1. An item becomes negatively charged by friction or a loss of electrons. An ion is a atom or molecule that has gained or lost more than one electrons which gives it either a positive or negative chart.
2. An atom is arranged with the center being the nucleus near the center are protons and neutrons. On the sides of the atom are electrons that basically orbit around the center giving it either a positive or negative charge.
3. For something to be polarized there is always a up and a down and an item only works one way. For instance with batteries there is a positive and negative. The battery only gives an item energy if it is connected correctly.
4. An insulator is something that keeps energy in. One way to think of it in today's world is as the insulator that keeps your house warm in the winter by trapping in heat. A conductor is something that transfers energy. For instance a circuit uses copper wire because copper can easily transfer energy.
5. For something to be attracted to one another one force has to be a lot larger than the other to balance out the electrons. For instance if you have a lot of negative electrons a neutral or positively charged item will be attracted to it.
6. A negatively charged balloon attracts neutral pieces of paper because the negative electrons is attracted to all of the positive electrons that the neutral item has.
7. An electric field is the area around a electric charge. The purpose of a positive test charge in an electric field is a negative charge and a positive charge that pulls at surrounding items.
8. Electric potential is measured by the amount of work you put in. For instance if you plug in a hair dryer to the wall it has potential electric energy because the energy is waiting for you to turn on the appliance.
Questions: I don't have any questions currently.
Monday, March 30, 2009
Tuesday, March 17, 2009
Van de Graff Experience
On March 13th, 2009 we did a Van de Graff activity. The Van de Graff is a machine that stores electrons from a rubber band in a dome. One of the things we used on it was bubbles. We found that the bubbles moved away from the Van de Graff. I believe that they flew away because the electrons stored in the dome is a lot of static energy, and the bubbles are a neutral energy. Therefore the bubbles repelled from the large difference in energy.
Another activity we did was a human chain. One person touched the dome of the machine and several people held hands (one being the person holding hands with the person touching the Van de Graff machine). We found that no one in the human chain got shocked but if someone outside of the chain touched the chain they would be shocked. I believe that this was because the energy of the people in the chain balanced out with the electrons in the dome, and the people got shocked because there body hadn't adjusted to the electron transfer.
Another demonstration we did was one where we placed a napkin on the machine vs. several napkins on the machine. We found that the edges of the single napkin quickly lifted and the napkin flew off. However the stack of napkins did not move, only the edges flew up. I think this was because there were not enough electrons to push away the stack, but the single napkin was lighter and was able to be pushed.
Another example we used to learn was to stick strips of paper to the dome. We found that the pieces of paper stood up and repelled form one another. I believe this occurred because they both had the same amount of electrons so they could not be close to one another.
The last activity we did was to put a handful of Cheerios on top of the dome, and turn on the machine. We found that the Cheerios quickly hopped of the machine in random directions. I think this happened because as the dome filled with electrons the force of the electrons greatly exceeded the amount of electrons in the Cheerios, causing them to repel.
When is a atom a positive or negative based on the amount of electrons an atom has?
Another activity we did was a human chain. One person touched the dome of the machine and several people held hands (one being the person holding hands with the person touching the Van de Graff machine). We found that no one in the human chain got shocked but if someone outside of the chain touched the chain they would be shocked. I believe that this was because the energy of the people in the chain balanced out with the electrons in the dome, and the people got shocked because there body hadn't adjusted to the electron transfer.
Another demonstration we did was one where we placed a napkin on the machine vs. several napkins on the machine. We found that the edges of the single napkin quickly lifted and the napkin flew off. However the stack of napkins did not move, only the edges flew up. I think this was because there were not enough electrons to push away the stack, but the single napkin was lighter and was able to be pushed.
Another example we used to learn was to stick strips of paper to the dome. We found that the pieces of paper stood up and repelled form one another. I believe this occurred because they both had the same amount of electrons so they could not be close to one another.
The last activity we did was to put a handful of Cheerios on top of the dome, and turn on the machine. We found that the Cheerios quickly hopped of the machine in random directions. I think this happened because as the dome filled with electrons the force of the electrons greatly exceeded the amount of electrons in the Cheerios, causing them to repel.
When is a atom a positive or negative based on the amount of electrons an atom has?
Thursday, March 12, 2009
Electricity Activity 3-12-09
In physics/math class we did three different activity's to learn about electricity. The first activity was to rub a balloon against someones head, then try to pick up pieces of paper with the static, and then seeing if it would stick to someones jacket. Our observations was that the balloon picked up the paper but would not stick to a jacket. My hypothesis for this is that the static energy created by rubbing the balloon against the hair could not stay attached to something else when it already picked up the pieces of paper.
The second activity we did was to get two pieces of tape about ten inches long and stick it on the table. Then quickly pull them both off and see what they did. We found that the two pieces of tape moved away from each other. My hypothesis for this station is that the electromagnetic force which is that like atoms repel. I believe that it is electromagnetic force because the pieces of tape repelled away from the other piece of tape.
The third activity we did was to cut two pieces of tape about ten inches each. Then stick one piece of tape to the table and put the other piece of tape on the other piece of tape. Next quickly pull the two pieces off. We found that the two pieces of tape attracted to each other. I believe that the tape was attracted to each other because some of the electrons went to the other piece so there was a positive and negative, which caused it to come together.
Questions:
Why does the balloon not stick to the jacket? It has other times before for me...
The second activity we did was to get two pieces of tape about ten inches long and stick it on the table. Then quickly pull them both off and see what they did. We found that the two pieces of tape moved away from each other. My hypothesis for this station is that the electromagnetic force which is that like atoms repel. I believe that it is electromagnetic force because the pieces of tape repelled away from the other piece of tape.
The third activity we did was to cut two pieces of tape about ten inches each. Then stick one piece of tape to the table and put the other piece of tape on the other piece of tape. Next quickly pull the two pieces off. We found that the two pieces of tape attracted to each other. I believe that the tape was attracted to each other because some of the electrons went to the other piece so there was a positive and negative, which caused it to come together.
Questions:
Why does the balloon not stick to the jacket? It has other times before for me...
Thursday, November 20, 2008
1st Dialectical Journal
1984 by George Orwell
My quote: "We are the dead," he said
"We are the dead," echoed Julia dutifully
"Your are the dead," said an iron voice behind them
Pg 221
I chose this quot because I was really startled when out of nowhere a telescreen spoke out when there was supposed to be none in the room. I also liked that quote because it changed everything in the book, in that one sentence you knew the thought police were coming for Winston and Julia.
The significance of this quote was that Julia and Winston were finally caught, and there was in fact a telescreen in the room that was supposed to be free of a telescreen.
My quote: "We are the dead," he said
"We are the dead," echoed Julia dutifully
"Your are the dead," said an iron voice behind them
Pg 221
I chose this quot because I was really startled when out of nowhere a telescreen spoke out when there was supposed to be none in the room. I also liked that quote because it changed everything in the book, in that one sentence you knew the thought police were coming for Winston and Julia.
The significance of this quote was that Julia and Winston were finally caught, and there was in fact a telescreen in the room that was supposed to be free of a telescreen.
Friday, November 7, 2008
The Legacy of columbus
10-12-08
Seminar Reflection: The Legacy of Columbus In this seminar I participated in the seminar on the maps of different explorers. I discussed how I thought that Columbus Day shouldn’t be a holiday due to both the information given on the maps, the packet on Columbus, and my previous knowledge.The group of students who participated in the seminar with me on the maps spent a lot of time comparing the map of where Columbus traveled to other explorers. My group of students also debated whether or not Columbus was deserving of a holiday. Overall we all agreed that Columbus did not deserve a holiday due to the fact that he killed a lot of people, didn’t even discover America, and because he didn’t even know that he discovered a new piece of land.Christopher Columbus does not deserve the honor of getting a National Holiday in America. Not only did Columbus not even discover America, he also tortured and killed many people in the process of getting what he wanted.The general opinion of my classmate’s on whether Christopher Columbus deserves a holiday or not was generally that he did not deserve a holiday. My classmates believed that Christopher Columbus really didn’t even have a part in American history, and has nothing to do with America. They also thought that his actions against the Native people of South America were inexcusable. Therefore Columbus Day in the general opinion of my classmates was that Christopher Columbus does not deserve a holiday.Christopher Columbus and his men killed a lot of innocent people. For example they made a law that for every one Spaniard lost they would kill one hundred Indians. In the three to four months that Bartolome was in Cuba with Columbus more than six thousand children died because they were taken from their families and forced to work in mines. Many people died because of Christopher Columbus. Entire generations were wiped out due to Christopher Columbus and his men. An entire culture disappeared all due to Christopher Columbus and his men. Should we praise a murderer who didn’t even discover North America? If anyone deserves recognition it should be the thousands of lives that were lost because of Christopher Columbus. Columbus does not deserve a day to remembrance. He does not deserve to be thought of as a hero. People should know the truth of his crimes and then decide if we should praise the murder of thousands.
Seminar Reflection: The Legacy of Columbus In this seminar I participated in the seminar on the maps of different explorers. I discussed how I thought that Columbus Day shouldn’t be a holiday due to both the information given on the maps, the packet on Columbus, and my previous knowledge.The group of students who participated in the seminar with me on the maps spent a lot of time comparing the map of where Columbus traveled to other explorers. My group of students also debated whether or not Columbus was deserving of a holiday. Overall we all agreed that Columbus did not deserve a holiday due to the fact that he killed a lot of people, didn’t even discover America, and because he didn’t even know that he discovered a new piece of land.Christopher Columbus does not deserve the honor of getting a National Holiday in America. Not only did Columbus not even discover America, he also tortured and killed many people in the process of getting what he wanted.The general opinion of my classmate’s on whether Christopher Columbus deserves a holiday or not was generally that he did not deserve a holiday. My classmates believed that Christopher Columbus really didn’t even have a part in American history, and has nothing to do with America. They also thought that his actions against the Native people of South America were inexcusable. Therefore Columbus Day in the general opinion of my classmates was that Christopher Columbus does not deserve a holiday.Christopher Columbus and his men killed a lot of innocent people. For example they made a law that for every one Spaniard lost they would kill one hundred Indians. In the three to four months that Bartolome was in Cuba with Columbus more than six thousand children died because they were taken from their families and forced to work in mines. Many people died because of Christopher Columbus. Entire generations were wiped out due to Christopher Columbus and his men. An entire culture disappeared all due to Christopher Columbus and his men. Should we praise a murderer who didn’t even discover North America? If anyone deserves recognition it should be the thousands of lives that were lost because of Christopher Columbus. Columbus does not deserve a day to remembrance. He does not deserve to be thought of as a hero. People should know the truth of his crimes and then decide if we should praise the murder of thousands.
Tuesday, October 28, 2008
MUN Reflection
Allison
10-28-08
On October 24th at our school we had MUN which means model united nations. We had to model what the actual UN does by recereating it with real issues and real country repersentations. I was given the country Romania which is located in Eastern Europe. I was on the UNEP commite and we talked about CFC emmisions and the green industry.
I thought that MUN was a lot of fun. I really liked being able to be argumentative and come up with solutions to important problems and go against what everyone else did, and not following the crowd. I was Romania and although I was allied with many different countries I felt that no one was listening to what I had to say, so with the help of Peru I we made our own resolution. Peru and my resolution did not get passed however I think that it did not get passed because everyone sided with the "smart people" of our group and wouldn't even listen to what we had to say. I think that if people were more open minded and not so focused on following the people that are thought of as smart then I think a lot more people would have seen our point of view and sided with us.
Although I liked MUN I didnt like how i was not able to debate, because debating is one of my favorite things to do. I think that I can use MUN as a reminder for me to be like I was in MUN and always be active participant.
I think that I particpated a lot more than I anticipated, but I think that I could have gotten a better award if I talked more and was more agressive with what i was saying.
10-28-08
On October 24th at our school we had MUN which means model united nations. We had to model what the actual UN does by recereating it with real issues and real country repersentations. I was given the country Romania which is located in Eastern Europe. I was on the UNEP commite and we talked about CFC emmisions and the green industry.
I thought that MUN was a lot of fun. I really liked being able to be argumentative and come up with solutions to important problems and go against what everyone else did, and not following the crowd. I was Romania and although I was allied with many different countries I felt that no one was listening to what I had to say, so with the help of Peru I we made our own resolution. Peru and my resolution did not get passed however I think that it did not get passed because everyone sided with the "smart people" of our group and wouldn't even listen to what we had to say. I think that if people were more open minded and not so focused on following the people that are thought of as smart then I think a lot more people would have seen our point of view and sided with us.
Although I liked MUN I didnt like how i was not able to debate, because debating is one of my favorite things to do. I think that I can use MUN as a reminder for me to be like I was in MUN and always be active participant.
I think that I particpated a lot more than I anticipated, but I think that I could have gotten a better award if I talked more and was more agressive with what i was saying.
Tuesday, October 7, 2008
Chinese History
Allison
10-7-08
The Chinese settled near the Yellow river about three thousand years before Christ was born. In the Xia Dynasty the first emperors ruled China. The emperors in the Xia Dynasty can be referred to today as ruled by queens and kings. Before Christ was born in the time of the Han dynasty iron, fishing, religions, the first trade routes, literature, silk, writing, poetry, canals were the inventions, discovery’s, and ideas discovered and thought of before Christ was born. Animals were also domesticated into working animals. For example silk worms were domesticated in the Neolithic Dynasty of China. Silk worms were domesticated so people could get silk for lavish linens and clothing. In Chinese history there was a lot of corruption of government going on in China, for instance how many dynasties and emperors were overthrown. Throughout all of Chinese history the Chinese were constantly improving their storage of food supplies. Many dynasties worked on building extra food storage all throughout the nation so that people would not starve from a famine.
Throughout all of Chinas history there had been a constant advancing in the culture of China. There was a constant growth of culture advancement such as international trading, literature, weapon advancement, and much much more. During most of Chinese history there has also been the expansion of trade routes. One of the popular trade routes was the Silk Road trade route. The Silk Road trade route was not a particular trade route, but any trade route that went from China to Rome. The trade route was usually about four thousand years old. In almost all of the history of China, China’s neighbors have constantly been trying to take China so that they could have some of their prosperity and goods.
10-7-08
The Chinese settled near the Yellow river about three thousand years before Christ was born. In the Xia Dynasty the first emperors ruled China. The emperors in the Xia Dynasty can be referred to today as ruled by queens and kings. Before Christ was born in the time of the Han dynasty iron, fishing, religions, the first trade routes, literature, silk, writing, poetry, canals were the inventions, discovery’s, and ideas discovered and thought of before Christ was born. Animals were also domesticated into working animals. For example silk worms were domesticated in the Neolithic Dynasty of China. Silk worms were domesticated so people could get silk for lavish linens and clothing. In Chinese history there was a lot of corruption of government going on in China, for instance how many dynasties and emperors were overthrown. Throughout all of Chinese history the Chinese were constantly improving their storage of food supplies. Many dynasties worked on building extra food storage all throughout the nation so that people would not starve from a famine.
Throughout all of Chinas history there had been a constant advancing in the culture of China. There was a constant growth of culture advancement such as international trading, literature, weapon advancement, and much much more. During most of Chinese history there has also been the expansion of trade routes. One of the popular trade routes was the Silk Road trade route. The Silk Road trade route was not a particular trade route, but any trade route that went from China to Rome. The trade route was usually about four thousand years old. In almost all of the history of China, China’s neighbors have constantly been trying to take China so that they could have some of their prosperity and goods.
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