TV

I don't know if you guys know, but Mythbusters is like the greatest example of the physics we are learning in class. Whenever I watch I see some projectile motion, pressure, circular motion, or some thing we learned and I say to myself "I learned that stuff!" I didn't know what to write for this week, that had to do with electrostatics, until I saw Mythbusters. They were trying to see if a magnet could pull a bullet out of the air after it has been shot. So they put like 10 of the strongest magnets in a line and shot over it, but the bullet only deviated a little bit. Seeing that the bullet was pulled down, it reminded me of the test charge and the electric fields we did in that one lab. As each magnet acted on the bullet, and acted like an electron on a positive test charge and pulled it in, but the electric field must have been weak because the bullet was only pulled a little bit. You could also calculate the projectile motion and force and all that stuff, which is what they take into account when experimenting. That is why Mythbusters is a Physics' blog dream. You can expect to here more from them laters.

These dudes are Physics GOLD.

Electrostaticity

I know that theseblogs are supposed to be about Physics in everyday life, but when I first thought of electrostatic in my life I didn't know what to think of. Plus, doc said that this is the hardest chapter, so I am not looking forward to it. The only thing that I can think of is magnets. Magnetics have electric charge right? That's why magents stick on refrigerators and are put in generators for power. Somewhere in my house I also have a shocking pen, that transfers a charge into the person that clicks it, which I think is electric. Plus batteries have charges, because they have the positive and negative sides that have the flow of electrons that produce a charge. I was just thinking...what would happen if you put a magnet on a battery? I don't know. But sometimes on TV people put there tongue on the battery and get shocked. I don't think that's true, but I don't want to try it. Hopefully we will learn some of this stuff in our labs (i need a better lab group). I just read the ebook, and printers are charged too.

Pool

Okay, I totally forgot about my physics blog until right now... Anyways a couple weeks back my family went to Hawaiian Brians for a winter break celebration. In case you don't know, Hawaiian Brians is a billiard hall by the Hawaii Convention Center. I also have a pool table in my basement so I thought I'd write about pool. A while back we studied collisions, remember? Anyways, there are two kinds of collisions, ellastic, and inellastic. Billiards deals with a bunch of ellastic collisions, as the balls bounce all over the place and collide with each other. If a ball hits a ball straight on, as we learned, they will move in a linear path. But if the ball hit the side, one will deflect 90 degrees from the other. An inellastic collision might happen if the ball is spinning or sticks, but doesn't happen in pool most of the time. This reminds me of an episode of Drake&Josh, yeah, where Josh played pool super good since he used physics or something. When I first saw that episode I thought he was a fat nerd who got lucky at pool, but now I see that that fat nerd is me, only I'm not as good at physics. Whatever, pool is lame anyways, ping pong is for real winners.

Thermodynamics in da House

I was thinking of something to do for my blog about therodynamics and all that, but I couldn't think of anything good so I just took a picture of some examples of thermodynamics in my house. The first thing is a toaster, since the wires on the sides of the toaster heat up, but they don't come in contact with the bread, it just transfers its heat through the air between the two, and that is what makes bread into crispy toast, conduction. Next was a lighter. I didn't know exactlty what it had to do with thermodynamics, but I know it produces fire. So since fire radiates heat, that is physics too. The last one is a thermos, and we talked about it in class, that insulates heat by seperating the inner and outer wall of the cup by air, or maybe even a vacum. Since there would be no air in a vacum, it wouldn't be able to transfer heat, so the coffee or whatever in the thermos would be close to adiabatic, but of course it will lose heat eventually, because if you leave out a thermos of hot coffee, it gets cold so sometimes physics is different in theory than real life. My thoughts on these chapters is that we read a lot of stuff in the eBook, but in class we only talk about PV diagrams, so I don't know anything about specific heat and all that, so I can't do the homework problems...just saying. Maybe next year Steelers...

New Year's Physics

Well, two days ago was New Year's Eve, so of course I'm going to write about fireworks. First of all, me and my cousins did fireworks at their house in Waipahu, so there were a lot of those aeriel fireworks, which have projectile motion. Those fireworks need a lot of force from their explosions to propel them up, and since they go so quick it must be faster than gravity can effect them. Not only gravity, but air resistance too. That is why most bottle rockets or whatever are shaped like cones or 3D arrows, know what I'm saying, or else the thing would explode right over someones head. I didn't do any of those fireworks, I stuck to the ground ones, but there was this tank one, where the tank is on wheels and is propelled forward by a flare, which is almost exaclty like the aeriels, except it has to fight friction and it is legal. Overall, I didn't do much fireworks, since I had to get up at 6 the next day...And school starts again in two days, Isn't that great? Go Steelers!!! (hopefully not the last week I'll get to put this on my blog)

Can you guess which ones I took myself and which one I got from Google?