SHOPPING!

On friday, i went shopping with my grandma and mom at coach because she had a 25% off coupon off of everything in the store. So i bought graduation gifts and stuff and when we were paying, just happened to look down and see the reflection of the coach sign on the wall in back of the cash register on the glass sheet covering the computer screen for the cash-register. The light from the letters were reflected from the glass and then went to my eyes so i could see the reflection. Also, you can see the lady's head in the glass too. The same thing is happening to the light from her head that is being reflected. This is the same situation as the Ambulance picture Mr. Kohara showed us in class, and that is posted on the homepage.

Tokyo Dome Amusement Park

        On our second to the last day in Japan, we went to the Tokyo dome. In the area of the dome, there was a small amusement park that had about 4 rides. (three are pictured) the ferris wheel, the roller-coaster and the one that drops. The ferris wheel has centripetal force as it is going around and as you move around the whole thing, different forces are acting upon it. For the roller-coaster, energy is constantly being transferred from kinetic energy to potential energy and back to kinetic energy. It also is changing its velocity as the ride proceeds. As for the last ride, gravity and mg is used to pull the carts down. In addition, it is being secured by ropes which cause tension and creates a pulley. 

Japan= trains, trains and more trains

This spring break i went to Japan! in Japan, everybody uses trains and subways as their mode of transportation. Most of the time the trains are realllly crowded so you have to stand up and hold onto the handles (shown in the above picture). The reason why they have to hold on is all physics. Due to inertia, when the trains starts and stops, your body is wanting to either stay still or keep moving therefore your balance is thrown off. That is why you would need to hold onto something. Also, the trains in japan are powered electrically and magnetically. 

What's my electricity bill??

sorry idk how to rotate it on this haha

Punahou Carnival

On friday February 6 2009, my friends and I went to Punahou Carnival. At the carnival, there was tons and tons of physics everywhere! From the rides to the lights and all the electrons flowing through all the wires! 

On the ferris wheel, there is so much physics going on! First, depending on which thing you're in, your potential energy and kinetic energy changes as you go around. Also, it is going in a circular motion there for centripetal force is being applied.

On the Pharaoh's Fury, it is also experiencing centripetal motion, however it isn't a full circle. The kinetic and potential energy as well is constantly changing. 

And the same goes for the last ride. the force of Gravity is pulling the people on the ride down converting its potential energy into kinetic energy and vice versa.

17th Birthday Party!

Today I had my 17th birthday party. We had a slip and slide and i thought that it was alllllll physics! the pictures are backwards but you can see as my friend, kira sasaki gains speed by running then launches herself onto the slip and slide. And due to the slippery surface of the plastic slip and slide, it's a "frictionless" surface. That's why in the picture on the top, she runs into her sister, Alyssa and stops due to the friction from the grass and from the collision with her sister. 

City Lights =)

In December, i went to City hall with two of my best friends, Marissa Yamamoto, who is currently attending the University of California in Davis and Steph Chun. of course during christmas time, there are christmas lights EVERYWHERE. In this picture there are mini ones on the trunk of the trees and giant ones hanging on the trees. If you look closely, you can see electric fields surrounded the lights. Not only do christmas lights have this electric field, all lights have it as well. There are also electric currents on other objects where we cant see them.