Physics 121b Information and Help page.

Download Adobe Acrobat Reader

Class information

Your grade for the lecture portion of the course will consist of:

The lecture portion is 80% of your whole grade and the lab is 20%.

Office hours will be on the 9th floor of Stevenson. I can be found in either SC6906 (my office) or (usually) SC6924 (the Johns/Sheldon/Webster Lab area).

The official class rooms are.

The final will be in the lecture classroom. Here is a link to the Registrar's final exam schedule for all classes.

We will be using Halliday and Resnick: "Fundamentals of Physics" 10th Extended version.

You may find an extended version of the class contract here .

Preliminary Lectures/Schedule


Lecture 1: Jan 6
Ch 21: Conservation of Charge, Forces from charges

Lecture 2: Jan 8
Ch 22: Electric Fields, Lines

Lecture 3: Jan 13
Ch 23: Flux, Gauss Law

Lecture 4: Jan 15
Ch 24: Potential Energy, Electric Potential

(Last day to drop Jan 19)

Lecture 5: Jan 20
Ch 25: Capacitance

Lecture 6: Jan 22
Ch 26: Drift Velocity, Conductivity

Lecture 7: Jan 27
Ch 26/27: Resistors and circuits

Lecture 8: Jan 29
Ch 28: Magnetic Fields, Force on charges

Test 1: Feb 3. Covers material through Jan 20 

Lecture 9:  Feb 5
Ch 29: Coils, Loops, Solenoids

Lecture 10: Feb 10
Ch 30: Induced EMF

Lecture 11: Feb 12
Ch 30/31: Inductance

Lecture 12: Feb 17
Ch 33: Travelling Waves, EM Waves

Lecture 13: Feb 19
Ch 33: Polarization, Index of Refraction

Test 2: Feb 24. Covers material up to Feb 12

Lecture 14: Feb 26
Ch 34: Index of Refraction, Images

Lecture 15: Mar 10
Ch 34: Lenses, Application of Lens Equation

Lecture 16: Mar 12
Ch 35: Interference, Diffraction

(Last day to withdraw Mar 13)

Lecture 19: Mar 17
Ch 36: Diffraction Grating, Rayleigh Criterion

Lecture 20: Mar 19
Ch 37: Relativity, time dilation/length contraction, energy

Lecture 21: Mar 24
Ch 38: Quanta, Blackbody Radiation, Photoelectric effect

Lecture 22: Mar 26
Ch 38: DeBroglie waves, Schrodinger equation, Uncertainty principle

Test 3 Mar 31 Covers material through Mar 17

Lecture 23: Apr 2
Ch 39: Bohr Model, Wave functions, Hydrogen

Lecture 24: Apr 7
Ch 40: Spin, Quantum applications, Periodic Table

Lecture 25: Apr 9
Ch 41: Conductivity revisited

Lecture 26: Apr 14
Ch 42/43: Decays, Fission/Fusion

Lecture 27: Apr 16 
Ch 44: Quarks/Big Bang

Final Exam:  Comprehensive, mandatory

Extra Test Info

Extra Study materials. lecture notes, old tests For tests in 121b, you will want to examine material from this page.

Additionally, here is the 1st exam I gave last year. Notice the included equation sheet. I was not planning to have resistors on your exam, but we can discuss it.

Equation Sheet For the second test.

Equation Sheet For the third test.

WebAssign (Homework) Info

We'll be doing most homeworks on the computer this semester. The computer package we'll be using is called WebAssign. You can get to their info page by clicking on the link below.

Here are the solutions. Some of them may likely be from the 7th edition of your book and I recycled them in Webassign...and also in the solutions.<\p>

Pre resistors practice exam Please enter responses in Webassign. Make a note of the due date in Webassign as well.

Pre resistors practice exam solutions Solutions

1st challenge Problem set Due Sunday Feb 1.

Challenge Problem Set 1 solutions Supplementary Problem set 1 solutions

HW 1 key. .

HW 2 key. .

HW 3 key. .

HW 4 key. .

HW 5 key. .

HW 6 key. .

2nd challenge Problem set Due Sunday Feb 22.i I will post solutions on Monday.

2nd challenge Problem set solutions and here as an excel spreadsheet of my fit spreadsheet

Practice test 2 Practice test 2 (can enter and check answers in Webassign until 1pm on Sunday, I will post solutions on Monday. Note: Resistors will be on your exam.)

Practice test 2 solutions

HW 7 key. .

HW 8 key. .

HW 9 key. .

HW 10 key. .

HW 11 key. .

HW 12 key. . The problem labels are jumbled, but the info is in there!

3rd challenge Problem set Due Sunday March 29th.

3rd challenge Problem set solutions.

Practice test 3 Practice test 3 (Can enter and check answers in Webassign. Need to turn in to get credit for the lens diagram.I will post solutions on Monday. Note: Relativity will NOT be on your exam.)

Practice test 3 key. .

4th challenge Problem set Due Sunday April 19th.

4th challenge Problem set key.

Practice final This is just to give you an idea of what I intend the final to be like.

Practice final solutions Don't look at these until you've given the practice final a try.

Web Assign Info Page

Additionally I may hand out a problem or 2 each week for you to turn in. I expect to see all steps completely worked out in these problems and I will grade these myself to get an idea of how you are doing.

Tests additional Info