Extend 5 minutes Conceptual Challenge, p. 187. This feature tests students’ understanding of the concept of power. Close 10 minutes Section Review Worksheet 5-4, “Work, Energy, and Power.” Concept Review activities reinforce fundamental knowledge from this section. Tuesday Homework problems review Chapter 5 problems: page 193, problem numbers: 8, 9, 10, 23, 24, 25, 33, 34, 36, 42, 46, 50, 56, 59 Holt Physics Copyright (c) by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson Plan p. 1 Wednesday Chapter 5 Review Chapter Summary, p. 192. This page summarizes the key concepts and equations of the chapter. Teaching Tip, ATE p. 192. This tip suggests that students write an essay that summarizes the differences between the various forms of energy discussed in this chapter Performance assessment, p. 199. This section extends students’ understanding of the implications of the topics of this chapter. Thurday Chapter 5 Assessment Chapter Tests, Chapter 5 Test. Friday Semester Project: Review requirements Discuss issues Group work Holt Physics Copyright (c) by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson Plan p. 2