Class: MTuThF, 1:30-2:20 pm, PAA A102
Office: PAB B478
Office Hours: Th 2:30-3:20 pm, PAA Study Center AM018 and by appointment.
Brandon Lee Wall
Office hours: 9:00 am - 12:00 pm, in PAA Study Center, AM018 and by appointment
Course web page: http://www.phys.washington.edu/~bulgac/114W06/index.html
Lab, Phys 117 information
Epost for Phys 114, Winter 2006
Use Epost to start a discussion group, find buddies to study
etc. I shall only ocasionally check this discussion board.
an anonymous message to the instructor
Unless you sign the message, there is no way for me to know who
the message or the sender's email.
The best thing is to use the link above to my e-mail if you want
me to know who you are, as then your e-mail
address will show up. Several times I tried to to reply to anonymous
e-mails, in which the author sent me an
e-mail address and he/she expected an answer, but the e-mail address
supplied was wrong.
Textbook: James S. Walker, Physics, Prentice Hall
The material in Chapter 1 will not be
discussed in class, but you will be expected to review it yourself. I
suggest that you do that a few times during the quarter, as your
perspective on various topics will evolve in time and so will your
understanding of the material presented in this chapter. In each
chapter I suggest that you solve at least 20-25 problems. Since answers
are provided only for odd-numbered problems, I suggest that you solve a
subset of these problems. For example you may choose to solve the
problems 1, 5, 9, ... 99, 103 in chapter 2 and the problems
1, 3, 5, ... 53, 55 in chapter 3, and so forth. It is important that
you solve problems relevant to all sections of a given chapter.<>
Homework is not required, but it is strongly
that you do it. One cannot
master the material unless one is able to solve
correctly problems. As a matter
of fact this is how you are going to be tested in exams, by solving problems and providing exact numerical answers. Unless you practice by solving problems
the most likely outcome of the exams will be failure. As you already know, unlike many other fields of human inquiry, physics is an exact science.
You must have a computer account for email and work. Your homework will be done on the web using a system called Tycho, developed at the University of Illinois. This system is still under development and so far it has been greatly appreciated by the students using it. There are essentially two things we will use: homework and gradebook.
In the homework portion, every week several
will be posted for you to
solve. As you will discover immediately, there are
two types of problems:
a) Standard Homework Problems have a numerical answer. You will get immediate feedback as to whether the answer supplied is correct or not. In many
problems, you can ask for pre-programmed help. Full credit is given (if done before the deadline) for the correct answer, independent of how many submissions were needed to obtain it. b) Interactive Examples are often somewhat more difficult problems. Help in these problems usually comes in the form of more questions. The hope of the writers is that solution of these problems will lead to better conceptual understanding rather than just
Since some problems unfortunately still have bugs, you might run into the unpleasant situation that you have the correct solution but the computer will not budge and will not accept it. If you are 200 % confident that your solution is correct, send me a detailed e-mail, containing the name of the problem, your numerical input (NB these numbers differ from student to student), describe your approach and write your answers. The first five students who run into such difficulties and send me a correct solution will have their score to that particular problem raised by 50%. Those points will be added to your final homework grade at the end of the course.
Click on the link http://tychosrv.phys.washington.edu/courses/phys114/winter06/
to login to the Tycho sytem and do your graded
instructions on the login page. Your homework, exam and final grades will be posted using the Tycho system as well. The sudent database is updated daily
during the first week of the quarter daily and every two days during the second week. If you experience difficulties logign into the Tycho system please write to Laura Clement firstname.lastname@example.org.
Exams: EXAMS MAY NOT BE TAKEN LATE
THERE WILL BE NO MAKEUPS. If for some reason you miss one of the midterms, the one you missed will be your low grade. Please arrange your vacation schedule so you take the final exam at the proper time.
There will be three one-hour mid-term exams and one final exam. Each hourly exam (from 1:30 pm to 2:20 pm sharp) will consist of multiple-choice questions and these will be machine graded. No partial credit will be given. The exams are closed book, but you will be permitted to have one 8 1/2" x 11" sheet of hand written notes to aid you, no xerox copies or any other copies of any kind. In addition you will only be allowed to have a calculator, an eraser, a #2 pencil and a pen. Scratch paper will be provided. Do not forget to bring a bubble sheet (Standard Answer Sheet). You can get them at the Hub, By George and other places around the campus.
The final exam will cover
the material studied during the quarter. The
problems on the exams will be
chosen from the Tycho homework, the end of the
chapter problems, or they will
be problems created specifically for the exam, but similar to Tycho or
textbook problems. On each hourly exam there will
be approximately 10-12
problems and approximately 20-24 problems on the final exam. You will
be expected to solve
numerically each problem and
choose the correct answer among the 4-5 alternatives
suggested. On a typical
exam the average student will provide correct answers
to about 5-7 problems, with
a standard deviation of approximately 2.
Cheating will be dealt with
Grading will be done on a curve, with the class average being about 2.7. This will vary depending on the performance of the class as a whole. Approximately 10-15 % of the class will receive 4.0, and 0.7 will be the lowest passing grade.
Each hourly exam will count for 25 % of the grade, while the final two-hour exam will count as two one-hour exams for 25 % of the grade. Thus there will be five exam grades, with the final exam grade being counted twice. Your score on each exam will be normalized so that each exam, regardless of the number of questions or the difficulty of the exam, will count the same. This score for each exam will be converted to an exam grade point (2.3, 3.2, etc.). The approximate (it can change slightly!) formula which will be used to compute each grade for each exam is
Your Grade = (Your exam score - Average exam score)/Standard Deviation + 2.7
At the end of the quarter, your lowest examgrade will be dropped and your course grade will be the average of the remaining four examgrades and, if that is the case the extra credit for the homework. The graded homework on Tycho is not required for the grade. However, if you have worked out the assigned problems and obtained the correct answers before the posted deadline you can received up to 0.3 point towards your final grade (on top of the grade based on exam results). 0.3 will be awarded for 100% correct answers.
The instructor reserves the
to modify this grading procedure in any way as long
as no student receives a
grade lower than one calculated by the method
All the mathematics you need to know to be able to take this course is summarized in Appendix A of the textbook. Please review various number notations, solving linear and quadratic algebraic equations and systems of 2-3 linear equations with respectively 2-3 unknowns, plane geometry, areas and volumes and basic trigonometry.
This physics course provides the basis for all
of physics, and
future physics, biophysics, and chemical physics
or topics you may
have to or be willing to explore. The subject matter of PHYS 114 is mechanics, which according to the dictionary means [the] science that deals with energy and forces and their effect on bodies. This definition actually covers just about all of physics! But don't worry, here we will focus on what we can learn about the motion of ordinary-sized objects (for example, bigger than a molecule but smaller than a galaxy) moving at speeds much less than the speed of light. Objects outside these limits require quantum mechanics and relativity, which you will hear about if and when you take PHYS 116.
Specifically, we are going to learn about Newtonian mechanics, which as every schoolchild knows, relates the falling of an apple to the motion of a planet in its orbit. Isaac Newton's triumph in bringing the heavens down to earth came when he was 24 years old, and he had to invent calculus to finish the job. Our task will be much easier! We will scrupulously avoid any whiff of math beyond the high school level, although by the time we are finished you should be able to understand what calculus is all about and appreciate its power.
Most 114 students are not planning to major in a
physics or chemistry, or an engineering field. But
whether your interests are in
the life sciences, social sciences, arts, or humanities, the content of PHYS 114 is fundamental for scientific literacy, a commodity which seems to be getting
in shorter supply even as our world gets more and more technological.
In class, you will learn a few facts about
and how to make a few
calculations that someday might be handy contesting
a speeding ticket, but
mostly we will focus on the process of thinking used in science. Sometimes this is called the scientific method. Really, it is an approach to analyzing
information that has been found to be astonishingly successful - so much so, that it took us from Newton's world of witch-burnings and horse-drawn
transportation to our world of instant communications and jet aircraft in only 300 years. It provides a way to distinguish what is probably right from
what is probably wrong, in an agreed-upon manner. Unfortunately it is not universally agreed-upon, even yet - witch hunts still go on... Above all,
science is about clear and unambiguous communication of ideas.
Please feel free to ask questions in class, to
for a revision of some
material "in different words," and to use the office
hours for a "smaller group"
discussion of particular topics and try also Epost as well. It is very important that you keep up your reading and advance through the homework problems as the course progresses. It is almost impossible to get a good grade without working a fair number of homework problems.
The Physics Department runs a Study Center where
work is available for many hours Monday through
There are a number
of computers in this room as well where you can access the Internet. The Study Center is located in this building, downstairs from the Foucault pendulum. In the Study Center there are tables assigned to different courses. Depending on the time of the day, there may be one, two, or three Teaching Assistants working through the tables answering questions. At some times there will be additional faculty assistance. Some students have found it useful to form "groups" who work homework together.
NB Some of the material here has been borrowed
my colleagues' webpages.
|January 3-6||1D Kinematics, Vectors|| Ch. 2, 3
| January 9-13
|| Vectors, 2D Kinematics
||Ch. 3, 4|
|January 16 Holiday||Martin Luther King Day|
| January 17-20
|| Newton's Laws
|| Ch. 5
|January 23-27|| Applications of Newton's Laws
|| Ch. 6
| January 30 - February 3
|| Work and Kinetic Energy
|| Ch. 7
| February 6-10
|| Potential Energy
|| Ch. 8
| February 13-16
|| Linear Momentum
|| Ch. 9
|February 17, Friday||
|February 20 Holiday||Presidents Day|
| February 21-24
|| Rotational Kinematics
|| Ch. 10
| February 27-March 2
|| Rotational Dynamics
|| Ch. 11
| March 6-10
||Gravity|| Ch. 12
Monday, March 13
2:30- 4:20 pm