Physics 123B (Winter 2008)

Waves

Course Information
last update 20 December 2007
Instructors:  Prof. Marjorie Olmstead (Lecture) 
Prof. Peter Shaffer (Tutorials) 
Prof. Toby Burnett (Laboratory) 

Lectures: MWF 10:30 - 11:20  A118 Physics-Astronomy Bldg. 
Tutorials: Attendance is mandatory; locations and times of individual sections are listed in the Time Schedule. You MUST be present at the first tutorial meeting or you may be dropped from the course.  Tutorial homework will be assigned and collected in your individual tutorial section.  Pretest completion and participation in tutorial both count towards the tutorial portion of your grade.  About 1/4 of each midterm and 1/3 of the final exam will be directly related to tutorial.
Laboratory: You must register for a section of 123Z as well as 123B.  Attendance in mandatory; locations and times of individual  sections are listed in the Time Schedule. You MUST be present at the first laboratory meeting or you may be dropped from this course.  If you complete fewer than six labs during the quarter, and do not make up the work, your grade for the entire course will be 0.0!  Completing only six or seven of the eight labs will reduce your grade significantly.  In addition to graded lab reports, there will be lab-related questions on at least one midterm plus the final exam.
Course Elements:
The various elements of the course (lecture, tutorial, laboratory, homework, exams, etc.) are designed to meet different needs of students in this course, who come from many backgrounds, learn in many different ways, and have many different learning goals.  The purpose behind each element and their interrelationships are described here.
Access to the course GoPost (chat room), tutorial pretests, and lecture homework (WebAssign) requires a UWNetID, and is limited to students enrolled in Physics 123B this quarter.  If you are making up an incomplete, please contact Prof. Olmstead to be added to the list of UWNetID's associated with this class.
Office Hours: Prof. Marjorie Olmstead (Lecture) 
ph122mo@u.washington.edu 
OR olmstd@u.washington.edu
Study Center (AM018):
   Monday after class:  11:30 - 12:00
   Wednesday before class:  9:45-10:15
OR in PAB B433
   Tuesday 9:30-10:00 am OR by appt.
Prof. Peter Shaffer (Tutorials) 
shaffer@phys.washington.edu
C218 Physics-Astronomy Bldg. 
..543-6705 by appointment 
Prof. Toby Burnett (Laboratory) tburnett@u.washington.edu  B201 Physics-Astromony Bldg.
--543-8963 by appointment
You are strongly encouraged to come to office hours and to utilize the Study Center.
Teaching assistants will be available weekdays from 9:30-4:30 for consultation in the Physics Study Center located in Room AM018. (To reach the Physics Study Center, go down the stairs that circle around the Foucault pendulum and proceed toward the end of the hall.)   Students are encouraged to gather and work cooperatively in small groups in the Physics Study Center.  Prof. Olmstead will hold her scheduled office hours there.  Note that with 250 students in Physics 123, and over 1000 students in other sections of 121, 122, 114, 115, and 116, it is not possible to give extensive one-on-one tutoring in the Study Center.  Also, please be aware that the particular TA on duty at any specific hour may not have taught 123 recently, and that faculty teaching 12x or 11x will give first priority to their own students.

The Lecturer in charge of the Study Center is Daryl Pedigo.  Please let him know if TA's are not there during their scheduled times.
Pretests: There will be weekly short pretests administered HERE on the web. These are intended to start you thinking about the concepts that will be addressed in tutorial later in the week, and must be completed between lecture Friday and lecture Monday. Pretests will NOT BE GRADED or handed back. Completion of these tests will, however, be a factor in determining your final grade. 
Textbooks: Physics for Scientists and Engineers, by R. D. Knight. 
Tutorials in Introductory Physics, McDermott, Shaffer, et al
The Lab Manual is available at the University Bookstore. You should purchase the lab manual BEFORE your first laboratory session. 
Students are expected to read the relevant sections in the book BEFORE class.
Reading assignments are listed on the Syllabus.
Homework: 1) Lecture HW will be assigned each week. It will be posted, administered and turned in on the web using the WebAssign System. This is the first quarter for physics to use WebAssign, so please be patient with any glitches that may arise.  Unless otherwise announced, homework will be due at 11:59 pm  Wednesdays.  You may receive 70% credit until 11:59 pm Thursday.  Each student's lowest (percentage) homework score will be dropped.  Note that WebAssign will list the due date as Thursday 11:59 pm, but it will only give you 70% credit for the last 24 hours before the due date.

2) Tutorial HW will be assigned and collected in tutorial sessions.  One problem from each assignment will be graded in detail, and will contribute to your score for tutorials.


Computers are available in the Physics Study Center from 8:30 a.m.-5:20 p.m. each day and at various other locations around campus. 
Exams: There will be three 50-minute midterms and a two-hour final. 

Midterms: Currently scheduled for In Class
Friday, January 25; Friday, February 15; Friday March 7
.

Final Exam: 8:30-10:20 am  Monday, March 17

The exams will include both multiple choice and free-response questions. Approximately one quarter to one half of each exam will be based on material emphasized in the tutorials and in the laboratory. The midterm exams will primarily cover material from the few weeks prior to the week of the exam, but may include earlier material as well. The final examination will be comprehensive. 

All exams will be closed book with one 8.5"x11" sheet of notes allowed.  Calculators are permitted. Laptop computers are not permitted, and the use of the text-storage capability now available on many calculators is not permitted. Cell phones and text messaging are also not permitted.  Exams are to be your own work; you are not permitted to collaborate with any other person.  The Physics department reserves the right to ask for valid identification from any student during examinations. The lowest midterm score for each student will be dropped. A grade of 0.0 will be assigned to students who miss the final examination or two midterms.

There will be NO make-up exams. Students with outside professional, service, or career commitments (i.e. military service, ROTC, professional conference presentation, NCAA sports, etc.) conflicting with the exam dates must contact the instructor early in the quarter to establish alternate examination procedures.  Students who miss an exam without making prior arrangements with the lecture instructor will drop that exam score.  If you are ill with a contagious disease on the day of an exam, please contact the professor by phone or email BEFORE the exam (please do NOT bring your disease-causing microbes to her office or the classroom!).

Students with special needs identified by DSS should contact the professor early in the quarter to arrange accommodation. 

Seats will  be assigned for exams.  Please check Tycho or WebAssign for seat assignments before the each midterm and the final.

Note that a "solid citizen" performance on an exam is typically in the 60-70% range -- students who can get about 80% of the points on about 80% of the material are doing OK (around a B).

If you wish your exams to be returned as part of a stack of tests in class, you must check the appropriate box on the exam or in the class enrollment survey.  Otherwise, you will need to present a photoID to Helen Gribble in C136 to reclaim your exam papers.
Regrades:  If you believe that the points on the examination were incorrectly totaled or if there is a gross error in the grading, you may return an exam for regrading. To do so, you must resubmit the examination no later than at the beginning of the lecture following the one in which the exams are returned. You must write a brief note on the front page or attached to the front page of the exam explaining the possible error in the grading.  The entire examination should be returned.  Do not make any changes or marks on the other pages of the examination.
NOTE: Portions of each examination are photocopied. You should be aware that any request for a regrade may result in a regrading of the entire exam. Therefore your total score may decrease.
Time Commitment:
Each quarter, the UW Office of Educational Assessment conducts surveys of undergraduate courses. For many years, the PHYS121-2-3 courses have been among the courses reportedly requiring the most hours of work per week outside of class. A typical course will show a span from 5 hours per week to 20 hours of study per week outside of class, probably including some time spent on lab.  Many courses claim to require at least two hours outside of class for each hour in class; PHYS123 delivers.  If you want a good return on the investment of 7 hours per week you are already committed to in class, tutorial, and laboratory, you should invest at least that much time outside of formal class meetings working on the course .
Math Requirements:
MATH 126/129/134 (Calculus III) is a co-requisite for this class.  The key concepts from Math 126 that we will use include simple Fourier series concepts and partial derivatives.  We will also do a lot of trigonometry, including adding and multiplying sines and cosines.
Cheating: Please don't even think about cheating.  It is a real pain for the professor to have to write letters to the dean to report cheating, but she has done it before and will do it again.  Your decision whether or not to pursue a technical career should not be hastened by the abnormally low grade obtained if you are caught or postponed by the uncharacteristically high grade you might obtain if you are not.
Feedback: Students are encouraged to give Prof. Olmstead weekly feedback through the weekly questionaires.  For most weeks they contain two basic questions:  what do you still need to hear about from last week's lecture, and what is most confusing in the book for next week's lecture.  They are available from the end of class Friday until 9:00 am Monday.  These will be read by Prof. Olmstead before each Monday's lecture and she will adjust her lecture accordingly.  Students filling out these Questionaires will receive the equivalent of 1 correct "clicker question" for each one filled out responsibly.  (note: simply writing "nothing" or "everything" will not yield credit).
Course grade: Concurrent enrollment in PHYS123 lecture, laboratory and tutorial is mandatory; students will receive a combined grade for lecture, tutorial and lab. The final course grade is based on the best two out of three midterms (40%), the final exam (25%), lecture HW (10%), tutorial participation and HW (10%), and Lab (15%). The lecture instructor reserves the right to adjust individual final grades by no more than 0.2 grade points (about 5% out of 4.0 possible) based on participation in the lecture class meetings and other work related to the lecture (e.g., Clickers, and Weekly Feedback Questionaires). See 12X Committee Grading Policy for more details.

Be aware that many technical majors have a minimum grade requirement for a core of lower-division technical classes including the PHYS121-2-3 sequence. Therefore, each student is strongly urged to discuss departmental entry requirements with their undergraduate or departmental advisors, and plan their course loads accordingly.

A grade of 2.0 in Physics 123 is required to move on to Physics 225 and 227; higher grades are recommended (though not currently required) for pursuit of a physics major.  This threshold may be raised to 2.3 in the near future.  Typically, the average in 123 is 3.0 with about 10% of the class receiving 3.9 or 4.0.  This, of course, fluctuates depending on individual commitment and performance.

It is your responsibility to check your grades on the Tycho and WebAssign system every week or two and report any problems to both the lecture instructor and the relevant TAs (and/or lab/tutorial faculty) immediately. Lab, tutorial and exam grades should be recorded for your review within one week from the date that papers are submitted for grading.  WebAssign homework grades should be recorded within 24 hours of submission.  Clicker points should be recorded every midterm.  Grading problems that are reported in a timely fashion will be investigated and, if action is warranted, corrected.  The lecture, lab and tutorial instructors may choose to ignore grading complaints that are not reported in a timely fashion.

A student who is passing the course but has extenuating circumstances preventing completion of the course (e.g., a medical emergency), may apply to the professor for a grade of incomplete BEFORE the final exam.  You should be aware that this is the last quarter for the forseeable future that UW will be using the text by Knight -- future 123 classes will use the text by Tipler and cover slightly different material.  This may increase the work required to make up an incomplete.

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