so this weekend was super good:) and super long:) so yeah
obviously i forgot about my physics journal until 11:30 before its due at 12 so yah i didn't get any pictures:/ my badd...but i am thinking about physics right now and going to right my journal..so yeah we use physics everyday. like my drive home from my basketball game tonight. i could step on the pedal harder to make my car accelerate more or i could hold the pedal down at a certain height and the car would keep a constant velocity. i could read my speedometer that could tell me my instantaneous velocity (velocity at that exact moment in time) and yah. then i wanted to bump my music louder so i turned the knob on my car's volume meter and my car began to make more noise. this is relevant to the stuff we're learning now. that knob is a variable resister. i'm guessing that some how inside my car's radio that knob allows for me to make it have less resistance and cause electrons to flow through faster causing the volume to increase!!! and then the opposite way around if i turned the knob counterclockwise...chii...pretty good

this weekend i didn't do much:/
but i did watch some episodes of Jackass on my television..they were pretty funny b/c they do some dumb stuff. in one of the stunts some of the members of Jackass wrapped one of their male body parts in tin foil and made a tip at the end. they then proceeded to stick the pointy tip of the foil into an electrical outlit. it was super funny to watch their reactions and stuff. i could imagine that it hurt A LOT!! or went numb and felt really weird or something. well the physics in this is electrons being transfered. the equations are F= kQq/r^2 as well as E = f/q = kQ/r^2. the amount of voltage coming out is PE/charge. so its 1 joule/1 columb so sometimes it isn't that bad to get shocked.. if the ratio has a big denominator. but if it has a small denominator chances are the voltage will be pretty high and the shock could be deadly or do a lot of damage. sorry i do not have a picture for this journal.lol

so i jus put this picture up for fun...haha
and cuz i didn't have any other pictures to put up...but i shall explain some static electricity stuff that happens in my everyday life.. so everyone know that on the weekend iolani student are supposed to do homework and stuff,,, but i dont' really like to do that..most of the time. so normally my parents go out and do errands and stuff and they say, "gavin, be productive and study." and i say, "okay see ya" once they leave i do all sorts of stuff. play games, watch tv, watch movies, lift, and so on..but i noticed that whenever i watched tv there would be static electricity on the screen i think. so when i was younger and didn't know better my mom could come home and feel the tv and be like, " hey you were watching tv! grrr!" but i've learned since that and now i wipe the tv screen before my parents come home. i'm guessing what happens is that some how the tv screen is charged and when i wipe it down i ground it so that no more static electricity is left on the screen...of course i don't do it now because my mom really doesn't care. and most weekends i'm out of the house most of the time. so yeah. there is also static electricity when i comb my hair sometimes.

one weekend..a long time ago i think..erika took this picture of me doing a lame front flipthis was located at china walls.. it was the only picture i could find already on my computer and couldn't get anymore because i don't have a camera at the momment but yeah...theres some torque in this picture. so when i ran and jumped my foot applied a force on the ledge of the wall causing my boday to rotate in the air. the center of rotation is probably near my belly button or yeah some where around there...the lever arm is from the force to the point of rotation so from my foot to my belly button about...yup with enough torque and force in my jump i was able to complete a flip...when i got into the air i tucked my legs kind of...i'm not sure what physics terms it is but because i tucked my feet in closer to the center of rotation i began to rotate faster and fully get over and complete the flip..i think i might have over rotated and landed on my face this one!! haha
ouchi...lol thats like courtny's last name! haha w/e

kay...so this evening my dad and me decided to do my physics journal...lol
so we decided that we should do a belly bump (or should i say Ab collision). so first to make it interesting we weighed ourselves on my scale. you may not be able to see it that well but my dad weighs 143 pounds and i weigh 131.6 pounds. then we lined up, my mom focused the camera and we jumped into the air thrusting our bellies(abs) into each other. it was a success!! and it was supper funny!! but i saw that my dad moved backwards as i moved forward. this is related to physics b/c of momentum and impulse. our momentums were obviously different
b/c my dad went back as i went forward but our impulses were the same...even tho i had a smaller mass than my dad, my velocity was greater causing me to have a bigger momentum. P= m x V thats why
if i had a bigger velocity but a small mass i was able to counter act my dads bigger mass and smaller velocity. THIS LAB WAS FUNNY...

This summer my friends and I went to maunawili falls in Kailua. This is a natural water fall where you can jump off into a pretty deep pond. First we had to hike into the trail and finally we found it by following the stream up the mountain. It was tons of fun. Okay so when you get there you can jump off from different heights ranging from 40 to 10 feet. I went to the top one. When i was standing on the rocks i had all potential energy and no kinetic energy. Once my foot left the cliff and i jumped out toward the pond i began to lose potential energy and gain kinetic energy. there was no energy lost but it was being transfered from potential to kinetic energy. The equation for kinetic energy is KE=1/2mv^2 and the equation for potential energy is PE=mgh.