Lab Information & Resources
Syllabus  Fall 2009  Phys122L sect. 3 & 4.
If you need help, check my office or my lab (Workman 323 and 362 respectively). My Schedule.
Click for the Lab Schedule
If you are having trouble with physics, this may help  How to Study Physics
Grading Scale
 93100  A
 9092  A
 8789  B+
 8386  B
 8082  B
 7779  C+
 7377  C
 7072  C
 6769  D+
 6066  D
 059  F
Average Grade for those who turned in a lab report.
Lab 1 Geometrical Optics  Section 3 (8.9/10) Section 4 (8.1/10)
Lab 2 Oscilloscopes  Section 3 (9.1/10) Section 4 (8.7/10)
Lab 3 Electric Fields  Section 3 (8.3/10) Section 4 (8.1/10)
Lab 4 Capacitors (E.C. incl.)  Section 3 (10.2/10) Section 4 (8.1/10)
Here is an excellent web based XY plot generator. This would be a great tool for those of you who don't like playing around with Excel/Open Office to generate plots. These look better too!
Web Based XY Plot Maker
For this class the axis type should be set to linear in most cases.
Courtesy of Michael Johnston, School of Physics, University of New South Wales
If you use Linux, I highly recommend QTIPlot for making graphs.
Online LaTeX equation editorCheck out Texify for an online LaTeX equation editor, great for inputting equations as images on web pages.
These are a collection of resources for the physics 121/122 labs
Lab  Description  Link/Video 

Geometrical Optics lab  Question 7  Reflecting Telescopes 
Links  Look at the "Optical Design Software" section for some free/low cost ray tracing software. Optics Simulator in Java.  
Oscilloscopes  Basic operation and terminology.  Tectronix XYZ's of Oscilloscopes (pdf). 
Electric Fields  Tesla Coil 15ft tall, 50KW of power  
Class Data  Data and Analysis Procedure, Click Here  
Capacitors, Dielectrics, Induced Charge  Basic overview of concepts  Hyperphysics  Capacitors 
Electrical Circuits  Basic overview of concepts  Hyperphysics  Circuits 
Signal Attenuation and Amplification  Using the online plotting tool above, you should get something like this... Make sure you set the type of graph to exponential fit and set both x and y axis type to "log". 

Magnetic Forces  What is the strongest magnet known in the universe?  GSFC Question of the week 
Faraday's Law  This one can be confusing, so check out the supplement >  Faraday's Law Supplement 
Veleocity of EM Wave  Slowing light down with a Bose Einstein Condensate  Slow light in cool atoms  Nature 
Refraction, Dispersion and Polarization  
Interference and Diffraction  
Spectral Lines  What do we USE spectral lines for?  In astronomy, we classify star types, Star Classification 
Hubble Redshift Relation  Hubble's original paper  A Relation between Distance and Radial Velocity among ExtraGalactic Nebulae 
Waves and Resonance  This lab is no longer included, but still neat videos. 

Chladni Plates Vibrational Modes 

Ruben's Tube Wave motion in FIRE! 
Electric Field Mapping
Wednesday 2pm Results
Parallel Plate E Field (V/m)  Coaxial Cable E Field (V/m)  Line Charge Above Gound Plane E Field (V/m) 
100  140  50 
100  152  32 
96  160  36 
100  120  54 
100  156  52 
100  164  42 
Wed 6:30pm Lab Results
Parallel Plate E Field (V/m)  Coaxial Cable E Field (V/m)  Line Charge Above Gound Plane E Field (V/m) 
96  40  48 
96.2  23.3  34 
96  39.04  34 
96  36  46 
To calculate the Standard Deviation (in this case we use what is called the "Sample Standard Deviation")
use the following equation:
For a more complete explanation check out MathWorld.
Data Analysis for E Field Lab
 Find the average (for each of the 3 cases)
 Find the standard deviation (for each of the 3 cases) σ_{x} or "s" in the above equation
 Compare your value with the class average using percent error (for each of the 3 cases)
where b is your value and a is the class average (or accepted value).  For each of the 3 cases, does your value fall within ± 1σ, ± 2σ?
 Don't forget to make the E vs. distance graphs, sketches of the E field and answer the 3 questions!