Shoe’s Physics Page
Mechanicsburg Area High School
(Disclaimer: This is super simple…that also means it’s easier for me to edit!!!)
Join code (Google Meet in the masdstudent account) meet.google.com/kch-dnyj-mjz
*note* I will need to cancel the office hour on Tuesday May 12 due to an appointment to finalize my clearances to continue teaching. If assistance is needed, send me an email on Monday May 11, and/or Wednesday May 13 to arrange a meeting/phone call, etc. Thank you for your understanding.
I’m near my computer most of the time. Send an email or text during any other time.
The tests from the past make great sources for additional practice problems.
ð Everyone is expected to enroll google classroom (You can do that by clicking the link below for your class, then enter the class code. If you have problems, shoot me an email)
o Level I Class code iu47nfs
o Level II Class code yc5w3bp
o AP Physics Class Code nwcf5an
ð Office hours: I will be available in Google Hangouts during the times below. Log into you MASDSTUDENT account, open hangouts, and send me a message.
o Mondays 10am-11am
o Tuesdays 1pm-2pm
o Thursday 3pm-4pm
Other times “by appointment.” Send me an email if you have questions and
we’ll figure out a time that works!
Below are some links that may be interesting, and relate to physics
o Here is a unique one for The AP class, yet anyone can look at it. Faraday’s Law It’s a PHET sim.
§ (Cassette Tape Head)E&M is tough to wrap your head around, but it makes more sense with practical applications. I found a YouTube video that does some really neat demos with cassette tape play/record heads. The downside is that there is little to no explanation of what is going on or why it works. I would like to take the YouTube video and so some audio over-dub and text overlay, but the computer we have in the house is currently keeping the “Storage Unit Tennant Insurance” world up and running (not really, but at least a part of that business sector). So, I hope you know what a cassette tape is, or at least recordable magnetic tape. For computer people, the magnetic covering on the tape is at least similar to the surface of a computer hard drive. The computer storage side is a little “easier” as it is just an “off-on” for the digital world…maybe not really, but could be that simple. The record head as a coil of wire inside. A changing current, analogous to the frequency of recorded music, goes through the coil creating a changing magnetic field. That magnetic field at a point in time “arranges” the magnetic media on the tape. As the tape is pull across the record head, the change in magnetic field from the coil is “stored” on the magnetic tape. During playback, the same thing happens, only in the other direction. The change in magnetic field on the tape induces a current in the coil in the “playback” head, which is then amplified and head as sound. In the video, the phone is used as an audio source. The tape head is then plugged into an amplifier, which is what you hear.
ð I will be posting things here that you may use to sort of “keep the physics thoughts” happening. All posts are good for all classes. Things should be review for everyone. Let me know if any links do not work by clicking here. Nothing is required, nothing will be graded.
o This is AP Physics/college board “stuff.” Click to see what’s going on. There is stuff here that will benefit everyone. I did watch a little that would work for Level I and Level II physics. I don’t expect to see the E&M stuff for the actual AP physics course. This might benefit you if you are taking other AP courses too.
o Thanks to James for sending this YouTube suggestion…Mark Rober was a NASA engineer.
§ This one is for everyone and will be talked about in class during our thermodynamics unit…The workings of a Watt Steam engine. This is the engine that powered the industrial revolution. I found a decent instructional video that also includes some science names you should be familiar with. I don’t like some of their unit use… I also found this really boring, but information packed “old” B&W video. It brings in Thermodynamics, and gives a simple explanation of Steam Engines, 4-stroke gasoline engines, and diesel engines.
§ This one is for those with a serious interest in piston engines. This is an episode of Leno’s Garage. Featured is a Merlin 1650-1 aircraft engine, similar to the engine that was used in the P-51 Mustang used in WWII. The 1650-1 indicates that it displaces 1650 cubic inches with a single super charger. For metric people, that is 27 liters!
§ Cats landing on their feet…I love this video. We’ve watched this video every year for years. Consider this a preview of rotational motion (3/25/2020)
§ “Smarter Every Day” about grain bins!!! What’s a grain bin? Farmers store grain. That’s not that exciting, but how they are built is interesting. I often wonder how some things are assembled, especially when they are high. Cranes seem like the logical answer, but cranes are expensive to put on site. This is interesting…
§ Mark Rober and a pool of Jello. Through the years, I’ve heard talk about this as a senior prank. I just had to watch it….Once again, its not really the pool of Jello that is interesting, but the issues and things they had to do to make it work!
§ This video justifies spending money on NASA. Especially with current events, he spends a message of hope.
§ This video seems like just pure fun…at first. Then, keep in mind momentum, and the rate of change of momentum. There is a connection with time. The greater the time of impact, the smaller the force. A very large trampoline was made with garage door springs (What else?!?!) and large objects are dropped onto the trampoline from high heights…. The “Real” message in this video is the design process. Enjoy. Just ignore the promotional stuff.
o “Smarter Every Day” video on pulley systems. I swear I just stumbled upon it today (3/19/20). There is a promotion at the end that looks interesting….but I am not promoting.
o Take this time to watch Apollo 13!!! (You had to expect this one…)
o Another good feature film “First Man.” It’s about Neal Armstrong.
§ For what it’s worth…RP-1 is Rocket Propellant Fuel. Check it out on Google… It’s basically kerosene, only refined a little more. I was checking it out on Google and found there is an RP-2, it’s just not used. Too expensive. Hydrogen makes a great fuel too, however, the hydrocarbon exhaust is more dense with RP-1, throwing more mass out of the nozzle. By conservation of momentum, there’s more push.
Level I Lab information
Level II Lab information