Welcome to Physics 105!
Instructor: John S.
Email: You can email me via this link:
Office hours: T Thu 2 - 3 pm, in the Tutorial Lab N304 ESC.
Office: N335 ESC, available by appointment
T.A./grader: Shaun Livingston
TA's email address: firstname.lastname@example.org
TA's office hours: appointments
available as needed
- 10 Jun 2013 - Syllabus posted, website fleshed out a bit more.
- 7 May 2013 - Website set up, pretty barebones for now. As I add things to the
website, I may post announcements here in this section.
The textbook for the class is College Physics, by
Serway & Faughn (5th,
7th editions) or by Serway & Vuille (8th,
9th editions). Only volume 1 is needed for
Physics 105; but volume 2 is used in Physics 106, so if you’re planning to
take that course too it may be cheaper to get a book with both volumes
combined. Feel free to obtain an inexpensive used copy.
Syllabus and Course
syllabus - Fall 2013.pdf
- The syllabus will also be available in the bookstore for purchase (for
about $2). Or, if
you prefer you can print out your own copy from this pdf file.
Max: Homework, Warm-Up Exercises,
Clicker Registration, CID number, and Grades
- Link to Max:
http://max.byu.edu. Homework, warm-up
exercises, clicker registration, finding your student "Class ID" number (CID),
and grade checking are all handled through the Max website.
- Clickers should be
registered at the start of the semester.
- Warmups must be completed by 15
minutes before class.
- Homework must be completed prior to 11:59 pm the due-date.
Use your CID instead of your name on all work that you turn in via the
homework boxes (i.e. extra credit papers and free body diagrams).
can be checked at any time throughout the semester. If you detect any errors
in your grade, please let me know.
- If you want to calculate your grades
for various scenarios, you can download this excel spreadsheet:
grade calculation worksheet.
Just change the numbers in yellow according to what you think you'll get in
the various categories and it will calculate your final grade.
- We will use the "Digital Dialog" feature of
Learning Suite as a class
discussion forum. (Not available until after add/drop deadline of Sep 16.)
- Blank lecture notes, posted before each class: (Note: I sometimes make
changes after posting them here, so unless you download them right before
class there's no guarantee they will be identical to my class notes)
- Filled-out lecture notes, posted after each class:
Videos of Demos
latest Flash Player
- Here are videos of nearly all the demos I will do in class,
recorded from previous years. The dates shown are (if later than
today's date) the anticipated date we
will do the demo or (if before today's date) the actual date we did the demo.
- 3 Sep 2013 - no demos
- 5 Sep
2013 - penny and
- 10 Sep 2013 -
milk drop acceleration of gravity
- 12 Sep 2013 -
vertical cannon cart | shooter and dropper
- 17 Sep 2013 - pushing on two balls | ping pong ball cannon | still shot of ball emerging from end of cannon
- 19 Sep 2013 - Newton's Third Law |
| pen and hoop
| ball on string | pulleys redirect tension | simple pulley constant velocity | block and tackle
- 24 Sep 2013 - view from rotating reference frame (sorry, video didn't turn out) |
ant living on ball (note that when I said the ant thinks there's a "downward force", I meant "outward force") |
static vs kinetic friction
| measuring mu (note: to finish the calculation, tan(26°) =
0.49, so μs = 0.49)
- 26 Sep 2013 -
pendulum narrowly missing instructor | two track race
- 1 Oct 2013 - predicting speed | Hooke's law | measuring k via N2 | measuring k via energy | measuring k of shooter cart
- 3 Oct 2013 - human horsepower (sorry, no video)
- 8 Oct 2013 - Balls knocking over block | Collision1 - small hits small - velcro | Collision2 - small hits big - velcro |
'explosion' | Collision4 - small hits big - elastic
10 Oct 2013 -
Newton's cradle with duckpin balls
| velocity amplifier | thrown foam object |
rotating bicycle wheel
15 Oct 2013 - no demos
17 Oct 2013 - t-handle torque | balanced objects
22 Oct 2013 - Preclass video to watch:
cart and ball race
22 Oct 2013 - spinning rod |
two "identical" rods (sorry, no video) | Moment of inertia races: hoop vs sphere, hoop vs disk, big disk vs little disk, big hoop vs little hoop, big sphere vs little sphere
24 Oct 2013 - Hoberman sphere | spinning chair and weights | gyroscope | strange briefcase | bicycle wheel precession | rotating person - single wheel | rotating person - double wheel
29 Oct 2013 - exam review; no demos
31 Oct 2013 -
force vs pressure | bed of nails | collapsing can | Magdeburg hemispheres |
reverse tug of war | Coke vs Diet Coke | aluminum foil sink or float
5 Nov 2013 -
Bernoulli red fluid | blowing on paper
| floating ball | chimney effect | ball in funnel | cards and wooden block
link to Elder Nelson's 1997 conference talk
7 Nov 2013 - liquid bulb thermometer | pressure gauge thermometer | bimetallic strip |
ring and ball | rubber nail | helium vs air balloon |
LN balloon pop | LN volume expansion
12 Nov 2013 -
lighter molecules go faster | fast molecules cause pressure
14 Nov 2013 - boiling water using a vacuum (sorry, no video)
19 Nov 2013 -
adiabatic cotton burner | freeze spray
21 Nov 2013 - Pascal's barrel | Stirling engine
3 Dec 2013 - spring vs circular motion | mass on spring - period depends on mass | pendulum - period depends on length | pendulum - period sometimes depends on amplitude
| Slinky - longitudinal and transverse waves | tubing - wavespeed depends on tension | violin - pitch depends on tension
5 Dec 2013 - Shive wave machine - amplitudes add or subtract | 6 still shots of the amplitudes subtracting | no sound in a vacuum
| hearing test (note that I don't know if the microphone picked up the highest frequencies, because I myself can't hear them!) | how a speaker works | tuning forks
| Joy to the World | singing rod
10 Dec 2013 - Doppler effect | two speaker interference | standing waves on
a rubber tube
| lady's belt and jigsaw
12 Dec 2013 - trumpet harmonics (note in the recording I said "even without
using notes" where I meant "without using valves") | open vs closed end | flame standing waves | beats | beating tubes
| spectrum analyzer on computer (sorry, I didn't think to video
Tutorial Lab Info
I strongly recommend working through the old exams entirely on your
own before looking at the solutions. Pre-curve averages are listed for
the multiple choice parts of the exams. No guarantees as to whether this
year's exams will be the same difficulty, easier, or harder than past
exams. Also note that on some past exams I allowed students to bring a
note card whereas on others I supplied a formula sheet. Finally, the
coverage per exam may have been different from year to year, so (for
example) the Fall 2007 Exam 1 may contain material that won't be tested
on your exam 1.
This year's exams
Here are my solutions to this year's exams:
Here are the blank exams:
Here are some notes from Shaun from his exam reviews.
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.)
→ Find your "class ID number" via the
Max website. You will use the CID as your personal identifier for all your
→ Read the syllabus, available either as a
downloadable pdf file
or from the bookstore.
→ Get a copy of the 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 given on the
Warm-up assignments on Max;
if joining late, do the past reading assignments.
→ For each upcoming lecture, answer the Warm-up quiz for the lecture via
Max. Those quizzes are due 15 minutes
→ Get an "i-clicker" at the bookstore if you don't already have one. Bring your
clicker to each class.
→ Register your clicker on Max so that you get credit for
participating in the in-class clicker
→ Start working HW problems! They are found on
Max. The first assignment is due Thurs, Sept
5. You can get credit for late assignments, so work the HW sets you miss/have
missed, in addition to the ones coming up.
→ Submit your HW answers via
Max. Learn how to get partial
credit by re-submitting the problems you get wrong.
→ Visit Learning Suite to use
the class discussion forum (Digital Dialog) (only available after Sept 16).
Photo contest results:
Lab, the free program I used to show sound waves in lecture 28
The video I didn't show in lecture 27:
Two interfering speaker animations:
Stokes' website that has the
"driving past bell tower", "Doppler effect" and "Sonic boom" web-demos,
from lecture 27
satellite tracking website from lecture 13
velocity components animation from lecture 4
The "projectile motion" applet (with air resistance) from lecture 4
"Scorched Earth" computer
game from lecture 4
The "moving man" applet from lecture 3
The "vector web demo" from lecture 3
Worked physics problems available
from U of Oregon
by Dan Styer of Oberlin College
solve physics problems, by Dan Styer of Oberlin College
Dr Colton's MCAT formula review
sheet (includes Physics 105 and 106 material)
Current Topics in Physics