Friday, January 31, 2020
The bounce of a squash ball Essay Example for Free
The bounce of a squash ball Essay Then the ball will soon begin to lose speed as it rises and its KE (kinetic energy) is changed back to GPE (gravitational potential energy)as some of its original energy has been converted to heat and sound it will stop with less GPE (gravitational potential energy) than it began with. This is the reason why the height of the bounce for all the temperatures is lower than the original height (1 meter). Conclusion: You can understand from the evidence that my prediction was right as the higher the temperature of the squash ball, the higher the height of the bounce will be. As you can understand from the results the lowest temperature of 0i C gave an average bounce height of only 5m which would be 5% of its initial height. On the other hand the highest temperature of 70i C gave an average bounce height of 58. 4m which is 58. 4% of its original height. This proves my prediction right as not only can you see from the results that the bounce height increases as the temperature increases, you can then see from these results that it must be due to the gas inside the ball heating up, causing the volume of the gas to expand and the molecules to move faster which will caused them to hit the sides more often and harder. This made the rubber expand and store more elastic energy. This meant that the bounce height was bigger because the more stretched the rubber became, the better it converted elastic potential energy into kinetic energy when the ball hit the floor and therefore caused the ball to bounce higher. Evaluation I think that my results were as accurate as I could have made them with relevant safety points carried out and I got good, reliable, accurate results. The only anomaly I got was at 10i C because the temperature kept dropping which made the average too low. I decided to do the test for 10i C again and my results were much better. The average result for 70i C was lower than the line of best fit because I think that once the ball starts to reach the higher temperatures the ball cant keep on stretching and eventually it will reach its maximum stretch and therefore it wont bounce any higher, it will level out. The 70i C point looks like it would be the start of a curve to the levelling out of the bounce height. Other than that my results are very accurate as they are all very close to my line of best fit suggesting that there arent any anomalies although some points are further away from my line of best fit than others. These arent anomalies though because not every point will be exactly on the line of best fit because it would have to be extremely well controlled and that isnt possible in classrooms and unlikely to be possible in the most controlled laboratories. There will always be differences in the results no matter what so therefore I believe that my results were as accurate as possible. My investigation could have been improved by: i Not doing the test over two lessons so all of the equipment would be the same. i Making sure that all the preliminary work was done before I did the actual experiment. i Making sure the temperature was kept exactly the same and not letting it drop or increase by even 1i C. i Doing more tests to make sure I get a very accurate average. i Being quicker between taking the ball out of the water bath and dropping i Not allowing the squash ball to some to the surface of the water bath at some points, keep it below the surface to make sure it definitely reaches thermal equilibrium. I think my results were very reliable even though it was done over two lessons so some of the equipment wasnt the same but it wouldnt have made much difference as all the equipment was mostly the same and were all accurate. At the lower temperatures such as 0i C and 10i C it was hard to keep the temperatures down in a warm room and had increased by a degree or two which could have made a difference to the bounce height. This would explain why the 10i C point was higher than the line of best fit. Other than that we were very accurate with keeping the water bath at the right temperature and this was shown by the closeness of the points to the line of best fit. To provide additional relevant evidence I could: i Use temperatures that go up in 5i C instead of 10i C so I would have more information to show the relationship between the temperature of a squash ball and its bounce height. i I could have a better way of seeing the bounce height by having a video camera set up about a metre away from the experiment to see where about the ball bounced and then have another camera close up to see a closer reading of the bounce height. When I play back the video, I would put it on slow motion and show it frame by frame recording the heights until the bounce heights start to fall. Then I would take the maximum recording I had for that temperature and that would be the bounce height. This would be very accurate because I would see a very close up measurement and because it would be in slow motion and frame by frame it clearly showed the bounce height and could clearly be read from the bottom of the ball. This is more accurate than using your eyes because the ball would bounce very quickly and you only have a split second to read the height and is very difficult.
Thursday, January 23, 2020
Thos Pynchons The Crying of Lot 49 - Embattled Underground Essay
The Crying of Lot 49: Embattled Underground In May of 1966, Richard Poirier wrote an article on Thomas Pynchon's latest novel at the time, The Crying of Lot 49. Clearly a fan of Pynchon's earlier novel V, Poirier praises what he calls another sample of Pynchon's "technical virtuosity" at "apocalyptic sat[ire]," of "saturnalian inventiveness" comparable to John Barth and Joseph Heller (Poirier 1). He admires Pynchon's adept confidence with philosophical and psychological concepts &endash; "his anthropological intimacy with the off-beat" (1). Before addressing what he believes to be flaws in the author's narration (the heaviest focus of the scope of his opinions), Poirier starts with a broad survey of Pynchon's intentions with form. Poirier suggests that the various interwoven quests of the protagonist Oedipa Maas is willfully elaborate to reflect the intricacies of the mind, a wasteland of suspicion and imagination. The imagination of the novels characters "first create and is then enslaved by its own plottings, its machines" (1). Late in the novel, as connections to the Tristero cult stack up, Oedipa wanders into the dense environs of nighttime San Francisco, dizzy with her imagination (or was it?) of the underground symbol: "This night's profusion of post horns, malignant, deliberate replication . . . one by one, pinch by precision pinch, they were immobilizing her" (Pynchon 124). Like the characters in V, Oedipa Maas runs from the responsibilities of love and finds herself in a maze. Pynchon mocks these situations "de void of love" with "Byzantine complications of plot" (Poirier 1). Concerning Pynchon's characters, Poirier also notes their desperate efforts of co... ...ility to describe objects within the American scenery with a tenderness for the "very physical waste of our yearnings, . . . the anonymous scrap heap of Things wherein our lives are finally joined" (5). Pynchon has extraordinary metaphoric skill illustrating his reverence for the human endeavor to code, decode and leave messages, to communicate; his own cry at the pathetic and the haunting failure to communicate. Finally, Poirier states that the largest character throughout the Crying of Lot 49 is Pynchon himself, whose voice moves passionately "with its capacity to move from the elegy to the epic catalogue . . . like a survivor looking through the massed wreckage of this civilization" (5). Works Cited Poirier, Richard. "Embattled Underground." New York Times on the Web 1 May 1966. 22 September 2000. Pynchon, Thomas. The Crying of Lot 49. New York: Har
Tuesday, January 14, 2020
Integrating Art in Elementary School Curriculum Essay
We are living in a world full of art. Everywhere we look, every shape, size and color represent art. From the films we watch to the cover of our books, from the interior of our house to the design of our clothes, art is present. In our modern times, art is usually described in its aesthetic sense. Art comes in drawing, painting, sculpture, architecture, poetry, music, cinema, and in almost anything.                        By definition, â€Å"art is any human effort to emulate, enhance, change, or neutralize the work of nature. It is also the conscious production of colors, sounds, forms, movements, and any other element in a manner that affects the sense of beauty and aesthetics. †(Art)            The elements of art, which can help us to understand better art’s aesthetic values are color, shape, line, value, space, form and texture. Color refers to the intensity of the colors used as well as with the brightness and darkness of colors. Shape refers to the â€Å"meeting of lines†. Lines are the primary element in any drawing. Value is the lightness and darkness or color, when it is combined with the hues. Lastly, form is the dimension of a shape. It can be a two or three dimensional shape.            Moreover, the principles of art can also help us to better understand our perception of art. When combined with the elements of art, to enhance the aesthetic value of art.  These are balance, proportion, contrast, emphasis, pattern, rhythm, harmony, unity, variety and movement. Balance is the principle of art wherein the other elements should not be overly done for the symmetry of a certain artwork. Contrast, on the other hand, is the idea of showing distinction by breaking repetitions in an artwork to draw focus in a certain area. Furthermore, proportion is the relative locations, shapes, and sizes of the objects or ideas in the artwork.            The term art also has something to do with visual experience or object which was created through by expressing a skill or by using the imagination. Art’s purposes also ranges from the aesthetic to the utilitarian point of view. (Art)            There is what we call the â€Å"utility of art†. It is where the utility or use of art enters. Graffiti is a kind of art which is used as a medium of self-expression. In the social context, graffiti can be used as a means to calm the internal being and boost one’s morale. One the negative context, it can be a form of black propaganda, and thus deteriorating other people’s lives.            Knowing these, it can be concluded that it is of great importance for young people to appreciate art. It is also a common fact that because of the advent in technology nowadays, what with the computer games and other modern gadgets, kids find it hard to involve themselves in art. It is now a common problem for elementary school art teachers to find ways to help the children in the appreciation of art.                        The concept of aesthetic is a very important consideration in teaching art especially to young children. Aesthetic is a philosophical branch that deals with the â€Å"criteria of artistic judgment†. Art’s classical conception was formulated by ancient art masters Plato and Aristotle, and developed by modern artists such as Benedetto, Croce, Kant, etc. (Art)            Since art is the first thing that one observes, it is essential to focus on the aesthetic value of an art for the children to better appreciate it. There are different ways on how to improve the teaching of art (in particular with third graders).            Firstly, consider the modern technological advancement and use it as an advantage. Since it was concluded that most students are hooked with the computers, why not use it as a means to let them be interested. Use the computer to show them digital photography. Play games with the computer using famous computer games characters and relate it to art. Only if you make them interested in something will they’ll be able to learn, and this is one sure way to make them interested.            Second, change the ambiance of your classroom. The environment is a very big factor to consider for the students to learn. Make it more vibrant, more colorful, and more appealing to Grade3 students. Put some designs on the wall. Instead of using a normal chair, let the children play inside by putting a larger working space for them to interact with one another.            Lastly, PLAY. Always remember that you are dealing with small kids. Always keep in mind that children needs time to play, and what else is the best way to make them learn that to integrate learning with playing. Information plus entertainment equals learning. Children love to play. They love interacting with one another. By doing this, it is a sure way to make them learn. Sources:  (Art) Retrieved on September 7, 2006 from http://en.wikipedia.org/wiki/Art (Art) Retrieved on September 7, 2006 from http://www.answers.com/art&r=67 (Art) Retrieved on September 7, 2006 from http://www.Britannica.com
Monday, January 6, 2020
Black Nationalism The Victims Of White Brutality
African American individuals have been the victims of White brutality for hundreds of years. Since I, Malcolm X, as well as those who choose to follow me, consider me a Black Nationalist freedom fighter, I feel as if it is my responsibility to put this brutality to an end. Black Nationalism is my social philosophy and it states that the Black man should have full control of his community that should rely on its â€Å"Black membership for economic sufficiency and that refuses to be manipulated by Whites†(Revolutionary Paideia, 2013). The economic aspect of Black Nationalism requires for Afro-Americans to be in control of their own wealth. The time of the white man telling â€Å"us what to do and what not to do is long gone†(Malcolm X). Even though I am no longer the man who despised and resented the White man for all that he has done to me and those like me, I still believe in justice and standing up for myself. Consequently, I firmly believe that racial and economic j ustice can be achieved in a peaceful manner; however, one should be able to defend him or herself if it deems necessary. It is imperative that one must understand that I began experiencing brutality at a very young age. When I was only four years young, the Klu Klux Klan burned down my family’s home in Nebraska, causing all of us to move to Michigan. Ironically enough, the same thing happened once again in our new home prompting my family and I to move once more. Despite those terrible events, I was still veryShow MoreRelatedRacial Disparities Of African Americans1378 Words  | 6 Pagesserve the people, are killing black lives and are almost always found not guilty. The racial disparities against African Americans lies is shameful, but not surprising. Race matters in the United States. 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