Shoe’s Physics Page
Mechanicsburg Area High School
(Disclaimer: This is super simple…that also means it’s
easier for me to edit!!!)
from the past make great sources for additional practice problems.
ð You may enroll google
classroom. I have not been updating classroom, but there may be some items from COVID that may be beneficial. (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
Level II Class code yc5w3bp
Physics Class Code nwcf5an
Below are some links that may be interesting, and relate to physics (This was created during COVID modified schedule.)
Here is a unique one for The AP class,
yet anyone can look at it. Faraday’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.
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.
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
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
§ 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
§ “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 sends 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.
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.
Take this time to watch Apollo 13!!! (You had to
expect this one…)
Another good feature film “First
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
Level II Lab