PHYS 1220/1320: Physics II –E&M and Thermodynamics
General Information
OfficeE-mail
Instructor:R. Michalak, 215 PS
TAs:N/A
Office hours (RM): W10 am, 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 USP03 ‘SP’ and USP2015 ‘PN’ for 4 credit hours
Lecture:MTRF 12:10 to 2:00 Enzi 195
Laboratory & discussion:W (lab) and F (discussion, sometimes with short lecture section)
Text: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 : use picture link for 13thed
Go to University of Wyoming and choose class RM1220SUM17
Webpage:You will find lecture templates and other course related information on my website
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 of 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 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 as to 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. 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 sevenmajor 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 motion of charges
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, thermal phenomena;
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 a short 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, has shown that the use of modern teaching techniques deepens understanding and reliably improves the outcome of standardized tests of knowledge retention.
Our brain has only so much capacity to deal with new things in a short 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 twenty minutes hands-on experiments taken from labs, 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.
Discussion Sessions and Laboratory
Discussions are on F and may be integrated with lecture sessions.
Participation in all laboratories is mandatory for the successful completion of this course, unless you have had my prior agreement to transfer a full lab sequence grade from a previous term. There is no time for makeup labs. Each pair of students submits a streamlined single lab report. The report consists of:
The lab bookwith original data and pertinent information necessary to reproduce the results.
A summary statement about the main result(s) within error.
Tables and short text 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 also a part of the lab grade.Take note of these categories as points for reports are awarded according to this list only.
As the term progresses, my 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 identification and timely correction of obviously wrong results. Think of this as a skill you need to master for future job performance. In professional life you do have to display professional conduct and appropriate reflection on your work. Look at our lab rules as training toward honing that professional competence.
A ‘good’ lab group consists of three 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 to lab prepared. Plan ahead to work at least half an hour on the lab manual before lab, and, before the first lab, work through the data and error treatment section.
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, Enzi 195 – F 6/10 410 – 550 pm Chapter 21-26
Exam 2, final, Enzi 195 – F 7/01 410 – 550 pm Chapter 27-30, 17-20
* discuss optional 3rd exam with class – F week 2, 4, 6 *
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 onthe solution as long as everyone contributes an equal share of work and contributes to all problems.
The deadlines for homeworkare indicated in the tentative schedule below and on the Mastering Physics website. They are subject to change as announced during lecture and in Mastering Physics. 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 penalty builds up over two hours. The system will close for late submission on the Saturday after the final exam at 5pm.
The MP syntax requires some experience. I provide a no penalties training hw, which does not count toward the grade. It gives you opportunity to learn the syntax to avoid penalties in the actual hw. The assignment is called ‘HW0’. You should strive to set up and use the training hw tonight because regular hw will be due Sunday night and thereafter once a week. HW0 is due Wednesday night.
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 of succeeding at 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 misrepresentthe 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 in the sense explained above.
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 academic dishonesty.
Anyone, who will be caught committing academic dishonesty of any kind, will have charges filed against them with the College of A&Sand the Dean of Students will be formally notified of the incident to take it on record. A typical penalty will be an F in the course.
Grading
The average final grade in the course has historically been a B- (GPA ~ 2.6). This is right on target for 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 1210/1220).
Details of grading (subject to revision):
Exams: 2(60%)
Homework: 11 (20%)
Labs: 5(20%)
_____
100%
Scale:
A> 90.0%
B 80.0-89.99%
C 70.0-79.99%
D 60.0-69.99%
F< 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 other than for classroom advised internet access.
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 ‘17
M / T / W / R / Fhw deadlines to be updated
May 22-26 / Intro
E1 / E2
E3 / E4
E5
HW0,11pm / E6
E7 / disc 1+2 -E
HW1/2,Sun 11pm
ch. 21/22
May29-Jun2 / - / EC1
EC2
w/ lab excerptsOhm / Field Lines(I) / EC3
EC4
HW 3 R 11pm
ch 23 / disc 3+4 - EC
HW4, Sun 11pm
ch.23,25
midterm1 4pm
June 5– 9 / EC5
EC6 / M1
M2 / R and C networks (II) / M3
M4 / disc 5+6 - M
HW 5/6, Sun 11pm
ch.26,27/28
June 12 -16 / M5
M6
w/ lab excerpts
B coil / M7
M8 / B wires (III) / M9
M10
HW7 R 11pm
ch. 29 / disc 7+8 - M
ch. 29/30
HW8, Sun 11pm
midterm2 4pm
June 19-23 / T1
T2
w/ lab excerpts Heat cond. / T3
T4 / Th. Expansion
(IV) / T5
T6 / disc 9+10 - T
ch. 17/18
HW9/10, Sun11pm
Jun 26- 30 / T7
T8 / T9
T10 / Specific Heat (V)
HW11, Thu! 11pm
ch. 19 / T11
T12 / disc 11+12 - T
final exam4pm
HW12,Sat! 11pm
ch. 20 bonus
E ElectricityM MagnetismT Thermo
Tentative lecture plan (use reading guide on webpage to come prepared):
IntroSyllabus,
E1ch 21: F, electrostatic force general, induction, F-U-E-V overview
E2ch 21: F, point charges
E3ch 21: E, electric field general and point charges
E4ch 21: E, continuous distributions of charge, Gauss’s Law
E5ch 22: Gauss’s Law, examples
E6ch 22: Gauss’s Law, examples
E7ch 23: U, V – electric potential energy
EC1ch 25: current and resistivity
EC2ch 25: current and resistivity, Ohm’s law
EC3ch 26: networks, parallel and series
EC4ch 26: networks, Kirchhoff rules
EC5ch 24: capacitors, networks
EC6ch 24: networks, special capacitors, charging/discharging C
M1ch 27: magnetic fields and motion of charges
M2ch 27: Biot-Savart law
M3ch 28: current carrying wires
M4ch 28: Ampere’s law
M5ch 27/28 buffer day (fill in loose ends)
M6ch 29: Faraday’s law
M7ch 29: Lenz’s law, motional emf
M8ch 30: magnetic induction
M9ch 30: RL, LC circuits, LRC circuits and resonance
M10ch 31/32: AC currents, Maxwell’s laws and EM waves
T1ch 17: temperature, heat, thermometers
T2ch 17: thermal conduction, expansion; specific heat
T3ch 17: specific heat, state equations (18)
T4ch 18: kinetic gas theory
T5ch 18: phase diagrams (pV and pT)
T6ch 18: state variables, first law
T7ch 19: pV diagram calculus
T8ch 19: pV diagram calculus, examples
T9ch 19: heat capacity
T10ch 20: second law
T11ch 20: engines
T12ch 20: entropy etc.
Note that chapter 25 and 26 will be taught before chapter 24!
Blue sections are full labs with lab reports due at the next blue lab.
w/lab excerpts means that shortened lab sections are done studio style during lecture.