**Teacher (lectures):** Dan Styer, Wright 215, 775-8183,
Dan.Styer@oberlin.edu

home telephone 281-1348 (2:30 pm to 9:00 pm only).

**Teacher (laboratories):** John Scofield,
Wright 210, 775-8333,
John.Scofield@oberlin.edu.

**Office hours for Mr. Styer:** Tuesday, 9:00 am to 10:00 am;
Tuesday, 2:30 pm to 3:30 pm;
or by appointment.

**Course web site:**
http://www.oberlin.edu/physics/dstyer/P111.
I will post handouts, problem assignments, and model solutions here.

**Topics:**

- Electricity (weeks 1-5, chapters 21-27)
- Magnetism (week 6, chapters 28, 29)
- Electromagnetism (weeks 7-10, chapters 30-33)
- Thermodynamics (weeks 11-13, chapters 18-20)

**Discussion sections:** Optional discussion sections
meet on Thursdays and Mondays at 2:30 pm and Tuesdays at 11:00 am
in Wright Laboratory 209.

**Readings:** Our textbook is D. Halliday, R. Resnick, and J. Walker,
*Fundamentals of Physics*, 8th ed.
(Wiley, New York, 2008).
One great feature of this text is that, in addition to end-of-chapter
questions and problems, it has "checkpoint" questions embedded in
the reading. These are quick questions that make sure you're following
the reading correctly. As you read the book you should perform these
checkpoints as you come to them, and check your answers against the
ones given in the back of the book.

**Lectures:**
In this course I will need to represent many different types of
entities on the chalkboard simultaneously. To help keep these different
sorts of things straight, I will use various colors. (Some students have
found it helpful to take notes with a variety of colored pens.) I will use

the color: | to represent: |

white | physical objects |

yellow | mathematical lines and surfaces |

red | charge and current |

blue | electric field |

green | magnetic field |

**Minute papers:** I will end every lecture a minute or two early
so that you can write a brief (one- or two-sentence) reaction to the state of your knowledge concerning this course.
Write this reaction, and your name and computer mail address,
on a slip of paper and hand it in to me
as you leave class.
I will use these reactions
to plan the next lecture and the future path of this course.
Your most useful reaction would be a specific question: for example,
"Does the electric field due to one charge change because of the
presence of a second charge?"
Other possible reactions would be indications of general interest
("I didn't follow the use of spherical symmetry with Gauss's Law.")
or general questions ("Why should I care about this stuff, anyway?").
Please avoid questions of marginal relevance to this course ("How can
I get that cute redhead in the second row to notice me?").

The ability to answer questions is an important skill. The ability to ask them is too. The problem assignments hone your answering skills, and the minute papers hone your asking skills.

**Problem assignments:** The problem assignments in this course
are not a dry appendage designed to keep you indoors on sunny days.
Instead, the problems are central to your learning in the course.
Problem solving is a more active, and hence more effective, way
to learn than reading text or listening to lecture.
Problems will be posted on the course web site every Wednesday
and are due at the beginning of class the following
Wednesday unless there is an exam.
My model solutions will be
posted at the end of this class,
so late assignments cannot usually be accepted.
(I may make an exception in the case
of a medical or family emergency, but in most cases it is to your
advantage to move on to the next
assignment rather than to let old work pile up.)
In writing your solutions,
do *not* just write down
the final answer. Show your reasoning and your intermediate steps. Describe
(in words) the thought that went into your work as well as describing (in
equations) the mathematical manipulations involved.

For most problems assigned I will also list one or two "warm-up problems".
If you find the assigned problem too complex or too abstract, then
try the warm-up problem as an easier or more concrete exercise involving
the same concept or skill that the main problem addresses.
Working the warm-up should help you with the assigned problem.
These warm-ups are *not* required and should not be turned in.

I encourage you to collaborate or to seek printed help in working the
problems, but the final write-up must be entirely your own: you may not copy
word for word or equation for equation. When you do obtain outside help you
must acknowledge it. (E.g. "By integrating HRW equation (29-41) I find
that. . ." or "Employing the substitution *u* = sin(*x*)
(suggested by Carol
Hall). . ." or even "In working these problems I benefited from discussions
with Mike Fisher and John Silsbee.") Such an acknowledgement will never
lower your grade; it is required as a simple matter of intellectual fairness.
Each assignment will be graded by a student grader
working under my close supervision.

**Laboratories:** Your laboratory work is an important part of this course,
both for its own sake and for the light it sheds on the lecture material.
The laboratory is also a good place to question, explore, and generally have fun.
Laboratory sections meet for three hours once a week on either Tuesday, Wednesday,
or Thursday afternoons starting promptly at 1:30 pm in Wright 214.
You must receive a passing lab grade to pass this course.
Additional information about laboratory will be distributed at your first lab meeting.
There will be laboratory-related questions on the exams.

**Exams:** There will be three one-hour exams and one two-hour final exam.
The three hour exams are scheduled for 9:00 a.m. (class time) on
10 March, 14 April, and 28 April.
The final will be at
9:00 to 11:00 a.m. on Thursday, 20 May (the time set by the registrar).
I will drop the lowest hour's worth of exam score in determining your grade
(i.e. either the score of one hour exam or half the score of the final).
No collaboration is permitted in working the exams.
You may consult the text listed above and
your own notes that fit on both sides of one 8 1/2 by 11 inch page of paper,
but no other material. (In particular, your lab manual and lab notebook are
*not* permitted.) Calculators are permitted.
Before each exam I will distribute a
sample exam consisting of exam questions that I have given in previous
incarnations of this course.

At each exam you're allowed to bring your text and one sheet of paper with your own notes. (You may also, of course, make notes in the margins of your text.) What are the reasons for these rules?

- I doubt that you'll use your notes, but the process of making up your notes - of deciding which ideas are the most important and the most useful - can be very helpful in giving you a clear overview of what's transpired in the course.
- I doubt that you'll use your textbook, but the fact that you
*can*bring it emphasizes that you're not supposed to memorize equations - you're supposed to work with and apply the ideas.

**Guest lectures:**
The Department of Physics and Astronomy periodically invites visiting scientists to lecture
at Oberlin. I will announce these visits in class. If you attend
the guest lecture and submit to me a one-paragraph description
through this course's Blackboard site,
you will be awarded 20 extra-credit problem-set points.

The purpose of the guest lectures is to broaden your horizons: to show
you physics as it is done today and to present you with a viewpoint
different from my own. You will not understand everything that the visiting
speakers say . . . neither will I! One objective of the guest lectures is to
show you how to get *something* out of a talk even when you don't
understand *everything* in the talk.

**Grading:** Your final numerical grade will be compounded of 25% lab,
37.5% problem assignments, and 37.5% exams.
On a 40-point scale, those with 40-36 points earn the grade "A",
35-30 points earn the grade "B", 29-20 points earn the grade "C",
19 or fewer points do not pass.

**Reserve reading:** The following books are on reserve in the Science Library.
(They are located on shelves along the south wall, not far
to your right when you enter, near some comfortable chairs
to encourage browsing.)
Our text is

- J. Walker,
*Fundamentals of Physics*(8th edition) [Science QC21.3.H35 2008]

- E.M. Purcell,
*Electricity and Magnetism*[Science QC21.2.B474 vol. 2] - R.P. Feynman, R.B. Leighton, M. Sands,
*The Feynman Lectures on Physics*, volume II [Science 530 F438F vol. 2]

- F.W. Sears, M.W. Zemansky, H.D. Young,
*University Physics*(6th edition) [Science QC21.2.S36 1983]

- Edward Nelson,
*Tensor Analysis*[Mudd QA433.N44] - Ivan Sokolnikoff,
*Tensor Analysis: Theory and Applications to Geometry and Mechanics of Continua*[Mudd QA433.S64 1964] - Banesh Hoffmann,
*About Vectors*[Science QA433.H63 1975]

- Enrico Fermi,
*Thermodynamics*[Science 536.7F386T] - H.C. Van Ness,
*Understanding Thermodynamics*[Science QC311.V285 1983]

- George Polya,
*How To Solve It*[Mudd QA11.P6 1973] - Andrew Elby,
*The Portable T.A.: A Physics Problem Solving Guide*, volume 2 [Science QC32.E56 1998 vol. 2] - Michael E. Browne,
*Schaum's Outline of Theory and Problems of Physics for Engineering and Science*[Science QC21.1.B77 1999]

- Jearl Walker,
*The Flying Circus of Physics*[Science QC32.W2 1977]

Electricity | |
---|---|

Week 1 |
Lab: Organizational Meeting (brief) |

8 February | Introduction |

10 February | Electric Charge, Electric Force, and Electric Field |

12 February | Visualizing Electric Field: Arrows, Field Lines, and Flux |

Week 2 |
Lab: Electrostatics |

15 February | Gauss's Law I |

17 February | Gauss's Law II |

19 February | Electric Potential |

Week 3 |
Lab: Mapping Electric Potentials and Fields |

22 February | Conductors in Electrostatic Equilibrium |

24 February | Capacitors |

26 February | Electric Potential Energy |

Week 4 |
Lab: None |

1 March | Current: Charge in Motion |

3 March | Circuits I: Informal |

5 March | Circuits II: Formal |

Week 5 |
Lab: DC Circuits I |

8 March | Electrical Safety, Shielding, Grounding |

10 March | First Exam |

12 March | Discharge of a Capacitor: Physics by Common Sense |

Magnetism | |

Week 6 |
Lab: DC Circuits II |

15 March | Magnetic Forces on Moving Charges |

17 March | Magnetic Forces on Currents and |

Magnetic Field Made by a Single Moving Point Charge | |

19 March | Making Magnetic Field |

Electromagnetism | |

Week 7 |
Lab: Using an Oscilloscope |

22 March | Making the Equations Consistent |

24 March | Making E by Changing B |

26 March | Implications of Faraday's Law for Circuits |

(Spring Break) | |

Week 8 |
Lab: Solar Cell |

5 April | Uses of Inductors |

7 April | Alternating Current Circuits I |

9 April | Alternating Current Circuits II |

Week 9 |
Lab: Measurement of Magnetic Field |

12 April | Alternating Current Circuits III: LCR circuit |

14 April | Second Exam |

16 April | Something is Missing |

Week 10 |
Lab: AC Circuits I |

19 April | Maxwell's Equations and Light |

21 April | Electromagnetic Energy and Momentum |

23 April | Polarized Light |

Thermodynamics | |

Week 11 |
Lab: AC Circuits II |

26 April | Fluids and Pressure |

28 April | Third Exam |

30 April | Temperature |

Week 12 |
Lab: Polarization of Light |

3 May | Heat and Work |

5 May | Heat Capacities; Adiabatic Changes; the Carnot Cycle |

7 May | Efficiency of Carnot Engines |

Week 13 |
Lab: Calorimetry |

10 May | The Second Law |

12 May | Definition of Entropy |

14 May | What is Entropy? |

Final exam: 9:00 -- 11:00 am, Thursday, 20 May. |