Phryday

I am sure everyone noticed that I was one step away from death (and not a cool, roguish anime-inspired Death), but hopefully, the day ran smoothly from your point of view...

B Block conducted their Pendulum Periods lab, which allowed folks to verify that the driving force in determining the period of a simple pendulum was length. Acceleration due to gravity is also a player, but that is not a variable factor as long as you keep the pendulum in a single location. Vary the location and you would have to factor in the new value for g. Actually, the simple pendulum can (per your experiment's Extension) be used to determine g for a location/altitude and has been used historically for that purpose. We'll talk about the lab on Monday and continue on with our discussion about basic properties of vibrations and waves.

C Block started their Pendulum Periods lab, since I stole their lab block by being a pathetic sick person on Thursday. Folks did a great job of jumping in and getting data collected and most groups are ready to start the data analysis/graph creation in class on Monday.

E and F Blocks had to suffer lectures on vibration and wave properties and there will be more of the same on Monday. Pay attention to this chapter, though, because when we hit the next four chapters on sound and light, these basic ideas will wind through them and you are expected to be an expert on these basic ideas while we layer on specifics that you will need to master as well.

Have a great weekend!