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Physics for Scientists & Engineers with Modern Physics 4th Edition



Physics for Scientists & Engineers with Modern Physics 4th Edition PDF

Author: Douglas Giancoli

Publisher: Pearson

Genres:

Publish Date: August 25, 2008

ISBN-10: 0131495089

Pages: 1328

File Type: PDF

Language: English

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Book Preface

I was motivated from the beginning to write a textbook different from others that
present physics as a sequence of facts, like a Sears catalog: “here are the facts and
you better learn them.” Instead of that approach in which topics are begun
formally and dogmatically, I have sought to begin each topic with concrete
observations and experiences students can relate to: start with specifics and only then
go to the great generalizations and the more formal aspects of a topic, showing why
we believe what we believe. This approach reflects how science is actually practiced.

Why a Fourth Edition?

Two recent trends in physics texbooks are disturbing: (1) their revision cycles

have become short—they are being revised every 3 or 4 years; (2) the books are
getting larger, some over 1500 pages. I don’t see how either trend can be of
benefit to students. My response: (1) It has been 8 years since the previous
edition of this book. (2) This book makes use of physics education research,
although it avoids the detail a Professor may need to say in class but in a book shuts
down the reader. And this book still remains among the shortest.

This new edition introduces some important new pedagogic tools. It contains
new physics (such as in cosmology) and many new appealing applications (list on
previous page). Pages and page breaks have been carefully formatted to make the
physics easier to follow: no turning a page in the middle of a derivation or Example.
Great efforts were made to make the book attractive so students will want to read it.
Some of the new features are listed below.

What’s New

Chapter-Opening Questions: Each Chapter begins with a multiple-choice question,
whose responses include common misconceptions. Students are asked to answer
before starting the Chapter, to get them involved in the material and to get any
preconceived notions out on the table. The issues reappear later in the Chapter,
usually as Exercises, after the material has been covered. The Chapter-Opening
Questions also show students the power and usefulness of Physics.

APPROACH paragraph in worked-out numerical Examples . A short introductory
paragraph before the Solution, outlining an approach and the steps we can take to
get started. Brief NOTES after the Solution may remark on the Solution, may give
an alternate approach, or mention an application.

Step-by-Step Examples: After many Problem Solving Strategies (more than 20 in
the book), the next Example is done step-by-step following precisely the steps just
seen.

Exercises within the text, after an Example or derivation, give students a chance to
see if they have understood enough to answer a simple question or do a simple
calculation. Many are multiple choice.

Greater clarity : No topic, no paragraph in this book was overlooked in the search
to improve the clarity and conciseness of the presentation. Phrases and sentences
that may slow down the principal argument have been eliminated: keep to the
essentials at first, give the elaborations later.

F, y, B Vector notation, arrows: The symbols for vector quantities in the text and Figures
now have a tiny arrow over them, so they are similar to what we write by hand.
Cosmological Revolution: With generous help from top experts in the field,
readers have the latest results.

Page layout: more than in the previous edition, serious attention has been paid to
how each page is formatted. Examples and all important derivations and
arguments are on facing pages. Students then don’t have to turn back and forth.
Throughout, readers see, on two facing pages, an important slice of physics.
New Applications’. LCDs, digital cameras and electronic sensors (CCD, CMOS),
electric hazards, GFCIs, photocopiers, inkjet and laser printers, metal detectors,
underwater vision, curve balls, airplane wings, DNA, how we actually see images.
(Turn back a page to see a longer list.)

Examples modified: more math steps are spelled out, and many new Examples
added. About 10% of all Examples are Estimation Examples.

This Book is Shorter than other complete full-service books at this level. Shorter
explanations are easier to understand and more likely to be read.
Content and Organizational Changes
• Rotational Motion: Chapters 10 and 11 have been reorganized. All of angular
momentum is now in Chapter 11.
• First law of thermodynamics, in Chapter 19, has been rewritten and extended.
The full form is given: AK + A U + A Eint = Q — W, where internal energy is
Ete, and U is potential energy; the form Q — W is kept so that dW = P dV.
• Kinematics and Dynamics of Circular Motion are now treated together in
Chapter 5.
• Work and Energy, Chapters 7 and 8, have been carefully revised.
• Work done by friction is discussed now with energy conservation (energy
terms due to friction).
• Chapters on Inductance and AC Circuits have been combined into one:
Chapter 30.
• Graphical Analysis and Numerical Integration is a new optional Section 2-9.
Problems requiring a computer or graphing calculator are found at the end
of most Chapters.
• Length of an object is a script £ rather than normal /, which looks like 1 or I
(moment of inertia, current), as in F = IIB. Capital L is for angular
momentum, latent heat, inductance, dimensions of length [L\.
• Newton’s law of gravitation remains in Chapter 6. Why? Because the 1/r2
law is too important to relegate to a late chapter that might not be covered
at all late in the semester; furthermore, it is one of the basic forces in nature.
In Chapter 8 we can treat real gravitational potential energy and have a fine
instance of using U = – JF • di.
• New Appendices include the differential form of Maxwell’s equations and
more on dimensional analysis.
• Problem Solving Strategies are found on pages 30, 58, 64, 96,102,125,166,
198,229,261,314,504,551,571, 685,716,740,763,849, 871, and 913.
Organization
Some instructors may find that this book contains more material than can be
covered in their courses. The text offers great flexibility. Sections marked with a
star * are considered optional. These contain slightly more advanced physics
material, or material not usually covered in typical courses and/or interesting
applications; they contain no material needed in later Chapters (except perhaps in
later optional Sections). For a brief course, all optional material could be dropped
as well as major parts of Chapters 1, 13, 16, 26, 30, and 35, and selected parts of
Chapters 9,12,19,20, 33, and the modern physics Chapters. Topics not covered in
class can be a valuable resource for later study by students. Indeed, this text can
serve as a useful reference for years because of its wide range of coverage.


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