Physics 112 Class 41855 Instructor: Robert P. Johnson Office: 323 Nat. Sci. II Phone: 459-2125 Email: rjohnson@ucsc.edu Office hours: M 3:00 4:00, W 12:00 1:00, Th 1:00 2:00, F 2:30 3:30 Lecture: M,W,F 9:30 to 10:40, Thimann Lecture Hall 1 Discussion Sections: A: Tuesdays 4:00 to 5:10 pm in EMS B210 B: Thursdays 5:00 to 6:10 pm in ISB 231 Teaching Assistant: Student Accommodations Peizhi Mai; ISB 288; 459-4106; pemai@ucsc.edu Office hours: 4:00 to 5:00 pm on Wednesdays UC Santa Cruz is committed to creating an academic environment that supports its diverse student body. If you are a student with a disability who requires accommodations to achieve equal access in this course, please submit your Accommodation Authorization Letter from the Disability Resource Center (DRC) to me privately preferably within the first two weeks of the quarter. At that time, I would also like us to discuss ways we can ensure your full participation in the course. I encourage all students who may benefit from learning more about DRC services to contact DRC by phone at 831-459-2089 or by email at drc@ucsc.edu. Distribution of Course Materials The unauthorized sale or distribution of course handouts, exams, homework solutions, exam solutions, or any other course materials posted in ecommons is a violation of campus policies as well as California state law. Violation by distribution to the public may also constitute copyright infringement subject to legal action. Prerequisites I will assume that students have studied basic classical thermodynamics already in their elementary physics course (Physics 5D is a prerequisite), but some of that material will be reviewed in this course. I will also assume some elementary knowledge of probability and statistics (e.g. from Physics 116C, AMS-5, or Math 23A/B), but we will review the essential knowledge in the first few lectures. A basic knowledge of quantum physics is also important, so you should have completed Physics 102, Modern Physics, (or equivalent) or should be concurrently enrolled in it. Textbook and Reading Assignments The textbook for this course is An Introduction to Thermal Physics by Daniel Schroeder. Initially this choice was based partly on good online reviews, but it also got good reviews from my students last year. It is not too lengthy and appears to me not to be difficult to read. A copy should be available in the reserves of the Science and Engineering Library. 1
It is important to read the textbook regularly and carefully, with a first reading completed prior to the corresponding lecture. See the detailed syllabus below for the reading assignments. To encourage you to gain some familiarity with the subject prior to lecture, for most lectures I will post reading quizzes on ecommons that are to be completed in advance of each corresponding lecture. Please do not expect to be allowed to submit them late, as that defeats the purpose. Your quiz with the lowest score will be dropped from grading. Lectures and Class Participation Lecture attendance is expected of all students. However, I will not have time to cover in the lectures everything that you should be studying or should need to know, so proper attention to the reading assignments is necessary in addition to lecture participation. I will generally avoid going much beyond what is in the textbook, since it covers plenty of topics for a 10-week course. This is an unusually large class for an upper-division physics course at UCSC, certainly the largest in my long experience at UCSC. I always welcome questions that interrupt the lecture, but to try to get all students actively engaged during lectures, I have decided to use the i>clicker classroom response system in a manner similar to what we commonly do in introductory physics courses. Participation is mandatory in the sense that it will count for 5% of your course grade. Any of the following may be used to participate in lectures: The original i>clicker i>clicker + i>clicker 2 The mobile application, REEF Polling by i>clicker, which can be used on a smart phone or tablet If you already have an i>clicker remote, then all you have to do is register it at no cost on the Physics 112 ecommons site (you may find that it already is registered because of prior usage at UCSC). Otherwise, either you will need to purchase an i>clicker remote (online or from the Bay Tree bookstore) and register it at no additional cost on the Physics 112 ecommons site, or else use the REEF Polling option with your smart phone or tablet. If you forget to bring your device on a given day you may ask me for a loaner i>clicker for that one lecture. Be aware that using a fellow student s i>clicker in class in addition to your own is considered to be cheating and a violation of the University academic integrity policies. Special instructions for REEF Polling by i>clicker To create a REEF-Polling-by-i>clicker account, visit app.reef-education.com or download the app for ios or Android (e.g. from the Google Play Store). Creating an account automatically starts a free 14-day trial subscription. Please use this trial period to make sure REEF Polling will work for all of your i>clicker classes before purchasing a subscription, as it is not possible to receive a refund after you purchase a subscription. Once you create your REEF Polling account, be sure that you ve added your AIS student ID (the name that appears before @ucsc.edu in your campus email, not your numerical ID) to your profile to complete the registration process. At the end of your trial, should you decide to purchase REEF Polling, you can purchase access to REEF Polling in a variety of subscription lengths using your credit card online or through in-app purchase with 2
your smartphone. The subscription will include an unlimited number of courses. In the system, this course is Physics 112, Thermo and Stat Mech and the Course ID is 41855. Course Web Sites The course web page is http://people.ucsc.edu/~rjohnson/phys112/phy112.htm. You will find there some basic information, this syllabus, and a link to ecommons. I will post all other course material, as well as grades, only on ecommons (https://ecommons.ucsc.edu/library/skin/santa_cruz/home.html). The online quizzes will also be found there. Office Hours and Discussion Sections My office hours are a good time to find me in my office and work with me on the lecture or homework material. I am staggering the times through the week so that hopefully everybody can make it to at least one of my office hours each week. I encourage you to make use of this time, which is dedicated to you. Besides helping you, it also helps me to get to know you and to learn about what questions are issues arising among my students, which is difficult to know in the much less personal lecture environment. Similarly, the TA will also hold office hours. There are two discussions sections scheduled per week, in most cases to be led by the TA. The sessions will be most productive if you come prepared with questions or examples that you would like to work through. Please note that while the TA will answer questions directly related to homework, do not expect him to work out your homework problems for you in detail. Tutoring Resources Learning Support Services at UCSC plans to offer small-group tutoring for this class. The tutor will be Kevin Hambleton (khamblet@ucsc.edu), and all UCSC undergraduates are eligible for one hour of tutoring per week at no cost. You may sign up at https://eop.sa.ucsc.edu/otss/tutorsignup/ beginning Friday, January 8 th. Homework Assignments Be forewarned that the presentation of your homework solutions will count, not just the calculations and results, because the grader needs to be able to review your work. Please work out the problems first on scratch paper and then write out (or type, if you wish) a clear presentation of your solution for us to grade. In general your solutions should include some short English explanations or labels, not just calculations. And whereas we do want to see all of your final calculations, we do not want to see your messy scratch work. While you may collaborate on the homework, you should nevertheless work through each problem completely on your own. In any case, you must turn in your own work. Your work must not be duplicates of that of a classmate. That really is for your own benefit. You will only learn and retain information and skills if you challenge yourself to solve the problem or figure out the answer. Nevertheless, the TA and I are available to steer you to the right course in case you really get stuck. I also do not want you to use Mathematica, Wolfram Alpha, or any other symbolic algebra tool, as a crutch. I do not want to see computer printout of computer-generated algebraic solutions in the homework that you turn in for grading. I also prefer that you use integral tables to work indefinite integrals (unless you work them out yourself). Your homework solutions also should not skip large amounts of algebra and then present a result from a computer program. However, you are welcome to 3
check your work with such tools, or use them to guide you to a solution. And you are welcome and strongly encouraged to use Mathematica, Mathcad, Matlab, Excel or any other such program to do numerical calculations and plot results. While it should go without saying, let me add that copying solutions from Web sites and turning them in as your own work is a violation of University academic integrity policies. While admittedly difficult to enforce, you should be aware that working in such a mode is very unlikely to result in much learning of physics and unlikely to leave you prepared to pass my exams. Exams and Grading There will be two exams. The midterm exam will cover the first four homework assignments (essentially the first four chapters of the textbook). The final exam will be comprehensive. Exams will be closed-book, and I will not allow crib sheets. I will expect you to know from memory the fundamental definitions and mathematical relations of this subject. That amount of memorization should follow naturally from doing normal studying and homework and is crucial for being able to think about and do physics effectively. Furthermore, it is minimal compared with memorization required by many other subjects. I will not expect you to memorize any physical constants or any long, complex equations that result from problem solutions or derivations. Those will be printed on the exam if needed. Course grades will be based on the assignments, quizzes, and exams as follows: Homework: 25% Reading quizzes: 5% (The lowest score will be dropped.) Classroom participation: 5% Midterm exam: 25% Final exam: 40% Detailed Syllabus and Other Resources I will try to adhere closely to the following detailed syllabus, but if any changes are needed I will update the syllabus online throughout the quarter, when necessary. You can see that I intend to follow very closely the existing organization of the textbook. Nevertheless, there are many other textbooks on this subject at about the same level available in the library and elsewhere, which you are welcome to use, especially if you are unhappy with this textbook. For example: Ralph Baierlein, Thermal Physics, QC311.B293, Cambridge University Press, 1999. Blundell and Blundell, Concepts in Thermal Physics, Oxford University Press, 2006. Ashley Carter, Classical and Statistical Thermodynamics, QC311.C39, Prentice-Hall, 2001. F. Reif, Fundamentals of Statistical and Thermal Physics, QC175.R43, McGraw-Hill, 1965. C. Kittel and H. Kroemer, Thermal Physics, QC311.5.K42, W. H. Freeman, 1980. Another excellent reference is Volume 1 of the Feynman Lectures on Physics by Feynman, Leighton, and Sands. It is now available online at http://www.feynmanlectures.info/. 4
Jan 4 Jan 6 Jan 8 Jan 11 Jan 13 Jan 15 Jan 18 Jan 20 Syllabus Date Topic Reading HW Thermal equilibrium and ideal gasses, equipartition 1.2 1.3 Heat and work, heat capacities 1.4 1.6 Two-state system, Einstein solid 2.1 2.2 #1 Jan 22 Jan 25 Jan 27 Jan 29 Feb 1 Feb 3 Feb 5 Feb 8 Feb 10 Feb 12 Feb 15 Feb 17 Feb 19 Feb 22 Feb 24 Feb 26 Feb 29 Mar 2 Mar 4 Mar 7 Mar 9 Mar 11 Mar 15 Mar 17 Large system, multiplicity function Ideal gas, entropy Temperature, entropy and heat Holiday Paramagnetism Mechanical equilibrium and pressure Diffusive equilibrium and chemical potential Heat engines and refrigerators Throttling process (Joule-Thompson) Free energy Gibbs free energy and chemical potential Midterm Exam (through HW #4) Phase transformations Boltzmann factor Average values, equipartition Holiday Maxwell speed distribution, free energy Ideal gasses Gibbs factor, quantum distribution functions Blackbody radiation Debye theory of solids Bose-Einstein condensation Ising Model Ising Model, Monte Carlo simulations Tuesday: Homework #9 is due at 5:00 pm. Thursday: Final Exam from 8:00 11:00 a.m. 2.3 2.4 2.5 2.6 3.1 3.2 #2 3.3 3.4 #3 3.5 3.6 4.1 4.3 4.4 #4 5.1 5.2 5.3 6.1 6.2 6.3 #5 6.4 6.6 6.7 #6 7.1, 7.2 7.3 7.3 #7 7.3 7.4 7.5 #8 7.6 8.2 8.2 #9 5