Welcome to Physics 123 (section 2)!
NOTE: Section 2 is for Physics majors and minors only, or (I suppose) for
people who are seriously considering a major/minor. If you do not fall into that
category, please sign up for Section 1.
Instructor: John S.
Email address: "john_" (including the underscore) plus "colton" at "byu dot edu"
Office hours: MWF, 2-3 pm (right after class) in the Underground Lab study area
Office: N335 ESC, available by appointment
T.A./grader: Chris Mackprang
TA's email address: "mackpack" + "314" (the first three digits of pi; not sure
if that's just a coincidence) at "yahoo.com"
TA's office hours: MWF, 4-5:30 pm in the Underground Lab study
- 22 Apr 2011 - Final exam graded,
solutions posted below.
- 2 Feb 2011 - Lecture 13 "What is
entropy" handout posted, link is in the Lecture Notes section below.
- 17 Dec 2010 - Barebones website set up.
Updates will be posted here in the Announcements section as appropriate.
- The main textbook for the class is Physics for Scientists and Engineers,
by Serway and Jewett (6th, 7th, or 8th
editions). You will need a textbook, or combination of textbooks, that covers
chapters 14, 16-22, and 35-39. Inexpensive used versions are perfectly
- A small auxiliary textbook will be Physics phor Phynatics,
by Dallin Durfee (a faculty member here at BYU). This book contains
supplementary material specific to this section of 123. It is a very inexpensive
book, and Dr. Durfee does not receive any royalties.
Syllabus and Course
Phys 123 section 2
syllabus.pdf - The syllabus will also be available in the bookstore for purchase, for
you prefer, you can print out your own copy from the pdf file. (But if you
do so, please don't use department printers unless you reimburse the department
for the expense.)
- Lecture 1 -
2 - Archimedes' Principle
- Lecture 3 -
Lecture 4 - thermal expansion, ideal gas law
- Lecture 5 -
- Lecture 6 -
- Lecture 7 -
- Lecture 8 - first
law (this is the PowerPoint that I would have used) |
Lecture 8 - Stokes (this
is the PowerPoint that Dr Stokes actually used)
Lecture 9 - molar specific heats
- Lecture 10 - engines
Lecture 11 - refrigerators and Carnot
- Lecture 12 - entropy
- Lecture 13
- What is entropy? (lecture notes) |
Lecture 13 handout - What is
entropy? (This is
the handout for the reading assignment.) (Last lecture for exam 1.)
- Lecture 14 - waves
(start of lectures for exam 2)
Lecture 15 - waves on a string
- Lecture 16 -
Lecture 17 - reflection, transmission, dispersion
- Lecture 18 -
sound waves (with a little bit more dispersion discussion at the start
of the lecture)
Lecture 19 - Doppler, superposition
Lecture 20 - standing waves, resonance
21 - beats, uncertainty
- Lecture 22 -
Fourier 1 | Mathematica notebooks:
- Lecture 23 -
- Lecture 24 - music
Lecture 25 - reflection, refraction, dispersion
- Lecture 26 -
Huygen, TIR (Dr Hart substituting)
Lecture 27 - polarization, Brewster
Lecture 28 - images from mirrors
29 - images from lenses
Lecture 30 - aberrations, camera, eye
31 - magnifier, telescope
Lecture 32 - interference from slits (this lecture was given by Dr
Lecture 33 - more interference (this lecture was given by Dr Durfee)
Lecture 34 - diffraction from wide slits
Lecture 35 -
Lecture 36 - waves in 3D, optical devices
- intro to relativity
Lecture 38 -
Lecture 39 - Lorentz transformations 1
Lecture 40 - Lorentz transformations 2
Lecture 41 - E = mc2
42 - Project Show & Tell
Videos of Demos
latest Flash Player
Here are a lot of the demos I have done/will do in class this
semester, posted here in case you have to miss a class. Most of these
were posted in old 123 or 105 classes; a few might be from this
semester's 123 class. Click on the demo title to get it to play in the
movie window. Past lectures:
Scores and Grade
Class Identification Numbers
- Instructions for all the labs, along with the sheets which must be
turned in, can be found in the main syllabus packet following the
homework problems. Due-dates for the labs are shown on the main
schedule, the first page of the syllabus.
- All but two of the labs are similar to the "walk-in" labs of Physics
121. They will be set up in room S415 ESC on the dates indicated on the
- Two of the labs involve computer simulations. Follow these links to
get more information for those labs:
Tutorial Lab Info
Here are some old exams for you to use as study aids. There's no guarantee that
this year's 123 exams will be the same as any of these posted exams, in
terms of multiple choice/not multiple choice, time limit/no time limit, notes/no
notes, calculators/no calculators, and so forth.
- Physics 123 section 2 (from Colton, Fall 2010)
- Physics 123 section 2 (from Durfee, Winter 2011)
- Physics 105 exams (from Colton, Fall 2007 - Fall 2009). I have
included these because some of the topics overlap, even though 105
didn't go into as much depth as 123 does.
- Exams from a junior-level Thermodynamics class I taught at
University of Wisconsin-La Crosse (Spring 2006). The first part of that
class was fairly similar to the Thermodynamics section of this course,
but there are of course some differences. Still, these may be helpful to
This year's exams
to get started
- You need to do the following things as soon as the semester begins. (If you
have added the class late, it's even more important to do them ASAP.)
→ If you have not received one in an email, get a "class ID number" using the "Obtain your class ID
number" link on this page. You will use the CID as your personal identifier for all your
→ Read the syllabus, available either as a pdf file elsewhere on this
web page, or from the bookstore. Among other things, the HW problems are found in the syllabus.
→ Get a copy of the Serway & Jewett textbook (see textbook info, elsewhere on this web
page). If you can't get one
soon, you can use one of the copies available in the Tutorial Lab (see Tutorial Lab info
elsewhere on this web page).
→ Do the reading assignments for each upcoming lecture as marked on the
schedule on pg 1 of the syllabus;
if joining late, do the past reading assignments.
→ Get an "i-clicker" at the bookstore if you don't already have one. Bring your
clicker to each class.
→ Register your clicker (via the link elsewhere on this page) so that you get credit for in-class clicker
→ Get your individualized homework data numbers which you will plug into the HW
problems in your syllabus, using the "Print HW data sheet" link on this page.
→ Start working HW problems! The first assignment is due Wed, Sept 1. You can get credit for late assignments, so work
the HW sets you miss/have missed, in addition to the ones coming up. The syllabus
has much more
about how to turn in HW problems.
→ Where required, submit your computer-graded HW answers via the online system using the "Submit HW" link. Again, read
how to do this in the HW section of the syllabus. Learn how to get partial
credit by re-submitting the problems you get wrong. Talk to other students to
figure this out, if necessary. HW due-dates are marked on page 1 of the
→ Be sure to turn in the work for your HW problems to the slot labeled
“Phys 123, section 2” in boxes near room N375 ESC.
up for a departmental computer account if you don't have one already.
→ Gain access to the departmental computer labs (N337 and N212) by talking
Sorenson in room N281.
Dr. Colton's Basic Commands
of Mathematica document. (Must be opened with Mathematica.)
BYU Physics Department's
website for Physics 230, where among other things the Introduction to
Mathematica textbook can be downloaded (if you want even more
Mathematica than my "Basic Commands" document).
Current Topics in Physics