These pictures are from the rehersals of out LCC performance. The backdrop is a white drape of fabric but it appears to be different colors depending on the lighting. The last picture is shot with only white light directed at the stage. The first picture has a magenta background. This is made by covering a white light with a red and blue filter and shinning it at the stage. The primary colors fliter our the green light and the magenta is projected. The second picture is more purple which means that it was a stronger blue filter than the magenta filter. These colors are creawted by color by subtraction. The backgrounds reallly ad the finishing touch to our performances. Now i now how we get so many different shades of lighting!

Colorful Team!

This is a picture of the senior dance team and one of the crazy costumes. There are many shades of colors all made from the primary colors red, green, blue. The white light shines on the clothes and reflect the colors. My shirt is green because the green color is reflected to your eye. The yellow tights are made by a reflection of red and green. These combines colors are sensed by the cones in your eye as yellow even though the red and green cones are stimulated. My shorts are black because none of the colors are reflected to the eye. The white of Amber's tights (next to me) are made up of all of the colors from the white light. These colors show up in the gym like this, but on stage lighting it changes the colors. We couldn't wear these at the LCC show because the red lights for the stage lighting on this dance would change the colors. The red light on the green shirt would send only red light and the green subtracts red so it would appear black. Now i understand why stage lighting is so important!!

This is my friend and me at Doris Dukes after jumping off of the rock wall. The vibrations were sent through the water from the impact of our landing. The vibrations created waves as the energy travels through the water. The molecules do not actually move forward but merely move up and down. The amplitude can be measured by finding the displacement from the equilibrium position. The frequency is the number of vibrations per sec. We could have increased the amplitude and frequency by making a larger splash to cover more surface area. The same method of measurement is used to find the wave height on our shores.

Physics at my house!

Disney Physics!

This picture is of my cousin Rhonda, my mom and I in the log of Splash Mountain. I don't know if this is directly related to magnetizm but i know that many rides run on magnetic tracks. They are not quite levetation tracks though. I thought that the tracks could be magnetic because there are no chains on the tracks, only a middle rail. If they used magnets to keep it on track, then the cars (or logs) would stay on track and keep moving by generating its own electricity. Splash Mountain could generate its own electricity with the waterfall because the kinetic energy can be converted to electric energy by a generator.

This is a picture of my friend Courtney and I taking pictures of ourselves as seen on tv!!! ok yea so its a camera hooked up to the Tv but its still pretty cool. The tv is connected to the power outlet in the wall with has a voltage of either 120 V or 0V at any moment. The current flows through the complete circuit starting from the 120 V outlet to the tv where the charge is used and the V is returned to zero until the new electrons from the outlet are supplied. Because the outlet is 120 the charge of the electrons will be 120. The tv also has some resistance so that the real charge used will not be the full 120. THe more resistant the circuit the smaller the current. YAY we are on tv :0

This is Angelica and me sitting on a floaty raft in the pool. We were being stupid and trying to push ourselves across the pool with just our legs while balancing on it. As we push against the water with our legs, the water pushes back, propelling us forward. We must keep the mass and distance from the center of each person equal so that we won't tip over. I am assuming that we will learn why the reflection of the water is blue and other aspects of this picture soon!!

This is a picture of Laurel, Courtney, and I messing around at our friend's seventeenth bday party. We are all in different positions and balancing on one foot. This requires our center of gravity to be directly underneath us because if it is outside of the area below us, we would fall over. The more unequally distributed your mass is, the easier it is balance. Therefore the move that courtney is doing moves her CM further away from her leg on the ground. Also, we push against the ground as the ground pushes us back. This is the law of equal and opposite force. If you are actually doing these positions you would realize that you must continually push and grip your toes onto the ground.

Journal 8

This is a picture of my dance team doing turns in one of our performances last year. You can keep these types of turns going for as long as you can maintain stamina and balance. Just like my previous journal, the center of mass must be under my standing leg in order to stay balanced. The other important factor is that the rotation is kept going my the torque applied by the force of my leg swinging around, which is aided by inertia. My extended leg can also be considered the lever arm of the torque. Once I understood these calculations, i realized how i could improve my turning by making sure that i have enough force and the perfect center of mass placement.

Journal 6

These are my friends Laurel and Courtney. We are all in different dance positions with different center of masses. For us to maintain these positions without falling over and losing our balance, the center of mass must be under us. If the center is moved too far forward or backwards, we cant hold these shapes. I didn't realize how much i use center of mass in dancing everyday. Most of our tricks and turns cannot be done without incorporating the law of physics.

journal 5

This summer, my friends and I went to Alan Davis. My friend and I tried doing different jumps, but nothing as crazy as landon and gavin's jumps. This is me just stepping off of the edge and attempting to look graceful in free fall haha. When I am standing on the edge of the log, i have potential energy relative to the water (PE=mgh) but not kinetic (KE=1/2 mv^2) because i am not moving. As soon as i step off the edge, I then have kinetic energy but the potential energy decreases because of the decrease in height. When i hit the water, i have kinetic energy but no potential energy in relation to the water. The total energy when i was standing on the log must be equal to the energy at the end of the jump. It was a lot of fun jumping off the log and free falling was super fun. I don't know how much more potential energy i could handle before i get too freaked out to jump tho!! (no way to spiting caves lol)

Journal 4

HAPPY HALLOWEEN
my picture shows that im happy cuz its more fun than last year (happy like tinkerbell) but a little scared for the rest of the year cuz i hope i can handle it ...and its Halloween

Physics has been a lot more fun than i thought it would be, since i came out of chem hating it. (but this makes a lot more sense) My problem is that i understand it but then on the multiple choice on the test i mess up biggggg time. lol I want to bring my grade up by getting better at those. This is the only class i will stay after the period is done to finish stuff up and its actually fun. Ive been trying really hard to keep up and its makin more sense. (well i think) :)

Journal 3

This is my friend playing pool at Hawaiian Brians. You actually have to be good at using physics (and geom) to do this.. i'm horrible at pool. :] The ball is in a resting state until she uses force to move the ball. By hitting the white ball, she moves it into the state of motion with the net force of her hit. The ball will stay in motion until another outside force acts upon it. You want this to happen when the white ball hits the ball you were aiming for. It will then transfer the energy to the other ball and that ball will continue moving until it is stopped. A different outcome will occur if you do not use enough force. The friction with the table will eventually slow the ball to a stop, which is what makes the ball stop rolling before it hits the desired ball. If you know how to use these facts you might be a good pool player!!!

journal 2

This is my dad windsurfing! Windsurfing is basically all physics. The velocity increases as the board is pushed by the waves' force and the sail is pushed by the wind's force. The velocity increases as you sail down the wave. The acceleration increases as you continue down the wave because the board is moving forward and the change in velocity is positive.
I like windsurfing (even though i don't do it much) and it all depends on how you use the physics!!

Journal 1

This is a picture of Landon and Gavin on a swing when me and my freinds went to the park. They begin on the ground (with their knees up to their chest ;)) and then pull back to gain potential energy. Once off the ground, the velocity increases as they swing higher. When the maximum height is reached, they move backwards with increasing acceleration and increasing velocity. Once at the original position, the acceleration begins to decrease as they swing backwards. If this motion was deamonstrated on a velocity graph, it would have a positive slope ( forward direction, positive velocity) and then at its peak it would change to a negative slope (backwards direction with increasing velocity due to gravitational pull). This will then change to a negative slope because they go in a backwards direction but use the force exerted from their legs to increase velocity. Finally they will be moving in a forward direction with increasing velocity which creates a positive slope.

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