Physics 231 -- Fall 2009 
 Experimental Physics I 

Greetings and welcome to the home page for Physics 231: Experimental Physics I


Taught by Dr. Don Smith
Office: Frank 234B; 336-316-2162
Course meets: M: 14:30-17:30, Frank 220


The syllabus contains much more information about the course. Please read it carefully.


Note: The following table was initially constructed before the semester began, assuming two weeks per experiment. You are allowed, when you pick your experiment, to slide the due date to a week later. Consider the due dates below to be tentative until the name of the experiment appears in the final column instead of a number. Once the name appears in that last column, I will consider the date in the first column to be the due date. Extensions will not be granted on the day of the presentation, but may be requested up until the previous day.

Class Schedule
WeekDatePresenter PartnersExperiment
124 Aug
Introduction
231 Aug
Statistics/PowerPoint
307 Sep12Poisson Spot
314 Sep34,5Wavelength of Laser
414 Sep78Microwave Interference
628 Sep13Magnetic Torque
Fall Break
926 Oct47Magnetic Force
1109 Nov37q/m of e-
1109 Nov51Stefan's Law
1109 Nov24,8Latent Heat of Fusion
1323 Nov73Absolute Zero
1323 Nov23,8Magnetic Torque
1323 Nov57Impedance of Light Bulb
1430 Nov17Young's Modulus
1430 Nov34Conservation of Angular Momentum
1430 Nov41QW TBD
1507 Dec81Hydrogen Spectrum
Student Number Key
1Graham
2Adam
3Mikhail
4Maggie
5William
7Axel
8Anna


Experiment List
MechanicsThermodynamics E and M Quantum WorldLight
Group Speed of Sound (1) Boyle's Law (1) Magnetic Force (1) q/m ratio of e- (1) Wavelength of Laser (1)
Consv. of Ang. Momentum (1) Absolute Zero (1) Current Into Heat (2) Hydrogen Spectrum (2) Index of Refraction of Prism (2)
Young's Modulus of Steel (2) Heat of Fusion of Ice (2) Magnetic Moment (2) Millikan Oil Drop (2) Index of Refraction of Air (2)
Mechanical Resonance (2) Stefan's Law (3) Mag. Susceptibility of Aluminum (3) Compton Scattering (2) Speed of Light (3)
Classical Scattering (3) Work Into Heat
(and User Manual) (2)
Impedence of a Light Bulb (1) Frank-Hertz Experiment (3) Microwave Interferometer (1)
Ultrasonic Interference (1) Newton's Law of Cooling (2) Curie Temperature of Fe/Ni (1) Brownian Motion (3) Spectrum of the Sun (2)
Dispersion relation (1) Half-life of Potassium 40 (2) Index of Refraction of water (1)
Water Drop Chaos (1) Flourescence (2)? Poisson Spot (2)

The numbers represent my best guess as to how much work will be involved in doing the experiment. (1) means a lot of work, (2) means even more work than a lot of work, and (3) means I think you'll find it very challenging. :-) You might want to try to find a balance.

Note that Magnetic Force, Magnetic Moment, and Susceptibility of Aluminum are all fairly similar. You might wish to only do one of these, to have a wider range of experience. Or you might want to delve deeper into a similar topic, in which case start with Magnetic Force and go to one of the other two.

Other ideas:

There are some other experiments we might be able to pull together, if you are interested. That is, I've seen the equipment around, but I'm not sure if it's complete and/or functional. For Brownian Motion, I would need to find out if the biology department has the microscope we would need. If you really want to do one of these, talk to me and we'll see if we can't make it work...

  1. Faraday's Law (EM)
  2. B field of a solenoid (EM)
  • Zeeman effect (QW)
  • X-ray diffraction (QW)
  • Cavendish experiment (M)
  • Blackbody Spectrum (Th)
  • Photoelectric Effect (QW)
  • Global warming in a bottle (Th)
  • Vacuum Cannon (M)
  • Optical Tweezers (L)

There are a lot of other experiment ideas in the journals "The Physics Teacher" and "The American Journal of Physics". You can peruse back issues in my office or online, if you want to see more options. If you want to do an experiment for which we do not have the equipment, you can write a short proposal to the department, and we have several thousand dollars available through alumni donations to support student research ideas. We can make it happen.


You should read this article on how to give good presentations.

If there aren't any lab notebook sheets on the door, you can get one here.

Also, here's my Tips on giving good PowerPoint presentations file. It has a rubric for evaluating talks in it, as well as examples of good and bad slides.


Here are some links to other schools' advanced lab web sites. They may be useful to you, in terms of practical advice, historical background, conceptual support, and/or challenging questions to think about. Many of them may be for more advanced experiments than we will do in this course: keep them in mind for 232 or higher. You could also use google to search for Intermediate lab sites. If you find any useful sites at other schools, please let me know so I can include them here.

If you do use any of these materials, make sure you cite them in your presentation.