Last Blog!

Wow, I still can't believe that AP physics has come to an end. This year has passed so fast, its ridiculous! I still remember buying the book and thinking to myself...how are we gonna finish more than 1200 pages in less than a school year?! but we have now reached the end of our long journey of suffering and despair after failing our fair share of tests and quizzes. But yet, I do feel pretty accomplished because I did learn a whole lot about physics, and at times, class was actually pretty fun. Since its my last blog, I wanted to make a small list of memorable moments over the course of the year..

1) "You guys are crazy to be here...You guys are gonna suffer" (something along those lines) - Doc, on the first day of school
2) The massive ice crunching sounds I hear everyday
3) Making beats and singing songs with my buddy Adam in class (96 degrees in the shade, I do my thing, cool down, billionaire, replay)
4) Me and clint trying to harmonize even though it wouldn't work most of the time
5) Adam's ridiculous Kelly and Meatloaf jokes...example: "Do you like to eat meat loaf?"
6) Faceboard...A drawing of Meatloaf with guns, but not even close to the size of clint's biceps
7) Clint punching Adam in the face after a fight that I taped in the courtyard...Adam got licked, which was evident through his black eye (Kelli believed my whole story too)
8) Clint almost killing Elliot for taking his lucky seat
9) Adam and his recorder...playing the same songs over and over again...doc complaining of sound pollution
10) "Check the band spacing!" -Adam (seeing Adam sitting on the side doing nothing during labs)
11) "Can you invite me to your wedding when you and Cassie get married?!" -Kelli
12) Clint's blog: "Colin Tseng joined the group: Too Chinese fo Skoo"
13) Jamie and her supposedly huge flock of guys: Jon Wong, Jordan Tottori, Matt Lum, Adrian Catalan
14) Daniel's analogy of hanging mass and tension to represent the forces on Jamie
15) The scheduled fights: Elliot vs. Tara, Daniel vs. Jamie, etc.
16) Kelli responding to Adam's, "What did you do on Sunday?" with, "What did YOU do on Sunday? KENDRA?!"
17) Going to the snack bar whenever
18) Last but not least!...me and doc's fist bump at the orchestra concert.

There's a probably a lot more stuff but I can't remember right now. Good luck on the AP exam everyone!



Ash, Dyl, Ian, and me's intense study sesh at kahala.

2nd to last physics blog?!

Since we had an orchestra concert this weekend, I wanted to talk about sound waves and accoustics. We rented out Mamiya theater for our concert because it had better accoustics than lower gym or seto hall. Engineers specifically design these concert halls to direct the most crisp sound to the audience. In some places, the sound may seem distorted or muffled, which is caused by destructive interference of sound. Anyway, I can't believe it is already the last week of physics class. It's crazy how fast this year has passed. It felt like yesterday writing my first blog and thinking that I could never survive this class cause I started with a 75 or something on my first kinematics test that everyone thought was one of the easiest tests of the year. But yet, here I am, preparing for the AP test, and failing 3 out of every 4 quizzes that I take. I've actually been studying, but it doesn't seem to help that much. Ahh, well, good times this weekend. Got a fist bump from doc on saturday at the orchestra concert. That officially makes yesterday, may 1st, 2010, the best day of my life.

Snoop Dog, Baby

Snoop Dog, Baby. It's a good song by Reel Big Fish. Crazy game last night. Umlauft is so beast. It felt like everything came on one day. There was kokua festival, the UH game, my brother's birthday, and our vball game against punahou. I really don't know what I'm gonna write about, but hopefully i'll find something by the end of this blog. I'm listening to some pepper right now. I wish I couldve gone to their concert on friday at UH when they played with tribal seeds. I'ts a nice day today. nice and sunny. Maybe I'll go play some tennis with my brother. Oh, I can't wait till summer. That reminds me. I get to fly to new york to see my sister's graduation. There, I got something to talk about. The physics of airplanes. The reason it is able to fly and get off the ground is because of a concept called lift. Due to the Coanda effect, which is the tendency of a fluid to stick to a surface that it is flowing over, the air follows the surface of the wing of the plane as it bends downwards, which causes a lower pressure zone above the wing. To bend the air downward, the wing has to exert a force on the air. This is Newton's first law. And because of Newton's third law, this causes an equal opposite reaction and thus, the air exerts an upward force on the wing. This causes lift. The more the wing is tilted, the more lift results.

Mahna Mahna

Mahna mahna. It's a good song by cake. check it out. It's been a pretty crazy weekend. I'm pretty exhausted from working for the food committee and then working for the malasada booth yesterday. I got last shift so I had to wash all these trays and dishes with some other cool people until almost midnight. All I remember was that daniel was having too much fun with the water spray. Anyway, it was pretty fun making malasada jams with Jaren and Kaitlyn. We used a couple cool songs and changed the lyrics to make malasada jams. Heres one of them from the song "I like big butts that cannot lie, you other brothas can't deny," except we changed it to,
I like malasadas and I cannot lie, you other brothas can't deny,
WIth the cinnamon buns and the sugary crumbs,
You can put two thumbs, UP!
Oh man, that's so beast. we did some a milli remixes and one day remixes too.
Other than that, just wanted to say thanks to doc who saved me 15 dollars. I was insulted by his comment though because he doesn't think that I will even touch the review sheet. I'll show him! Junk thing is that I still need to find a way to get myself to start...So onto some physics. I was playing baseball with a couple friends using this plastic ball and a huge inflatable bat. My friend hit the ball onto the roof and that reminded me of one of those baseball problems that we did for projectile motion. In fact, I found it. It's homework problem number 14.5 in chapter 4. To solve this problem, you use vectors and solve for the speed of the ball at contact with the bat by solving for the time in the x direction and then substituting t into the equation delta(y)=Vt-1/2gt^2. Ooo man, I just started my review! Baseball problems also use concepts such as impulse and the change in momentum of collisions.

magnifying glasses

Yo! I know we've been doing photoelectric effect and all that quantum physics stuff, but I'm gonna talk about magnifying glasses cause I finally really understand how they work. Magnifying glasses use a convex lens or a converging lens to make the virtual image that you see. In lenses, the virtual image is on the same side as the object, and in a convex lens, if the distance from the object to the lens is less than the distance from the lens to its focus, a virtual image that is larger than the object is formed. As a result, you see a magnification of the words that you may be reading. However, if the distance from the object to the lens is more than the distance from the lens to its focus, a smaller, inverted, real image is formed. That explains why you have to hold the magnifying glass at a certain distance for its desired effect.

Bubbles

Hey everyone, hows the weekend going? Hope everyone had a good good friday. I sure did. Played some ping pong and some tennis. Ok, so the other day, I helped my brother wash his car. Ever since I was little, I've always wondered why I saw such an assortment of colors on those thin bubbles from soap. After this chapter about interference, I now know why. Since the thin bubble is an example of thin-film, I can talk about thin-film interference. Some light reflects off the surface of the bubble, and other light rays reflect off the inside of the bubble. Since the light ray is entering a heavier medium with a larger index of refraction, it causes the light ray to experience a 180 degree phase change. As a result, when the light rays interfere at this area, there is destructive interference, and I see dark spots. However, at other places, when the phase difference of the light waves are zero or multiples of 360 degrees, the troughs and crests of each light wave match with the troughs and crests of other waves, causing constructive interference. Thus, I see bright spots on the bubble. At these brights spots, I can see an assortment of colors because it depends on the fringe number. At different fringe numbers, the light waves have different wavelengths, so I could see many different colors on the bubble.

Mean da optics!

Ok, so I am doing my blog now because I figured that I would forget to do my blog when I come back home from San Diego on a secret mission to save the president with my boy clint. Unfortunately, we can't tell you what our mission is because we are supposed to keep it on the DL. But anyway, yeah, this blog is for this weekend. I'm not writing this just for fun on a random wednesday. Ok, so we have been doing optics and lenses these couple days and the past week so I figured that I'll talk about glasses and contacts. I am near-sighted and I can't see the board (without glasses, I squint, which makes people tell me to open my eyes) so I went to the doctor to get a prescription so I can get glasses or contacts to avoid some humiliation. The other day, when I was putting my contacts on, I noticed that the contacts are shaped like a concave lens, which allows light rays to pass through and travel through the focus point. The focus point would then be aligned with my retina so that I can now see farther objects clearly.



whoooaa check out these color contancts!