目录 改编前言 前言 第三篇 电磁学 第16章 电力与电场 461 16.1 电荷 462 16.2 导体与绝缘体 467 16.3 库仑定律 471 16.4 电场 472 16.5 均匀电场中点电荷的运动 478 16.6 导体的静电平衡 482 16.7 电场的高斯定律 485 第17章 电势 495 17.1 电势能 496 17.2 电势 499 17.3 电场与势的关系 506 17.4 运动电荷的能量守恒 510 17.5 电容器 511 17.6 电介质 514 17.7 电容器储存的能量 520 第18章 电流与电路 531 18.1 电流 532 18.2 电动势与电路 533 18.3 金属中电流的微观图像:自由电子模型 536 18.4 电阻与电阻率 538 18.5 基尔霍夫定律 544 18.6 串联与并联电路 545 18.7 利用基尔霍夫定律进行电路分析 550 18.8 电路中的功率与能量 552 18.9 电流与电压的测量 554 18.10 RC回路 555 18.11 用电安全 559 综合复习:第16~18章 569 第19章 磁力与磁场 573 19.1 磁场 574 19.2 点电荷受到的磁力 577 19.3 带电粒子在匀强磁场中的运动:速度与磁场方向垂直 581 19.4 带电粒子在磁场中的运动:速度与磁场方向间的夹角为任意值 586 19.5 在相互垂直的电场E→和磁场B→中的带电粒子 587 19.6 载流导线受到的磁力 590 19.7 载流线圈受到的力矩 592 19.8 电流激发的磁场 596 19.9 安培定律 601 19.10 磁介质 603 第20章 电磁感应 615 20.1 动生电动势 616 20.2 发电机 619 20.3 法拉第定律 623 20.4 楞次定律 627 20.5 电动机中的反电动势 630 20.6 变压器 631 20.7 涡电流 632 20.8 感应电场 634 20.9 电感 635 20.10 LR回路 639 第21章 交流电 649 21.1 正弦电流与电压:交流电路中的电阻元件 650 21.2 家庭用电 653 21.3 交流电路中的电容元件 654 21.4 交流电路中的电感元件 657 21.5 RLC串联电路 659 21.6 RLC谐振电路 663 21.7 交直流转换 滤波器 665 综合复习:第19~21章 671 第四篇 电磁波和光学 第22章 电磁波 675 22.1 麦克斯韦方程与电磁波 676 22.2 天线 677 22.3 电磁波谱 680 22.4 真空及介质中电磁波的速率 685 22.5 真空中电磁行波的性质 689 22.6 电磁波传播的能量 691 22.7 偏振 695 22.8 电磁波的多普勒效应 702 第23章 干涉与衍射 709 23.1 波振面、波线和惠更斯原理 710 23.2 相干与相消干涉 713 23.3 迈克尔逊干涉仪 717 23.4 薄膜 720 23.5 杨氏双缝实验 725 23.6 光栅 730 23.7 衍射与惠更斯原理 733 23.8 单缝衍射 735 23.9 衍射与光学仪器的分辨本领 738 23.10 X射线衍射 741 23.11 全息 742 综合复习:第22~23章 749 第5篇 相对论 量子力学和粒子物理 第24章 相对论 751 24.1 相对论的假设 752 24.2 同时性与出色的观察者 755 24.3 时间膨胀 758 24.4 长度收缩 761 24.5 不同参考系中的速度 763 24.6 相对论动量 765 24.7 质量与能量 767 24.8 相对论动能 769 第25章 光子与早期的量子物理 779 25.1 量子化 780 25.2 黑体辐射 780 25.3 光电效应 782 25.4 X射线的产生 787 25.5 康普顿散射 788 25.6 光谱与早期原子模型 790 25.7 氢原子的玻尔模型 原子能级 794 25.8 对儿的产生与湮灭 800 第26章 量子物理 807 26.1 波粒二象性 808 26.2 物质波 809 26.3 电子显微镜 812 26.4 不确定原理 814 26.5 束缚粒子的波函数 816 26.6 氢原子:波函数和量子数 818 26.7 不相容原理 原子中电子的排布(除氢原子外) 820 26.8 固体中的电子能级 824 26.9 激光 825 26.10 隧道效应 828 第27章 核物理 836 27.1 原子核的结构 837 27.2 束缚能 840 27.3 放射性 844 27.4 放射性衰变率与半衰期 850 27.5 放射性的生物效应 856 27.6 人工核反应 861 27.7 裂变 863 27.8 聚变 867 第28章 粒子物理 875 28.1 基本粒子 876 28.2 基本相互作用 878 28.3 统一 881 28.4 粒子加速器 883 28.5 粒子物理中尚待解决的问题 884 综合复习:第24~28章 887 附录A 数学知识 A-1 附录B 部分核素表 B-1 答案 AP-1 教师反馈表 Contents PART THREE Electromagnetism Chapter 16 Electric Forces and Fields?461 16.1 Electric Charge?462 16.2 Electric Conductors and Insulators?467 16.3 Coulomb’s Law?471 16.4 The Electric Field?472 16.5 Motion of a Point Charge in a Uniform Electric?Field?478 16.6 Conductors in Electrostatic Equilibrium?482 16.7 Gauss’s Law for Electric Fields?485 Chapter 17 Electric Potential?495 17.1 Electric Potential Energy?496 17.2 Electric Potential?499 17.3 The Relationship Between Electric Field and?Potential?506 17.4 Conservation of Energy for Moving Charges?510 17.5 Capacitors?511 17.6 Dielectrics?514 17.7 Energy Stored in a Capacitor?520 Chapter 18 Electric Current and?Circuits?531 18.1 Electric Current?532 18.2 Emf and Circuits?533 18.3 Microscopic View of Current in a Metal: The?Free-Electron Model?536 18.4 Resistance and Resistivity?538 18.5 Kirchhoff’s Rules?544 18.6 Series and Parallel Circuits?545 18.7 Circuit Analysis Using Kirchhoff’s Rules?550 18.8 Power and Energy in Circuits?552 18.9 Measuring Currents and Voltages?554 18.10 RC Circuits?555 18.11 Electrical Safety?559 Review & Synthesis: Chapters 16–18?569 Chapter 19 Magnetic Forces and?Fields?573 19.1 Magnetic Fields?574 19.2 Magnetic Force on a Point Charge?577 19.3 Charged Particle Moving Perpendicularly to a Uniform Magnetic Field?581 19.4 Motion of a Charged Particle in a Uniform Magnetic Field: General?586 19.5 A Charged Particle in Crossed →(→9)→ and B→ Fields?587 19.6 Magnetic Force on a Current-Carrying Wire?590 19.7 Torque on a Current Loop?592 19.8 Magnetic Field due to an Electric Current?596 19.9 Ampère’s Law?601 19.10 Magnetic Materials?603 Chapter 20 Electromagnetic Induction?615 20.1 Motional Emf?616 20.2 Electric Generators?619 20.3 Faraday’s Law?623 20.4 Lenz’s Law?627 20.5 Back Emf in a Motor?630 20.6 Transformers?631 20.7 Eddy Currents?632 20.8 Induced Electric Fields?634 20.9 Inductance?635 20.10 LR Circuits?639 Chapter 21 Alternating Current?649 21.1 Sinusoidal Currents and Voltages: Resistors in?ac Circuits?650 21.2 Electricity in the Home?653 21.3 Capacitors in ac Circuits?654 21.4 Inductors in ac Circuits?657 21.5 RLC Series Circuits?659 21.6 Resonance in an RLC Circuit?663 21.7 Converting ac to dc; Filters?665 Review & Synthesis: Chapters 19–21?671 PART FOUR Electromagnetic Waves and Optics Chapter 22 Electromagnetic Waves?675 22.1 Maxwell’s Equations and Electromagnetic Waves?676 22.2 Antennas?677 22.3 The Electromagnetic Spectrum?680 22.4 Speed of EM Waves in Vacuum and in Matter?685 22.5 Characteristics of Traveling Electromagnetic Waves in Vacuum?689 22.6 Energy Transport by EM Waves?691 22.7 Polarization?695 22.8 The Doppler Effect for EM Waves?702 Chapter 23 Interference and Diffraction?709 23.1 Wavefronts, Rays, and Huygens’s Principle?710 23.2 Constructive and Destructive Interference?713 23.3 The Michelson Interferometer?717 23.4 Thin Films?720 23.5 Young’s Double-Slit Experiment?725 23.6 Gratings?730 23.7 Diffraction and Huygens’s Principle?733 23.8 Diffraction by a Single Slit?735 23.9 Diffraction and the Resolution of Optical Instruments?738 23.10 X-Ray Diffraction?741 23.11 Holography?742 Review & Synthesis: Chapters 22–23?749 PART FIVE Quantum and Particle Physics and?Relativity Chapter 24 Relativity?751 24.1 Postulates of Relativity?752 24.2 Simultaneity and Ideal Observers?755 24.3 Time Dilation?758 24.4 Length Contraction?761 24.5 Velocities in Different Reference Frames?763 24.6 Relativistic Momentum?765 24.7 Mass and Energy?767 24.8 Relativistic Kinetic Energy?769 Chapter 25 Early Quantum Physics and?the Photon?779 25.1 Quantization?780 25.2 Blackbody Radiation?780 25.3 The Photoelectric Effect?782 25.4 X-Ray Production?787 25.5 Compton Scattering?788 25.6 Spectroscopy and Early Models of the Atom?790 25.7 The Bohr Model of the Hydrogen Atom; Atomic Energy Levels?794 25.8 Pair Annihilation and Pair Production?800 Chapter 26 Quantum Physics?807 26.1 The Wave-Particle Duality?808 26.2 Matter Waves?809 26.3 Electron Microscopes?812 26.4 The Uncertainty Principle?814 26.5 Wave Functions for a Confined Particle?816 26.6 The Hydrogen Atom: Wave Functions and Quantum Numbers?818 26.7 The Exclusion Principle; Electron ?Configurations for Atoms Other than Hydrogen?820 26.8 Electron Energy Levels in a Solid?824 26.9 Lasers?825 26.10 Tunneling?828 Chapter 27 Nuclear Physics?836 27.1 Nuclear Structure?837 27.2 Binding Energy?840 27.3 Radioactivity?844 27.4 Radioactive Decay Rates and?Half-Lives?850 27.5 Biological Effects of Radiation?856 27.6 Induced Nuclear Reactions?861 27.7 Fission?863 27.8 Fusion?867 Chapter 28 Particle Physics?875 28.1 Fundamental Particles?876 28.2 Fundamental Interactions?878 28.3 Unification?881 28.4 Particle Accelerators?883 28.5 Unanswered Questions in Particle Physics?884 Review & Synthesis: Chapters 24–28?887 Appendix A Mathematics Review?A-1 Appendix B Table of Selected Nuclides?B-1 Answers to Questions and?Problems?AP-1 About the Authors Alan Giambattista?grew up in Nutley, New Jersey. Although he started college as a piano performance major, by his junior year at Brigham Young University he decided to pursue a career in physics. He did his graduate studies at Cornell University and has taught introductory college physics ever since. When not found at the computer keyboard working on College Physics, he can often be found at the keyboard of a harpsichord or piano. He has been a soloist with the Cayuga Chamber Orchestra and has given performances of the Bach harpsichord concerti at several regional Bach festivals. He met his wife Marion in a singing group. They live in an 1824 parsonage built for an abolitionist minister, which is now surrounded by an organic dairy farm. Besides making music and taking care of the house, cats, gardens, and fruit trees, they love to travel together, especially in Italy. Betty McCarthy Richardson?was born and grew up in Marblehead, Massachusetts, and tried to avoid taking any science classes after eighth grade but managed to avoid only ninth grade science. After discovering that physics explains how things work, she decided to become a physicist. She attended Wellesley College and did graduate work at Duke University. While at Duke, Betty met and married fellow graduate student Bob Richardson and had two daughters, Jennifer and Pamela. Betty began teaching physics at Cornell in 1977 with Physics 101/102, an algebra-based course with all teaching done one-on-one in a learning center. From her own early experience of math and science avoidance, Betty has empathy with students who are apprehensive about learning physics. Betty’s hobbies include collecting old children’s books, reading, enjoying music, travel, and dining with royalty. A highlight for Betty during the Nobel Prize festivities in 1996 was being escorted to dinner on the arm of King Carl XVI Gustav of Sweden. Currently she is spending spare time enjoying grandsons Jasper (the 1-m child in Chapter 1), Dashiell and Oliver (the twins of Chapter 12), and Quintin, the newest arrival. Robert C. Richardson?was born in Washington, D.C., attended Virginia Polytechnic Institute, spent time in the United States Army, and then returned to graduate school in physics at Duke University where his thesis work involved NMR studies of solid helium-3. In the fall of 1966 Bob began work at Cornell University in the laboratory of David M. Lee. Their research goal was to observe the nuclear magnetic phase transition in solid 3He that could be predicted from Richardson’s thesis work with Professor Horst Meyer at Duke. In collaboration with graduate student Douglas D. Osheroff, they worked on cooling techniques and NMR instrumentation for studying low-temperature helium liquids and solids. In the fall of 1971, they made the accidental discovery that liquid 3He undergoes a pairing transition similar to that of superconductors. The three were awarded the Nobel Prize for that work in 1996. Bob is currently the Vice Provost for Research, emeritus, and the F. R. Newman Professor of Physics at Cornell. In his spare time he enjoys gardening, photography, and spending time with the grandsons. Dedication For Marion Alan In memory of our daughter Pamela, and for Quintin, Oliver, Dashiell, Jasper, Jennifer, and Jim Merlis Bob and Betty Acknowledgments We are grateful to the faculty, staff, and students at Cornell University, who helped us in a myriad of ways. We especially thank our friend and colleague Bob Lieberman who shepherded us through the process as our literary agent and who inspired us as an exemplary physics teacher. Donald F. Holcomb, Persis Drell, Peter Lepage, and Phil Krasicky read portions of the manuscript and provided us with many helpful suggestions. Raphael Littauer contributed many innovative ideas and served as a model of a highly creative, energetic teacher. We are indebted to Tomás Arias, David G. Cassel, Edith Cassel, Glenn Fletcher, Chris Henley, and Leaf Turner for many helpful discussions while they taught Physics 1101–1102 using the third edition. We thank our enthusiastic and capable teaching assistants and, above all, the students in Physics 1101–1102, who patiently taught us how to teach physics. We are grateful for the guidance and enthusiasm of Mary Hurley, Debra Hash, Pete Massar, and Eve Lipton, our editors at McGraw-Hill, whose tireless efforts were invaluable in bringing this project to fruition. Our thanks to Linda Davoli for meticulous copyediting enlivened by a great sense of humor. We also thank Danny Meldung for helping us find so many excellent photos for the book. We are grateful to Sandy Wille, our production manager; her steady hand at the tiller helped ensure the high quality of this publication. We would like to thank the entire team of talented professionals assembled by McGraw-Hill to publish this book, including Carrie Burger, Jodi Banowetz, Shannon Cox, Laura Fuller, David Hash, Sherry Padden, Mary Powers, Mary Jane Lampe, Michael Lange, Lisa Nicks, Thomas Timp, Dan Wallace, and many others whose hard work has contributed to making the book a reality. We are grateful to Kurt Norlin and Bill Fellers for accuracy-checking the manuscript, writing solutions to the end-of-chapter problems, and for many helpful suggestions. Our thanks to Michael Famiano, Todd Pedlar, John Vasut, Janet Scheel, Warren Zipfel, Rebecca Williams, and Mike Nichols for contributing some of the medical and biological applications; to Nick Taylor and Mike Strauss for contributing to the end-of-chapter and Review & Synthesis problems; and to Nick Taylor for writing answers to the Conceptual Questions. From Alan: Above all, I am deeply grateful to my family. Marion, Katie, Charlotte, Julia, and Denisha, without your love, support, encouragement, and patience, this book could never have been written. From Bob and Betty: We thank our daughter Pamela’s classmates and friends at Cornell and in the Vanderbilt Master’s in Nursing program who were an early inspiration for the book, and we thank Dr. Philip Massey who was very special to Pamela and is dear to us. We thank our friends at blur, Alex, Damon, Dave, and Graham, who love physics and are inspiring young people of Europe to explore the wonders of physics through their work with the European Space Agency’s Mars mission. Finally we thank our daughter Jennifer, our grandsons Jasper, Dashiell, Oliver, and Quintin, and son-in-law Jim who endured our protracted hours of distraction while this book was being written. REVIEWERS, CLASS TESTERS, AND ADVISORS This text reflects an extensive effort to evaluate the needs of college physics instructors and students, to learn how well we met those needs, and to make improvements where we fell short. We gathered information from numerous reviews, class tests, and focus groups. The primary stage of our research began with commissioning reviews from instructors across the United States and Canada. We asked them to submit suggestions for improvement on areas such as content, organization, illustrations, and ancillaries. The detailed comments of these reviewers constituted the basis for the revision plan. We then recruited three groups of professors to help guide the updated content. A group of professors who use electronic media and online homework in their classes advised us about updates to the ConnectPlus website. Professors who use the latest research in physics education in their courses helped us develop the online workbook and other supplemental materials. Finally, Professors Michael Famiano of Western Michigan University, Todd Pedlar of Luther College, and John Vasut of Baylor University suggested new ways to incorporate applications to biology and medicine throughout the text. Considering the sum of these opinions, this text now embodies the collective knowledge, insight, and experience of hundreds of college physics instructors. Their influence can be seen in everything from the content, accuracy, and organization of the text to the quality of the illustrations. We are grateful to the following instructors for their thoughtful comments and advice: REVIEWERS AND CONTRIBUTORS FOR THE FOURTH EDITION Rhett Allain?Southeastern Louisiana University Bijaya Aryal?Lake Superior State University Raymond Benge?Tarrant County College George Bissinger?East Carolina University Ken Bolland?The Ohio State University Catalina Boudreaux?The University of Texas–San Antonio Mike Broyles?Collin College Paul Champion?Northeastern University Michael Crescimanno?Youngstown State University Donald Driscoll?Kent State University–Ashtabula John Farley?The University of Nevada–Las Vegas Jerry Feldman?The George Washington University Margaret Geppert?Harper College Athula Herat?Slippery Rock University Derrick Hilger?Duquesne University Klaus Honscheild?The Ohio State University Robert Klie?The University of Illinois–Chicago Rabindra Mohapatra?The University of Maryland–College Park Michael Pravica?The University of Nevada–Las Vegas Gordon Ramsey?Loyola University–Chicago Steven Rehse?Wayne State University Alvin Saperstein?Wayne State University Ben Shaevitz?Slippery Rock University Donna Stokes?The University of Houston Michael Thackston?Southern Polytechnic State University Donald Whitney?Hampton University Yumei Wu?Baylor University Zhixian Zhou?Wayne State University REVIEWERS, CONTRIBUTORS, AND FOCUS GROUP ATTENDEES FOR PAST EDITIONS David Aaron?South Dakota State University Bruce Ackerson?Oklahoma State University Iftikhar Ahmad?Louisiana State University–Baton Rouge Peter Anderson?Oakland Community College Karamjeet Arya?San Jose State University Charles Bacon?Ferris State University Becky Baker?Missouri State University David Bannon?Oregon State University Natalie Batalha?San Jose State University David Baxter?Indiana University Philip Best?University of Connecticut–Storrs George Bissinger?East Carolina University Julio Blanco?California State University, Northridge Werner Boeglin?Florida International University–Miami Thomas K. Bolland?The Ohio State University Richard Bone?Florida International University Arthur Braundmeier, Jr.?Southern Illinois University–Edwardsville Hauke Busch?Augusta State University David Carleton?Missouri State University Soumitra Chattopadhyay?Georgia Highlands College Lee Chow?University of Central Florida Rambis Chu?Texas Southern University Francis Cobbina?Columbus State Community College John Cockman?Appalachian State University Teman Cooke?Georgia Perimeter College Andrew Cornelius?University of Nevada–Las Vegas Carl Covatto?Arizona State University Jack Cuthbert?Holmes Community College Orville Day?East Carolina University Keith Dienes?University of Arizona Russell Doescher?Texas State University–San Marcos Gregory Dolise?Harrisburg Area Community College–Harrisburg Aaron Dominguez?University of Nebraska–Lincoln James Eickemeyer?Cuesta College Steven Ellis?University of Kentucky–Lexington Abu Fasihuddin?University of Connecticut–Storrs Gerald Feldman?George Washington University Frank Ferrone?Drexel University John Fons?University of Wisconsin–Rock County Lyle Ford?University of Wisconsin–Eau Claire Gregory Francis?Montana State University Carl Frederickson?University of Central Arkansas David Gerdes?University of Michigan Jim Goff?Pima Community College–West Omar Guerrero?University of Delaware Gemunu Gunaratne?University of Houston Robert Hagood?Washtenaw Community College Ajawad Haija?Indiana University of Pennsylvania Hussein Hamdeh?Wichita State University James Heath?Austin Community College Paul Heckert?Western Carolina University Thomas Hemmick?Stony Brook University Gerald Hite?Texas A&M University–Galveston James Ho?Wichita State University Laurent Hodges?Iowa State University William Hollerman?University of Louisiana–Lafayette Klaus Honscheid?The Ohio State University Chuck Hughes?University of Central Oklahoma Yong Suk Joe?Ball State University Linda Jones?College of Charleston Nikolaos Kalogeropoulos?Borough of Manhattan, Community College/CUNY Daniel Kennefick?University of Arkansas Raman Kolluri?Camden County College Dorina Kosztin?University of Missouri–Columbia Liubov Kreminska?Truman State University Allen Landers?Auburn University Eric Lane?University of Tennessee at Chattanooga Mary Lu Larsen?Towson University Kwong Lau?University of Houston Paul Lee?California State University–Northridge Geoff Lenters?Grand Valley State University Alfred Leung?California State University–Long Beach Pui-Tak Leung?Portland State University Jon Levin?University of Tennessee, Knoxville Mark Lucas?Ohio State University Hong Luo?University at Buffalo Lisa Madewell?University of Wisconsin–Superior Rizwan Mahmood?Slippery Rock University George Marion?Texas State University–San Marcos Pete Markowitz?Florida International University Perry Mason?Lubbock Christian University David Mast?University of Cincinnati Lorin Swint Matthews?Baylor University Mark Mattson?James Madison University Richard Matzner?University of Texas Dan Mazilu?Virginia Polytechnic Institute & State University Joseph McCullough?Cabrillo College Rahul Mehta?University of Central Arkansas Nathan Miller?University of Wisconsin–Eau Claire John Milsom?University of Arizona Kin-Keung Mon?University of Georgia Ted Morishige?University of Central Oklahoma Krishna Mukherjee?Slippery Rock University Hermann Nann?Indiana University Meredith Newby?Clemson University Galen Pickett?California State University–Long Beach Christopher Pilot?Maine Maritime Academy Amy Pope?Clemson University Scott Pratt?Michigan State University Michael Pravica?University of Nevada–Las Vegas Roger Pynn?Indiana University Oren Quist?South Dakota State University W. Steve Quon?Ventura College Natarajan Ravi?Spelman College Michael Roth?University of Northern Iowa Alberto Sadun?University of Colorado–Denver G. Mackay Salley?Wofford College Phyllis Salmons?Embry Riddle Aeronautical University Jyotsna Sau?Delaware Technical & Community College Douglas Sherman?San Jose State University Natalia Sidorovskaia?University of Louisiana–Lafayette Bjoern Siepel?Portland State University Joseph Slawny?Virginia Polytechnic Institute & State University Clark Snelgrove?Virginia Polytechnic Institute & State University John Stanford?Georgia Perimeter College Michael Strauss?University of Oklahoma Elizabeth Stoddard?University of Missouri–Kansas City Donna Stokes?University of Houston Colin Terry?Ventura College Cheng Ting?Houston Community College–Southeast Bruno Ullrich?Bowling Green State University Gautam Vemuri?IUPUI Melissa Vigil?Marquette University Judy Vondruska?South Dakota State University Carlos Wexler?University of Missouri–Columbia Joe Whitehead?University of Southern Mississippi Daniel Whitmire?University of Louisiana–Lafayette Craig Wiegert?University of Georgia Arthur Wiggins?Oakland Community College Suzanne Willis?Northern Illinois University Weldon Wilson?University of Central Oklahoma Scott Wissink?Indiana University Sanichiro Yoshida?Southeastern Louisiana University David Young?Louisiana State University Richard Zajac?Kansas State University–Salina Steven Zides?Wofford College We are also grateful to our international reviewers for their ?comments and suggestions: Goh Hock Leong?National Junior College–Singapore Mohammed Saber Musazay?King Fahd University of Petroleum and Minerals