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Physics Core/AP 1 and 2

Chapter 15: 5-6

Course Materials are always under revision! Weblecture content may change anytime prior to two weeks before scheduled chat session for content.

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Phsyics 15: 5-6 Heat Engines and Work


Reading Preparation

Text Reading: Giancoli, Physics - Principles with Applications, Chapter 15: 5-6

Study Points

Key Equations

  • Engine efficiency e   =   W Q H   =   Q H     Q L Q H   =   1   Q L Q H  
  • Carnot Ideal Efficiency e   =    T H     T L T H   =   1   T L T H  
  • Coefficient of performance COP   =   Q L W   =   Q L Q H Q L     COP ideal   =   T L T H     T L

Web Lecture

Read the following weblecture before chat: The Second Law of Thermodynamics

Study Activity

Use the Heat Engine Simulator to change temperatures between the "source" and "sink". What happens to heat flow and efficiency?

Optional Websites:

Even though a bit dated, Isaac Asimov's article on Thermodynamics from his overview of physical science is still one of the best treatments of the subject.

Chat Preparation Activities

Chapter Quiz

Lab Work

If you want lab credit for this course, you must complete at least 12 labs (honors course) or 18 labs (AP students). One or more lab exercises are posted for each chapter as part of the homework assignment. We will be reviewing lab work at regular intervals, so do not get behind!