Physics 9 page 1/6 Physics 9, Introductory Physics II Spring 2012 - Course Description Instructor: Dr. Derrick Kiley Office: AOB 177; Office Phone 209 228-3077 E-mail Address: dkiley@ucmerced.edu. Course Webpage: http://faculty.ucmerced.edu/dkiley/physics9spring2012.html. Class meets: 10:30 - 11:20, Monday, Wednesday, & Friday in CB 105. Office hours: Wednesdays 9:20 – 10:20, and Fridays 11:20 – 12:20 in AOB 177. Teaching Assistants: Jose Jussi Amaral, jamaral2@ucmerced.edu Luis Martinez, lmartinez35@ucmerced.edu Xianyu Yang, xyang8@ucmerced.edu TA Office Hours: Jose Jussi Amaral: Tuesdays, 1:00 - 3:00 in SE 371. Luis Martinez: TBA. Xianyu Yang: TBA. Textbook: Physics for Scientists and Engineers: A Strategic Approach with Modern Physics and MasteringPhysics (2nd Edition), by Randall D. Knight. There is a supplementary student workbook that is included with the text if you buy it at the campus bookstore. Topics and Outlook: In this course we will be introducing the basic ideas of electricity and magnetism. This is a very large and very interesting subject, covering many aspects of physics. In fact, by the time you finish this course, coupled with what you learned in physics 8, you will have an introductory understanding of almost all of classical physics! (The last major topic in classical physics, thermodynamics, will be covered during your next semester, in Physics 10.) Electricity and magnetism covers far more than simply Coulomb’s law. As we will see, with the three exceptions of gravity, the force responsible for radioactive decay, and that holding the nucleus together, electromagnetism is responsible for everything else in physics! In this course, we will begin with the simple laws of electrostatics, discussing the electric field. We will introduce the concept of electric potential which, far from being a simple mathematical convenience, represents a deeper understanding of the the origins of the electric field. Next, we will discuss the basic circuit elements and learn how to analyze circuit diagrams. From there we will discuss magnetism. As we investigate magnetic phenomena we will see that while a static charge produces only an electric field, moving that charge around creates a magnetic field ! A changing electric field produces a magnetic field, while a changing magnetic field produces an electric field. It is clear, then, that electricity and magnetism are not independent, but rather simply different aspects of the same thing - theelectromagnetic field ! Everything we have discussed can be condensed into four equations, known as the Maxwell Equations, which we will then write down. Things are even more interesting when we realize that light is wiggles and oscillations in the electromagnetic field. Thus, in four very simple equations, Maxwell was able to unify electricity, magnetism, and even light! It will be the topic of this course to tell this story in some detail. 1 Physics 9 page 2/6 - Tentative Syllabus All Dates Approximate! Topic Date Electric Charges and Forces Wednesday January 18 Electric Charges and Forces Friday January 20 The Electric Field Monday January 23 The Electric Field Wednesday January 25 The Electric Field Friday January 27 Gauss’s Law Monday January 30 Gauss’s Law Wednesday February 1 Gauss’s Law Friday February 3 The Electric Potential Monday February 6 The Electric Potential February 8 Potential and Field Friday February 10 Potential and Field Monday February 13 Current and Resistance Wednesday February 15 Current and Resistance Friday February 17 President’s Day - NO SCHOOL! Monday February 20 Fundamentals of Circuits Wednesday February 22 Fundamentals of Circuits Friday February 24 Midterm Review Monday February 27 MIDTERM 1!!! Wednesday February 29 The Magnetic Field Friday March 2 The Magnetic Field Monday March 5 The Magnetic Field Wednesday March 7 Electromagnetic Induction Friday March 9 Electromagnetic Induction Monday March 12 AC Circuits Wednesday March 14 AC Circuits Friday March 16 Electromagnetic Fields and Waves Monday March 19 Electromagnetic Fields and Waves Wednesday March 21 Electromagnetic Fields and Waves Friday March 23 Spring Break - NO SCHOOL! Monday March 26 Spring Break - NO SCHOOL! Wednesday March 28 Spring Break - NO SCHOOL! Friday March 30 Midterm Review Monday April 2 MIDTERM 2!!! Wednesday April 4 Traveling Waves Friday April 6 2 Sections in Text 26.1 – 26.3 26.4 – 26.5 27.1 – 27.2 27.3 – 27.4 27.5 – 27.7 28.1 – 28.2 28.3 – 28.4 28.5 – 28.6 29.1 – 29.3 29.4 – 29.7 30.1 – 30.3 30.4 – 30.7 31.1 – 31.3 31.3 – 31.5 32.1 – 32.5 32.5 – 32.9 33.1 – 33.3 33.4 – 33.5 33.7 – 33.10 34.1 – 34.5 34.6 – 34.10 36.1 – 36.4 36.5 – 36.6 35.1 – 35.2 35.3 – 35.5 35.3 – 35.5 20.1 – 20.4 Physics 9 page 3/6 - Tentative Syllabus All Dates Approximate! Topic Date Sections in Text Traveling Waves Monday April 9 20.4 – 20.7 Superposition Wednesday April 11 21.1 – 21.4 Superposition Friday April 13 21.4 – 21.7 Wave Optics Monday April 16 22.1 – 22.3 Wave Optics Wednesday April 18 22.3 – 22.6 Ray Optics Friday April 20 23.1 – 23.3 Ray Optics Monday April 23 23.4 – 23.6 Modern Optics and Matter Waves Wednesday April 25 25.1 – 25.3 Modern Optics and Matter Waves Friday April 27 25.4 – 25.5 Special Lecture Monday April 30 Special Lecture Wednesday May 2 Final Review Friday May 4 FINAL EXAM!!!! Saturday May 5 8:00 – 11:00 Grading: The grading will be based on the final (20%), two midterms (20% each), 14 discussion quizzes (20% total), one writing assignment (10%), and the discussion/lab sessions (10% total). Discussion Quizzes Instead of homework, there will be 14 quizzes, each held during discussion on Tuesdays. We will do our best to give plenty of partial credit, so always attempt the problems, even if you don’t finish them. Because the quiz solutions will be posted the same day, no make-up quizzes will be allowed ! Writing Assignment Ten percent of your grade will be based on a 1 1/2 page paper (not counting your name, title of the paper or bibliography, and must be size 12 font, one inch margins, etc.) on a physics topic of your choice. The paper must be written in your own words, and can be based on a journal article, seminar, etc. The paper will be due in class on Friday, April 20. Exams Midterm: There will be two midterms, tentatively scheduled for Wednesday, February 29th, and Wednesday, April 4th. The midterms will be cumulative, and will cover the material covered up to that point (although later material will likely be emphasized). Final: Saturday, May 5: 8:00 – 11:00. The final exam will be comprehensive. Both exams are closed book. If some complicated formulas are needed (such as a nasty integral) they will be provided, as will any required numerical values, etc. You may use calculators. You should bring your student ID along so that your identity may be verified, if necessary. 3 Physics 9 page 4/6 Discussion/Lab Sessions Part of the course includes a discussion/laboratory (DL) session, led by Jose Jussi Amaral, Luis Martinez, and Xianyu Yang. These sessions meet twice a week and will contribute a large amount to the course, so it is important that you attend these. During certain sessions you will perform experiments, while during others you will work problems. These DL meetings contribute 10% to your grade, and are manditory. The TAs are in charge of the DLs! • 21D T 8:00 a.m. – 9:50 a.m. COB 266, Jose Jussi Amaral • 21L R 8:00 a.m. – 9:50 a.m. SE Building 111, Jose Jussi Amaral • 22D T 10:00 a.m. – 11:50 a.m. COB 266, Jose Jussi Amaral • 22L R 10:00 a.m. – 11:50 a.m. SE Building 111, Jose Jussi Amaral • 23D T 12:00 p.m. – 1:50 p.m. COB 266, Luis Martinez • 23L R 12:00 p.m. – 1:50 p.m. SE Building 111, Luis Martinez • 24D T 2:00 p.m. – 3:50 p.m. COB 266, Luis Martinez • 24L R 2:00 p.m. – 3:50 p.m. SE Building 111, Luis Martinez • 25D T 4:00 p.m. – 5:50 p.m. COB 266, Xianyu Yang • 25L R 4:00 p.m. – 5:50 p.m. SE Building 111, Xianyu Yang • 26D T 6:00 p.m. – 7:50 p.m. COB 266, Xianyu Yang • 26L R 6:00 p.m. – 7:50 p.m. SE Building 111, Xianyu Yang There will be six labs each meeting during your regularly scheduled DL time. The labs will be in the Science and Engineering (SE) Building 111. - Tentative Lab Schedule Topic Date Equipotentials I Week of February 6 Equipotentials II Week of February 13 DC Circuits Week of February 27 Electromagnetism Week of March 12 Oscilloscopes Week of March 19 Diffraction Week of April 23 Optics Week of April 30 Tutoring Services Free drop-in tutoring is available at the Student Advising and Learning Center. You can check out their website at http://learning.ucmerced.edu/ for more information. 4 Physics 9 page 5/6 Learning Objectives for Physics 9 Upon completion of Physics 9, you should understand : • That electric fields are produced by electric charges. • That magnetic fields are produced by electric currents. • The concepts of capacitance, resistance, and inductance in conductors and ultimately in electrical circuits. • That electric and magnetic fields are not distinct phenomena, but are simply different aspects of a single electromagnetic field. • That light is oscillations in the electromagnetic field. • That several waves can interact with each other leading to constructive or destructive interference. • That light bends and travels at a different speed when it passes from one medium to another. • That matter particles also exhibit wavelike properties. Learning Outcomes for Physics 9 Upon completion of Physics 9, you should be able to: • Use Gauss’s Law to calculate the electric field from a static charge distribution. • Use Ampere’s Law to calculate the magnetic field from a steady current distribution. • Evaluate DC and AC circuits. • Calculate induced electric fields from a changing magnetic field. • Calculate induced magnetic fields from a changing electric field. • Use the wave theory of light to calculate observable effects such as diffraction. • Calculate the angle of refraction when light changes the medium of propagation. • Calculate image properties using ray optics techniques. • Calculate the de Broglie wavelength of a particle. 5 Physics 9 page 6/6 Academic integrity Academic integrity is the foundation of an academic community and without it none of the educational or research goals of the university can be achieved. All members of the university community are responsible for its academic integrity. Existing policies forbid cheating on examinations, plagiarism and other forms of academic dishonesty. The current policies for UC Merced are described in the UC Merced Interim Academic Honesty Policy and Adjudication Procedures available from Students First Center, Student Life, Residence Life and College One. Information is available through the Student Judicial Affairs link on the Student Life web page. http://studentlife.ucmerced.edu/. Examples of academic dishonesty include: • Receiving or providing unauthorized assistance on examinations. • Using unauthorized materials during an examination. • Plagiarism - using materials from sources without citations. • Altering an exam and submitting it for re-grading. • Fabricating data or references. • Using false excuses to obtain extensions of time or to skip coursework. The ultimate success of a code of academic conduct depends largely on the degree to which the students fulfill their responsibilities towards academic integrity. These responsibilities include: • Be honest at all times. • Act fairly toward others. For example, do not disrupt or seek an unfair advantage over others by cheating, or by talking or allowing eyes to wander during exams. • Take group as well as individual responsibility for honorable behavior. Collectively, as well as individually, make every effort to prevent and avoid academic misconduct, and report acts of misconduct which you witness. • Do not submit the same work in more than one class. Unless otherwise specified by the instructor, all work submitted to fulfill course requirements must be work done by the student specifically for that course. This means that work submitted for one course cannot be used to satisfy requirements of another course unless the student obtains permission from the instructor. • Unless permitted by the instructor, do not work with others on graded coursework, including in class and take-home tests, papers, or homework assignments. When an instructor specifically informs students that they may collaborate on work required for a course, the extent of the collaboration must not exceed the limits set by the instructor. • Know what plagiarism is and take steps to avoid it. When using the words or ideas of another, even if paraphrased in your own words, you must cite your source. Students who are confused about whether a particular act constitutes plagiarism should consult the instructor who gave the assignment. • Know the rules – ignorance is no defense. Those who violate campus rules regarding academic misconduct are subject to disciplinary sanctions, including suspension and dismissal. 6