Physics 262-001 3 credits Fall 2010

MWF 12-12:50 Regener 103          

Professor James L. Thomas

Office hours in Regener 111: MWF 11-12, W 2-3 + Problem session Phys 267, W 1-1:50 Regener 114

Written Homework

32.6, 32.8, 32.10

Mon, Aug 30

Solutions 1

33.2, 33.20, 33.46

Wed, Sept 8

Solutions 2

34.72, 34.80, 34.94

Wed, Sept 15

Solutions 3

Handout Problems

Wed, Sept 22

Solutions 4

35.50, 36.53, 36.69

Wed, Sept 29

Solutions 5

Ohanian Ch1 2,3,4,7,8,16*

Wed, Oct 6

Solutions Ohanian 1

Ohanian Ch2 1,2,3,4,5,7,10,20

Wed, Oct 13

Solutions Ohanian 2

Ohanian Ch3 8,9,11,16,19,21

Fri Oct 22

Solutions Ohanian 3

Ohanian Ch4: 11,17,19 Ch5: 8 Ch6: 14

Mon Nov 1

Solutions Ohanian 4

38.18, 38.53

Fri Nov 5

Solutions 6

39.35, 39.36, 39.37

Fri Nov 12

Solutions 7

40.52, 40.56

Fri Nov 19

Solutions 8

41.36, 41.50

Mon Nov 29

Solutions 9

43.20, 43.46, 43.54

Mon Dec 6

Solutions 10

*HWs from Ohanian count double.

Links to iClicker Overheads (ppt files)



Relativity 2

Quantum Mechanics



Relativity 3




Relativity 4




Relativity 5




Relativity 6



Relativity 1

Relativity 7





                           Practice Exams and Solutions                      Given Exams & Answer Keys

W Sept 8            Exam 1              Exam 1 Solutions                ClassExam1

W Sept 22          Exam 2              Exam 2 Solutions                ClassExam2      Key           Three Slit Phasor Solution        

W Oct 6             Exam 3              Exam 3 Solutions                ClassExam3

F Oct 22             Exam 4              Exam 4 Solutions                ClassExam4

F Nov 5              Exam 5              Exam 5 Solutions                ClassExam5

F Nov 19            Exam 6              Exam 6 Solutions                ClassExam6

M Dec 6             Exam 7              Exam 7 Solutions                ClassExam7

Final Exam: Friday, Dec 17, 10:00 AM      Final Exam & Solutions

CLASS ATTENDANCE is OPTIONAL (except for exams).  While points are awarded for participating in class, you can also earn the same points by doing extra credit online homework. If you are unable to refrain from talking for 50 minutes, please do not attend class, as you are depriving other students of the opportunity to learn during class time.

Grading & Exams:

There will be seven midterm exams in this class and a final exam.

All are closed book, closed notes. An equation sheet will be provided.

You will need a calculator.

All exams use 10-answer scantron sheets, BUT ANSWERS ARE NOT "MULTIPLE CHOICE"

Rather, numerical answers must be entered to one significant figure in scientific notation.

Some examples of how to use the 10-answer scantron for numerical answers.

Numerical results require two scantron "answers"

All answers should be given to ONE significant figure only, in scientific notation.

Round to the nearest digit.

Example 1&2. The calculated result was 32.

This is 3.2 x 101, which rounds to 3 x 101,

 so A1 is 3 and A2 is 1.

Example 3&4. The calculated result was 474.

This is 4.74 x 102, which rounds to 5 x 102,

so A3 is 5 and A4 is 2.

Example 5&6. The calculated result was 0.62334 x 108.

This rounds to 6 x 107, so A5 is 6 and A6 is 7.

Example 7&8. For zero, fill in both answers as zero.

(The scantron computer cannot figure out that, for example, 0 x 104 = 0.)

Each midterm counts for 1/8th of your grade; your lowest midterm score is dropped.

The final exam counts for 1/4th of your grade.


90% - Lowest A-

80% - Lowest B-

70% - Lowest C

Homework and iClickers add up to 50% of the points missed on exams.

Each correct HW problem, each correct clicker answer adds 0.1% of the points you missed on the exams. Incorrect clicker answers get half as much.


Texts: University Physics, Young&Freedman. 12th Edition. Chapters 32-infinity.

ALSO: Ohanian, "Special Relativity: A Modern Introduction" Chapters 1-4.               

iClicker keypad and Mastering Physics online homework system (MP) are essentially required.  MP comes free with new texts purchased in the bookstore.  If you bought a used text or obtained your text elsewhere you will have to purchase MP (details below). 

The problem session (Physics 267) should be helpful but is not required.


TA, problem/review sessions TBD

The Center for Academic Program Support (CAPS, see

For help in accessing Mastering Physics and for I-Clickers instruction, you may contact Arts and Sciences Service Center, Ortega Room 260, 

This should go without saying:

Do not cheat.  Any form of cheating behavior will be dealt with severely.  I use the words cheating behavior because if you are looking in the direction of your neighbor's paper I can't read your mind and determine whether you are cheating.  But I can tell what you are looking at.  Do not wear a baseball hat or any other type hat that covers your eyes during a test. All cell phones and other electronic devices must be turned off and placed out of sight.  If I even see a cell phone during a test the owner will receive a zero.  I will not tolerate this or other cheating behavior, period.  And there are many other examples.  Use common sense about this.  Turn cell phones off and put them away.

Dropping the class.  If you drop the course then please let me know so I can give you a WP if appropriate. Otherwise, default is WF.

I-Clickers (Keypads):  The I-Clickers/keypads we are using this semester can be purchased from the bookstore. You must register your keypad before class on Friday and bring it to class every day.  To register your i-clicker go to: following the directions provided using your BANNER ID as your "Student ID".  You can also go to  for instructions and help on registering.  When you register your keypad be sure to provide your name (even though the registration Website treats your name as an optional field).

Mastering Physics (MP) is the on-line homework system. Your new book comes with an MP package (no extra cost to you).  If you have a used book you need to buy the Mastering Physics package from the bookstore or you can go on line with a credit card and buy it.  To buy MP access online, go to  then click on the title of your textbook. Then click Buy Now and follow instructions.   Whether your MP package came with the text or whether you bought access from the bookstore or online, everyone must register on line and complete the first MP assignment and start becoming familiar with MP before class on Wednesday, Aug. 26.

Important notes for registering:  The UNM Zip code is 87131.  Our Course ID is MPTHOMAS93135. Student Access Code:  This is a six-"word" printed code supplied beneath the pull-tab inside your Mastering Physics Student Access Kit.  It is valid for registering one student. If the tab in this kit has been pulled back, the code may no longer be valid.  If you buy a secondhand textbook, any code supplied with it is probably not valid.  In either case, you can purchase a Student Access Code online using a credit card or you can go to the bookstore and buy a mastering physics package.  If you need help then click on the ? icon.  There are more detailed Mastering Physics registration instructions at   Listed here are links where other important aspects of the course are described.  Please go to these links and read their contents.

For problems with MP, you can go to