||Seth Major, smajor, 4919, G064
Tuesday 1:30 - ~5:00 PM
Mondays 2 - 4
MWF 10:00-10:50 AM Science Center G041
Halliday, Resnick, Walker, Fundamentals of Physics Extended, 10th Edition (same as Phys 190)
John Taylor, An Introduction to Error Analysis
Kleppner & Kolenkow (now on blackboard) and Simmons reading coming soon!
Tuesday afternoons 1:00 -~4:00 PM with Charles Collett in G030 or nearby lab
Wednesday afternoons 1:00 -~4:00 PM with Viva Horowitz in G030 or nearby lab
Thursday afternoons 1:00 - ~4:00 PM with Adam Lark in G030 or nearby lab
- Have a great spring break!
- Guide 8 and Guide 6 and 7 solutions are posted.
- The 2018 "Official 195 Measurement of g" is g = 9.818 +-0.005 m/s^2.
Weekly Guides (pdf):
- Clicker questions from lecture.
- The 3D electric field line viewer: Download from here.
- Phet Electric Hockey!
- The Doppler shift for light is used in astronomy. Here is an illustration and info on red and blue shifts. The effect is one technique for finding extra solar planets. More on the use of the relativistic frequency (Doppler) shift to find an exoplanet near 51 Pegasus. This technique is lso used to explore the structure of the universe. A page summarizing much more detail on this.
- The Doppler effect at a train station and as a costume on Big Bang Theory.
- An applet demonstrating the Doppler effect for sound (requires java).
- There's a Chladni plate picture in the banner of this web page. Wikipedia has more on Ernst and his plates. Here's a page of his notebooks! Of course, YouTube has Chladni plate videos and there's a 2D flaming (!) demonstration shown in this video.
- Here is the Phet simulation of interference.
- Here's the article by Mayo on the energy of waves at sea. For more on ocean waves try this link.
- Animations of different types of wave motions.
- Here's the derivation of the equation of motion for sound.
- The results are in! The 2018 measurement for g on the Hill is g = 9.818 +-0.005 m/s^2! (This agrees with the previous average of 9.815 m/s^2 but disagrees with last year's result of 9.800 +/- 0.007 m/s^2. Given the variation in measurements I used the standard deviation of your results for the error.)
- The Citicorp Center in NYC and the Taipei 101 Tower have tuned mass dampers. Here's a pendulum in the Taipei 101 Tower. For more specifics see this article and "Wind and Earthquake Resistant Buildings", some of which is on google books.
- Here's the PhET wave simulation.
- Here's the PhET normal mode simulation.
- A reconstruction of the black hole merger event that led to the gravitational wave discovery in 2015. The founders of the experiment won the 2017 Nobel Prize in Physics.
- More on waves in spacetime: LIGO, interviews with gravity wave folks,
and movies of numerical simulations of black hole binary systems.
- The masses on springs videos: 1 and 2.
- Here is the Phet simulator on resonance.
- A resonator exhibit at the Exploratorium.
- A video of a wine glass orchestra or harp
- You can see more of the Tacoma Narrows bridge in this video.There's a 2006 American Journal of Physics article by Green and Unruh on a more careful modeling of the Tacoma Narrows bridge. (This link is to the arXiv where many phsyics papers are availabel without charge.) Last year APS News published a piece on this and the authors reminded us that the original accident report pointed out the non-resonant behavior of the bridge.
- Fun can be had exciting the different modes of a suspension bridge. Here's an example at Messiah College.
- Check out this comic on resonance.
- Millennium Bridge oscillation video. See also a BCC program on this
- In class on Monday, February 5 we went through the `late time' or `steady state' solution of driven, damped, harmonic motion. Here are the notes (pdf).
- For a review of rotational dynamics see Chapter 10 of HRW.
- Galileo may have timed the swinging of the chandeliers in the Pisa cathedral. A picture of the ones installed in 1587, at History of Science at UO.
- Here is the PhET spring mass-on-a-spring demo. (Updated link) Enjoy!
Last modified 12 March 2018