Physics, 11th Edition

Book Preface

Skills Development
One of the great strengths of this text is the synergistic relationship  between conceptual understanding, problem solving, and establishing relevance. We identify here some of the core features of the text  that support these synergies.
Conceptual Understanding Students often regard physics as  a collection of equations that can be used blindly to solve problems. However, a good problem-solving technique does not begin with equations. It  starts with a fi rm grasp of physics concepts and how they fi t together to  provide a coherent description of natural phenomena. Helping students  develop a conceptual understanding of physics principles is a primary  goal of this text. The features in the text that work toward this goal are:
• Lecture Videos (one for each section of the text)
• Conceptual Examples
• Concepts & Calculations problems (now with video solutions)
• Focus on Concepts homework material
• Check Your Understanding questions
• Concept Simulations (an online feature)

Problem Solving The ability to reason in an organized and  mathematically correct manner is essential to solving problems, and  helping students to improve their reasoning skills is also one of our primary goals. To this end, we have included the following features:
• Math Skills boxes for just-in-time delivery of math support
• Explicit reasoning steps in all examples
• Reasoning Strategies for solving certain classes of problems
• Analyzing Multiple-Concept Problems
• Video Support and Tutorials (in WileyPLUS) Physics Demonstration Videos Video Help Concept Simulations
• Problem Solving Insights

Relevance Since it is always easier to learn something new if  it can be related to day-to-day living, we want to show students that  physics principles come into play over and over again in their lives. To  emphasize this goal, we have included a wide range of applications of  physics principles. Many of these applications are biomedical in nature  (for example, wireless capsule endoscopy). Others deal with modern  technology (for example, 3-D movies). Still others focus on things that  we take for granted in our lives (for example, household plumbing). To call attention to the applications we have used the label The Physics of.

The WileyPLUS with ORION Advantage

WileyPLUS is an innovative, research-based online environment for effective teaching and learning. The hallmark of WileyPLUS with
ORION for this text is that the media- and text-based resources are  all created by the authors of the project, providing a seamless presentation of content.
WileyPLUS builds students’ confi dence because it takes the guesswork out of studying by providing students with a clear roadmap:  what to do, how to do it, if they did it right.
With WileyPLUS, our effi cacy research shows that students improve  their outcomes by as much as one letter grade. WileyPLUS helps  students take more initiative, so you’ll have greater impact on their  achievement in the classroom and beyond.

With WileyPLUS, instructors receive:
• WileyPLUS Quickstart: WileyPLUS comes with a pre-created  course plan designed by the author team exclusively for this  course. The course plan includes both conceptual assignments and  problem-solving assignments, and is found in the Quickstart menu.
• Breadth and Depth of Assessment: WileyPLUS contains a  wealth of online questions and problems for creating online homework and assessment including:
• ALL end-of-chapter questions, plus favorites from past editions  not found in the printed text, coded algorithmically, each with at  least one form of instructor-controlled question assistance (GO  tutorials, hints, link to text, video help)
• Simulation, animation, and video-based questions
• Free body and vector drawing questions
• Test bank questions
• Gradebook: WileyPLUS provides instant access to reports on  trends in class performance, student use of course materials, and  progress toward learning objectives, thereby helping instructors’  decisions and driving classroom discussion With WileyPLUS, students receive:
• The complete digital textbook, saving students up to 60% off the  cost of a printed text
• Question assistance, including links to relevant sections in the  online digital textbook
• Immediate feedback and proof of progress, 24/7
• Integrated, multimedia resources—including animations, simulations, video demonstrations, and much more—that provide multiple study paths and encourage more active learning
• GO Tutorials
• Chalkboard Videos
• Free Body Diagram/Vector Drawing Questions

New to WileyPlus for the Eleventh Edition

Lecture Videos Short video lectures (259 in all!) have been  created and are narrated by the authors for every section of the book.
These animated lectures are 2–10 minutes in length, and introduce the  basic concepts and learning objectives of each section. Each video is  accompanied by questions that can be assigned and graded within  WileyPLUS, which are designed to check the students’ understanding  of the video lecture content. Other than providing another learning  medium that can be accessed by the students at their convenience,  these videos are designed to accommodate other learning strategies.
For instance, an instructor can create a full video lecture by building a  sequence of videos, section by section, and assigning corresponding  questions that the students must complete before class. This functionality is well suited for “fl ipping the classroom,” although it also  serves a purpose for conventional lecturing, such as reading quizzes  that can be administered outside of lecture. The videos also serve
well for reviewing before exams. This comprehensive set of customizable lectures and questions is also suitable for online courses, where  students otherwise rely solely on written content.

Team Problems In each chapter we have introduced two new  “team problems” in the end-of-chapter problems that are designed for  group problem-solving exercises. These are context-rich problems of  medium diffi culty designed for group cooperation, but may also be  tackled by the individual student. Many of these problems read like  parts of an adventure story, where the student (or their team) is the main  character. The motivation for each problem is clear and personal—the  pronoun “you” is used throughout, and the problem statements often  start with “You and your team need to …”. Pictures and diagrams  are not given with these problems except in rare cases. Students must  visualize the problems and discuss strategies with their team members to solve them. The problems require two or more steps/multiple  concepts (hence the “medium” diffi culty level) and may require basic  principles learned earlier. Sometimes, there is no specifi c target variable  given, but rather questions like Will it work? or Is it safe? Suggested  solutions are given in the Instructor Solutions Manual.

The Physics of Problems The text now contains 294 realworld application examples that refl ect our commitment to showing  students how relevant physics is in their lives. Each application is  identifi ed in the text with the label The Physics of. A subset of these  examples focuses on biomedical applications, and we have increased  their number by 40% in the new edition. Students majoring in biomedical and life sciences will fi nd new examples in every chapter  covering topics such as cooling the human brain, abdominal aortic  aneurysms, the mechanical properties of bone, and many more! The  application of physics principles to biomedical problems in these  examples is similar to what premed students will encounter in the  Chemical and Physical Foundations of Biological Systems Passages section of the MCAT. All biomedical examples and end-of-chapter  problems will be marked with the BIO icon.

Brief Contents
1 Introduction and Mathematical Concepts 1
2 Kinematics in One Dimension 27
3 Kinematics in Two Dimensions 55
4 Forces and Newton’s Laws of Motion 80
5 Dynamics of Uniform Circular Motion 121
6 Work and Energy 144
7 Impulse and Momentum 175
8 Rotational Kinematics 200
9 Rotational Dynamics 223
10 Simple Harmonic Motion and Elasticity 257
11 Fluids 289
12 Temperature and Heat 326
13 The Transfer of Heat 360
14 The Ideal Gas Law and Kinetic Theory 380
15 Thermodynamics 401
16 Waves and Sound 433
17 The Principle of Linear Superposition and Interference Phenomena 465
18 Electric Forces and Electric Fields 489
19 Electric Potential Energy and the Electric Potential 523
20 Electric Circuits 551
21 Magnetic Forces and Magnetic Fields 590
22 Electromagnetic Induction 625
23 Alternating Current Circuits 661
24 Electromagnetic Waves 684
25 The Reflection of Light: Mirrors 711
26 The Refraction of Light: Lenses and Optical Instruments 733
27 Interference and the Wave Nature of Light 777
28 Special Relativity 808
29 Particles and Waves 832
30 The Nature of the Atom 853
31 Nuclear Physics and Radioactivity 885
32 Ionizing Radiation, Nuclear Energy, and Elementary Particles 91