Modern Physics For Science And Engineering
by Marshall L. Burns
This book provides an introduction to modern physics for students who have completed an academic year of general physics. As a continuation of introductory general physics, it includes the subject areas of classical relativity (Chapter 1), Einstein’s special theory of relativity (Chapters 2-4), the old quantum theory (Chapters 5-7), an introduction to quantum mechanics (Chapters 8-10), and introductory classical and quantum statistical mechanics (Chapters 11-12). In a two-term course, Chapters 1-7 may be covered in the first term and Chapters 8-12 in the second. For schools offering a one-term course in modern physics, many of the topics in Chapters 1-7 may have previously been covered; consequently, the portions of this textbook to be covered might include parts of the old quantum theory, all of quantum mechanics, and possibly some of the topics in statistical mechanics.
A major objective of this book is to enhance student understanding and appreciation of the fundamentals of physics by illustrating the necessary physical and quantitative reasoning with fundamentals that is essential for theoretical modeling of phenomena in science and engineering. The
majority of physics textbooks at both the introductory and the intermediate level concentrate on introducing the basic concepts, formulas, and associated terminology of a broad spectrum of physics topics, leaving little space for the development of mathematical logic and physical reasoning from first principles.In this textbook, a deliberate and detailed approach has been employed. All of the topics presented are developed from first principles. In fact, all but three equations are rigorously derived via physical reasoning before being applied to problems or used in the discussion of other topics.Thus, the order of topics throughout the text is dictated by the requirement that fundamentals and physical derivations be carefully and judiciously introduced. And there is a gradual increase in the complexity of topics being considered to allow students to mature steadily in physical and quantitative reasoning as they progress through the book. For example, relativity is discussed early, since it depends on only a small number of physical fundamentals from kinematics and dynamics of general classical mechanics.
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