PHYS 1220/1320: Physics II –E&M and Thermodynamics
General Information
Instructor:
R. Michalak,
TAs:
N/A
Office
215 PS
E-mail
rudim@uwyo.edu
Office hours (RM): TW4pm, F11am or via email or by appointment
Expect that email inquiries may not be answered before the following day.
On exam days I hold office hour from 9-12.
This course fulfils university program requirement USP ‘SP’ for 4 credit hours
Lecture:
MTR 12:10 to 2:00
Laboratory & discussion: WF 12:10 to 2:00
Text:
CR 215
PS133
Sears & Zemansky’s University Physics, 13th edition by
Young&Freedman (older editions may vary substantially!
second hand books often come with expired homework key)
MasteringPhysics : www.masteringphysics.com use picture link for 13th ed
Go to University of Wyoming and choose class RM1220SUM14
Webpage:
You will find lecture templates and other course related information on my website
www.physics.uwyo.edu/~rudim
Supplementary Reading Suggestions: On your request I am happy to name some useful texts, which adopt
different teaching approaches than Young Friedman.
Course Content and Course Pre-Requisites:
This course is an introduction to the physical phenomena temperature and electric charge. We will
approach the material from theoretical and applied angles. Our course is part of the suite of experimental
physics courses. Consequently, significant emphasis is put on developing laboratory skills. Most physics
courses differ from, say, engineering courses in that we pay much more attention to where laws and
equations come from (‘derive’ them) and what their range of applicability is. ALL laws of physics have
significant limitations attached to them when and where they apply. It is important for any deeper
understanding that the student develops an insight into these aspects of physical law.
We will use concepts previously learned in Mechanics, like Newton’s Laws and conservation laws. With
them and with new empirical observations we will explore how the presence of electric charge causes the
numerous phenomena of electricity and magnetism.
We will learn about the rules which govern circuitry. As we go along, we will discover fundamental laws
called the Maxwell equations, which allow us to describe all of these phenomena and unite the concepts of
magnetism and electricity as two aspects of the same thing: electric charge and its motion. We will learn to
describe electromagnetic phenomena as the results of the propagation of electromagnetic waves.
Then we will study new phenomena, which occur when temperature changes, e.g. heat transport, specific
heat, and the fundamental laws of thermodynamics. These new laws will add to our understanding of all
other fields of physics in that they provide a direction in which natural processes spontaneously progress.
A working knowledge of calculus is required. Calculus II is a pre-requisite for this course! Note, that the
systematic of the science of physics does not follow the systematic of mathematics! We will have to use
concepts like differentiation, integration, and vectors from week one on. Also, good success in this course is
unlikely without a solid grasp of algebra, geometry, and trigonometry.
All of the following information is tentative and I reserve the right to change any of it as seems
necessary to keep the class average on course. If such changes are made, they will be announced in
class, so your class attendance is important. It is your responsibility to stay informed and to catch up
with anything you may have missed in class.
Lecture
Our course consists of a large amount of information and much of it is new to many students. I have
arranged the content into seven major sections:
Electricity- the phenomenon of electrical charge, field, force, energy, and electric potential;
Basic Circuitry- resistor and capacitor networks; fundamentals of time dependence in circuits
Magnetostatics- surprising effects of moving charges, right hand rule frenzy
Magnetism- more involved consequences of charges’ motion
Electrodynamics- the Maxwell Equations describe how magnetic fields arise out of changing
electric fields and vice versa, electromagnetic waves;
Thermal physics- temperature and heat, heat transport;
Four Laws of thermodynamics- heat engines, phase changes and phase diagrams, th.dyn.
potentials and partial derivatives
Each topic by itself is not terribly difficult. However, for many students much of the material is new and
our brain has only so much capacity to deal with new things in shorts amount of time. To help you with that
aspect of learning, I break lecture down into actual lecture blocks and interactive activities. Some activities
deal with videos, others with web applets (bring an internet device to class, if you can), others with in-class
demonstrations, and yet others with active problem solving. They are designed to clear your brain’s short
term memory and make it susceptible again. This help will only be effective, if you actively participate in
the assignments.
Some technical notes:
The lecture will in part be presented in power point and in part on the white board. Demonstrations, videos,
and web-applets will be used wherever helpful in illustrating a complex or new phenomenon or principle.
You need to write down the information on the white board as your lecture notes, or it will be lost. My
power points on the webpage are printer friendly and help you to keep up with the material on the white
board. You are expected to take notes about videos, applets, and demonstrations. The content of each may
be part of exam questions.
I employ group work techniques during lecture. Our department’s record, as well as national studies, have
shown that the use of modern teaching techniques deepens understanding and reliably improves the
outcome of standardized tests of knowledge retention.
Discussion Sessions and Laboratory
Participation in discussion is mandatory. Discussions are integrated with the lab sessions. Your
participation will only count, if you sign the signup sheet during discussion.
Participation in all laboratories is mandatory for the successful completion of this course. There is no
time for makeup labs. Each student submits a streamlined single lab report. The report consists of:
The lab book with original data and pertinent information necessary to reproduce the results.
A summary statement about the main result(s) within error.
Tables with the main data analysis.
Graphs with proper error bars and appropriate fitting curves.
A self-evaluation of your own pre lab answers (pre lab submitted together with the report).
Active and thoughtful lab participation is part of the lab grade.
As the term progresses, our expectations will increase: During the first few labs, it is mainly your active
participation that is assessed. By the week of exam 1, we will operate at full expectation level. At that time,
thoughtful work will include the anticipation and correction of systematic errors, your decision to adapt the
experiment plan to the factual situation in the lab, and other such proactive contributions. The competence
of your contribution will include such factors as the correct use of measurement equipment and the
identifying of and timely correction of obviously wrong results. Think of this as a skill you need to master
for future job performance. In professional life no one will have patience with an incompetent worker and
you could lose a valuable job, if you do not display professional conduct and appropriate reflection. Look at
our lab rules as training and help toward honing that professional competence.
A ‘good’ lab group consists of four students who share in all aspects of the experimental work, the note
taking, and who are all reasonably prepared for the tasks. The latter requires coming prepared to lab. Plan
for at least half an hour to work through the lab manual before lab and, before the first lab, to work through
the data and error treatment sections.
Exams
The exams will contain both quantitative and conceptual problems. The exams will be closed book and
closed notes. I will provide you with a formula sheet (the master equations listed in the lab manual). The
use of any electronic equipment is not permitted during the exam. Calculators with no formulas stored on
them are acceptable.
All exams are mandatory and none of the grades will be dropped or replaced. The exams will be held at the
following times and cover the following chapters in Young & Freedman:
Exam 1, midterm, CR215 –
Exam 2, final,
CR215 –
F 6/7
F 6/28
410 – 600 pm
1200 – 200 pm
Chapter 21-28
Chapter 29-33, 17-20
Homework
We use the Mastering Physics online homework system (see course webpage). The online homework must
be submitted by each student individually but you are allowed to work together on the solution as long as
everyone contributes an equal share and contributes to all problems.
The deadline is indicated for homework in the tentative schedule below and on the Mastering Physics
website. It is subject to change as announced during lecture. Be advised not to work last minute on the
online submissions. The system tends to be busy at times and the internet connection could be down. It is
your responsibility to work and submit before the deadline. I set the online hw system up to accept post
deadline submissions for a penalty. The system will close for late submission on the Saturday after the final
at 5pm.
The MP syntax requires some experience. I provide a no penalties training hw, which does not count
toward the grade, but which gives you opportunity to learn the language syntax to avoid penalties in the
actual hw. It is called ‘hw0’. You should strive to use the training hw tonight because regular hw will be
due Thursday night and thereafter twice a week.
A short list of common sources of grade loss in MP:
- Wrong spacer between multiple entries
- Wrong rounding of final or of intermediate results
- Multiple attempts used up for the same wrong answer (note also: MP has a 2% answer
tolerance criterion for grading)
Some problems have hint boxes. Opening hint boxes is not causing any penalty, except when you enter
wrong answers into answer boxes within hint boxes. On the other hand, you can earn partial credit for a
correct answer in a hint box.
Special accommodations
If you have a physical, learning, or psychological disability and require accommodations, please let
me know as soon as possible. I will try to accommodate your condition as best as circumstances
allow. You will need to register with University Disability Support Services (UDSS) in SEO, room
330 Knight Hall, 766-6189, TTY: 766-3073. If you choose to notify me late about such
circumstances you forfeit your right for special accommodation for that instance.
Academic honesty
Don’t cheat. In the long run you are only hurting your chances at succeeding in college. The actual
university rules:
Academic dishonesty is defined in University Regulation 802, Revision 2 as “an act attempted or
performed which misrepresents one’s involvement in an academic task in any way, or permits another
student to misrepresent the latter’s involvement in an academic task by assisting the misrepresentation.”
and there is a well-defined procedure to judge such cases and serious penalties may be assessed. A shorter
common sense interpretation could sound something like this: If it’s not your work, don’t pretend that it is.
Note that collusion and complicity are also punishable under this rule.
For our work the following is of particular relevance:
HW is group work.
Exams are not group work and must be entirely your own work and must be performed without consulting
any help (no books, notes, electronic media, etc. other than what is being handed out to you).
You may use solution CDs and other sources, which provide answers to practice questions for MP, but
using such sources for the actual hw problems is fraud. Anyone, who will be caught committing such fraud,
will receive an F as course grade and the Dean of Students will be informed of the incident. Anyone who
has high hw scores (above 90%), but very poor exam scores (below 50%) may be asked to come in to be
questioned about the discrepancy in grades.
Grading
-
The average final grade in the course has historically been a B (GPA ~ 2.6). This is fully consistent with
College of A&S and College of Engineering grade averages for 1000 and 2000 level classes. Some courses
have often significantly lower grade averages (for example, Calc I, II, III or Statics and Dynamics, and
Phys 1210).
Details of grading
Exams:
Homework:
Labs:
(subject to revision):
2
(60%)
11 (10 back to back) (20%)
9
(20%)
_____
100%
Scale:
A
B
C
D
F
> 90.0%
80.0-89.99%
70.0-79.99%
60.0-69.99%
< 60.0%
I reserve the right to curve the final grade and each exam.
I will discuss grades for hw, labs, exams, and all other grades only for up to one week after the work has
been handed back to class (not one week after you have collected it).
General Rules of Conduct during class time:
No electronic devices
No taping of any kind without prior permission
No unrelated activities that interrupt class.
Read your university email account at least once daily.
Schedule Phys 1220 Summer Course ‘14
M
May 19-23
Intro
E1
T
E2
E3
W
R
E4
E5
E6
E7
Lab1 + disc 1
E10
E11
Lab3/4+ disc 3
M3
M4
M5
M6
HW0,11pm
-
E7
E8
Lab 2/3,disc 2
May 26-30
E12
E13
M1
M2
Lab5+ disc 4
June 2 – 6
June 9 -13
M7
M8
M9
M10
F
Ohm, Par/Ser R
B coil
Lab6+ disc 6
B wires
Field Lines
HW1/2,11pm
Kirchhoff, C netwk.
HW 3/4, 11pm
HW5/6, 11pm
midterm exam
M11
M12
Lab 7+ disc 7
Lenz
HW7/8, 11pm
June 16-20
T1
T2
T3
T4
Lab 8+ disc 8
Heat cond.
T5
T6
Lab 9 + disc 9
Th. expansion
HW9/10, 11pm
June 23-27
T7
T8
T9
T10
E Electricity
M Magnetism T Thermo
Lab 10+disc
Spec heat
HW11, 11pm
T11
T12
Tentative lecture plan (use reading guide on webpage to come prepared):
Intro
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
M1
M2
M3
M4
M5
M6
M7
M8
M9
Syllabus,
ch 21: F, electrostatic force general, induction, F-E-U-V overview
ch 21: F, point charges
ch 21: E, electric field general and point charges
ch 21: E, continuous distributions of charge
ch 22: Gauss’s Law
ch 22: Gauss’s Law, examples
ch 22: Gauss’s Law, examples
ch 23: U – electric potential energy
ch 23: V – electric potential  transition to circuitry
ch 24: capacitors, networks
ch 24: networks, special capacitors
ch 25: current and resistivity, Ohm’s law
ch 26: networks, Kirchhoff rules
ch 27: magnetic fields and motion of charges
ch 27: Biot Savart law
ch 28: current carrying wires
ch 28: Ampere’s law
ch 29: Faraday’s law
ch 29: Lenz’s law, motional emf
ch 30: magnetic induction
ch 30: RL, LC circuits
ch 30: LRC circuits and resonance
final exam
M10
M11
M12
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
ch 31: AC currents
ch 31/32: AC and EM-waves
ch 32: Maxwell’s laws and EM waves
ch 17: temperature, heat, thermometers
ch 17: thermal conduction, expansion; specific heat
ch 17/18: specific heat, state equations, kinetic gas theory
ch 18: kinetic gas theory
ch 18: phase diagrams (pV and pT)
ch 19: state variables, first law
ch 19: pV diagram calculus
ch 19: pV diagram calculus
ch 19: heat capacity
ch 20: second law
ch 20: engines
ch 20: entropy etc.