ADVANCED INQUIRY INTO PHYSICS Professor: Leslie J Atkins ljatkins@csuchico.edu http://phys.csuchico.edu/~ljatkins/ PHYS 342 Catalog Description: Prior completion of GEOS 141 or PHYS 202A/B or PHYS 204A/B or PHYS 100. This course builds on concepts developed in the introductory physics course with greater mathematical and representational sophistication. Topics addressed include kinematics, electrostatics and electrodynamics, simple machines, and wave phenomena. Required for Natural Sciences majors, elective for General Physics majors. OFFICE: Holt 148 OFFICE HOURS: Monday, Wednesday, Friday, 10 - 12. COURSE DESCRIPTION: This course builds on concepts developed in the introductory physics course in greater mathematical and representational sophistication. There is a significant emphasis on participation in and reflection on scientific inquiry. Topics addressed include kinematics, electrostatics and electrodynamics, simple machines, and wave phenomena. MATERIALS: You will need a notebook (three-ring binder or spiral). You should purchase Physics: The Human Adventure by Holton & Brush - an outstanding book that can be bought online (used) for around $20. If instead of purchasing you would like to borrow a copy from me, please let me know and I can likely loan you one. ABOUT THIS COURSE: In this course you will be developing scientific ideas and theories in the same ways that scientists construct ideas and develop theories: by asking questions, constructing models, designing tests of those models, engaging in debates, writing up your findings, and critiquing one another’s work. In addition, we will examine the history of scientific methodologies and the development of scientific ideas to better understand methods of inquiry in physics. It is assumed that all students will have a background in introductory physical science, but you will be asked to question the ideas you have learned, reinterpret or even dismiss some of those ideas, and justify, represent, and understand those ideas in increasingly sophisticated ways. Much of this work will happen in small research teams with frequent discussions of your findings and ideas. While a central goal of the course is to learn how to do science, including blind alleyways and dead ends, I expect that you will learn a great deal of accurate science, and you will be expected to understand the scientific ideas that are developed in the course. Because the nature of the course relies on active participation by all students, attendance is required and our expectation is that you will be on time, free from distractions (no cell phones, internet, or other work), stay for the full class period, and come with your homework completed. Bring your research notebook to all class meetings. If you know you will miss class, please make every effort to notify the instructor in advance; email is preferred. All University policies pertain to this course. If you want or need to drop this class, you may do so for any reason during the first 2 weeks of the semester through the Portal and during the 3rd or 4th weeks by submitting a Change of Program (COP) form. After the 4th week, to drop a class, you must have a “serious and compelling reason” as defined by the University or your advisor. (Reasons NOT considered serious and compelling include low grades, failure to attend class, dissatisfaction with the course material or instructor, difficulty of the material, pressure of other classes or extracurricular activities, or lack of motivation.) The Department of Physics and the College of Natural Sciences interpret the “serious and compelling” rule strictly. If at any time you have questions or concerns, or just want to share your ideas and opinions on the course, please drop by office hours or send me an email. I am more than happy to talk through these concerns and questions with you. TOPIC OF INQUIRY: The particular topic of inquiry changes from semester to semester. This year I intend to focus on energy - a notoriously difficult idea in physics and one that, even after students (and physicists) learn about energy, they find difficult to explain. What is energy? Why do we believe that it exists - or do we? How is it different from other ideas in physics, like force, momentum, entropy, or work? Through discussions and models of energy, I expect we will touch on a range of physics topics: machines, waves, heat, electricity, etc. However, the ultimate direction we pursue will arise from class discussions, questions and interests. PARTS OF THE COURSE: The two components of the course - lab and lecture - are completely interwoven. While most of our time in lab will be spent in small groups and discussions, it is these discussions and investigations that will inform and be informed by lecture. Lab: As in scientific research communities, our class will have frequent discussions and debates regarding scientific ideas. It is expected that you will participate actively in these discussions. We understand that different students have different styles of participation: some think out loud and share ideas as they spring to mind; others prefer to listen and think things through, taking notes and speaking in small groups as opposed to whole-class. Regardless, you are expected to listen carefully to the ideas that are being presented; when you do not understand an idea, you should speak up; you should take notes on the ideas you hear, keeping these in your research notebook; and you should share the ideas that you have. As ideas and models are generated, we will want to examine how these ideas are supported or refuted by observation and experiment. Much of our time in lab will be spent in small research teams where ideas and conjectures from large discussions will be put to the test. In these groups, you are expected to participate and share responsibility for equipment and investigations, record your observations and ideas in your own research notebook, and prepare reports to share with the whole class. Unlike a traditional science classroom (and more like a research lab), these experiments might be ill-defined, without clear steps and procedures; your group will need to spend time figuring out how best to design an experiment and develop convincing results. You should keep careful notes in these groups regarding your investigations and your results in your research notebook. Your research team will prepare your findings to present to the whole class and generate future discussions and debates. Lecture: In lecture, there will be opportunities to pause and reflect on our activities and compare these to the ways in which scientists have answered these questions throughout history. There will be readings and homework assignments related to this history, and we will address how our own activities do (or don’t) replicate that history. GRADING SCALE: Lab notebooks (15%), homework (weekly) (40%), and papers/projects (3 a semester) (45%) comprise the graded portions of the class. Your final grade will be calculated as a percentage of the total available points. In addition, missing class will deduct points from the total and can significantly affect your grade. You have 2 “free” absences, for each absence after that, your grade will drop by 3% unless you have a compelling reason (family emergencies, sickness, job interviews, etc.). “Absent” means missing class OR being in class but working on other coursework. Usual cut-off for a given grade: 92 % A 90% A88 % B+ 82 % B 80 % B78 % C+ 72 % C 70 % C68 % D+ 62 % D <62% F COURSE SCHEDULE: Please note-- the course schedule is subject to (likely to) change: we may find that we want to spend more time on an investigation, or wrap up an experiment earlier than anticipated. Changes will be noted on the course webpage. First 5 weeks: Defining and representing energy Second 5 weeks: Relating energy and forces Third 5 weeks: Applications to novel scenarios (biology, geology, circuitry, etc.)