Physics coursework Essay Example for Free

Physics coursework Essay To make it clearer, I need to provide some graphs to my report, which would show much clearer what is happening in the experiments. On the table I have written, snapped for the end result of each experiment. This literally means that the wire has snapped at this point. Unfortunately one of the experiments snapped before the other two, this information would prove to me that either the experiment was carried out differently, poorly, or just that the wire was in different conditions. Analysis Firstly a major factor that I investigated which I believed would affect the distance that the wire stretched, was the time period between applying weights. If I applied all the weights at the same time it would snap quickly and results that I would have received would have contradicted each other, by this I mean when each weight is added it wouldnt have enough time to stretch the wire to its full potential. To resolve this I applied the weight on a two minute time period, however considering that the first 70 or so Newtons didnt have much effect on the wire, I applied them at a slightly faster rate. The following table shows the relationship between the mass and distance stretched: As you can clearly see from the graph, the first 50 Newtons have no effect on the wire, between 50 180 Newtons little change is occurring, but from that point the wire is experiencing large amounts of strain. Small stress will cause the copper wire to stretch. Remove the stress and it returns to its original dimensions. This is known as elastic deformation. If the stress is increased too far and it passes the point of elastic deformation, the wire snaps. However at this point of elastic deformation the wire yields, from this point the wire begins to deform, this is now plastic deformation. The information that I now have enables me to calculate other such factors of the physics of the experiment. I can work out stress and strain levels, and then from that, the youngs modulus of the wire. The youngs modulus of the wire tells me how flexible or stretchy the wire is. Calculations: Stress = Load / (cross sectional area of the wire) Cross sectional area of the wire = pie x r (squared) Cross sectional area of the wire = 0. 1075mm(squared) Stress = x / 0. 1075 Strain = Extension / Original Length Strain = x / 300(cm) Youngs Modulus = Stress / Strain I can add the stress, strain and youngs modulus values to my table: Mass Distance (mm) (N) Exp 1 Exp 2 Exp 3 Average Strain Stress Youngs Modulus  Snapped Snapped. The information I have received from the table will then enable me to provide the conclusion with such arguments as youngs modulus graphs: The stress-strain graph for the copper wire is pretty much a straight line, up to the point where it fractures. At the point where it fractures the wire experiences plastic deformation this is when the wire cannot be shaped back into its original counterpart. To show the stress and strain levels acting on the wire most effectively it would be clearer to draw a graph: The graph above shows the elastic region, the plastic region (extension uniform along length) and the plastic region (necking has begun). Conclusion From these results and the way that I have interpreted them I can conclude that the wire behaves to the weight applied to it, in firstly an elastic behavior pattern, then finally in a plastic behavior pattern, depending on how much weight is applied. The more weight applied to the wire, the closer it gets to plastic behavior and eventually snapping. Therefore stress and strain levels upon the wire at these points are behaving differently resulting in a youngs modulus graph, which proves the elastic/plastic behavior patterns. Some of the results that were recorded may have been affected by human errors such as applying the weights drastically and measuring the distances that wire has stretched incorrectly, but however carrying out the experiment in great detail would take large amounts of time, which would not enable me to compile three experiments and an average. Ways that my experiment could have been improved: if a weight applying mechanism were used, it would prevent the weights causing noticeable differences to the distance that the wire has stretched. Another problem, which I experienced with the weights, was the fact that more than one slotted mass hook to be applied to the wire. If a device was prepared so that weights were added to the slotted mass alternately to prevent handling the weight to apply the mass. If I were to carry out the experiment again, I would use a thinner wire, or one with a lower tensile strength. This would mean that less weight is to be applied to the wire. I would do this because if you look back at my results the first 60 or 70 Newtons dont affect the wire at all. If the wire is going to snap sooner, it will mean that the wire will stretch less. George Buse Mr Pellet Physics Coursework 1 Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism section.

Raves And Drugs Essay -- essays research papers

Generally people associate raves(Underground Techno parties) with designer drugs like Ecstasy(MDMA), Speed(amphetamine) and other acids like LSD. These drugs are called the Techno Drugs for that reason and most of the time have uplifting and sensatory effects. To understand more clearly the relationship between the raves and these drugs, we first have to understand the philosophy behind the Techno era, and a little about the music. â€Å"Techno, can lift the spirit and become a new world of freedom and peace"(D'Vox Magazine The first electronic music Magazine). Most raves are covered with propaganda about freedom, peace, spirituality and the like. It is no surprise why teens use these specific drugs at raves. "The effects of E, are like a journey to another world, a world of happiness, love and euphoria" (Ecstasy and Mental Health: Nerves or neurosis by Dr. Karl Jansen) These ravers, have many reasons to take E, for example " The music lends itself to the intake of drugs, drugs are common in youth culture, teens need energy to dance all night, the rave scene is bombarded with all kinds of E" (Drug Information Database, www.pharmlink.org/designer/index.html/). "The media has given E and the rave scene a bad reputation, since 30 years ago music has been greatly united with drugs. For example Weed and Rock in the 60's and acid in the 70's." (E for Ecstasy by Nicolas Saunders, ch.1) Ecstasy is just a hard and dangerous as weed, "a drug that 1 out of every 3 highschool students in the American population have had experiences with." (Drug Information Database, www.pharmlink.org/stats/index/main.html/) "Why is E judged so harshly when the ecstasy related deaths can not compare with those related with legal drugs just like tabacco and alcohol." (E for Ecstasy by Nicolas Saunders, ch.2) Of course the media has a lot to do with it, the media takes all the negative effects and doesn't include the positive ones. " ; 29 volunteers where asked to assist Dr. Green, prominent doctor in charge of studies for the BMJ (British Medical Journal), in a study of the effects of E." (Readers Digest article by Russell Twisk editor-in-chief) "Out of those 29 volunteers they all experienced, unpleasant experiences such as nausea, sweating and stiffing" (Readers Digest by Russell Twisk). " Although the voluntee... ... is so complex as to completely determine if E has affected the toxicity in long term users, I believe that it does decrease the level of serotonin in the brain, without destroying serotorgenic axons." (Ecstasy: a human neurotoxin? Interview with Dr. O'callaghan). There have been many studies, some of them trying to prove that E is in fact a neurotoxin and those trying to prove it's not, up to now both sides cannot come up with solid answers to the subject. It is hard to say that all ravers are on E, but certain the majority of them are. " If a raver is not E at a rave, Techno has the same properties (although much less stronger) as some of those drugs. Techno is played incredibly loud and raves have incredible lights that cause euphoria in the most sober of minds". (Techno & Ecstasy: Music and Drugs in the year 2000, Times Magazine by Nicolas Saunders) Although Ecstasy is illegal in every country in the world, I think it will be impossible to stop ravers and t he production of E in underground labs. Since Techno is becoming more popular around teenagers, therefore E is also becoming more and more popular around the clubbing and raving scenes. Word Count: 1337

Mother Jones advertises itself as smart, fearless journalism Essay

Of all mothers, Mother Jones advertises itself as â€Å"smart, fearless journalism. † If only we all had mothers who looked this deeply through current events. This is a unique journal which holds itself to high standards in both a journalistic and moral sense. As the website says, they look for articles that are â€Å"Hard-hitting, investigative reports exposing government cover-ups, corporate malfeasance, scientific myopia, institutional fraud or hypocrisy, etc. † It’s a journal that likes to get facts, shocking facts, about what people care about. The pages of the journal are ridden with ads devoted to the environment and environmentally concerned companies. Even financial investors advertize themselves as â€Å"green† investors (pg3). A cigarette company has an entire page add with â€Å"Natural† as their larges printed word. Educational institutions also claim add space that contributes to the worldly responsibility saying â€Å"change yourself, change the world† (pg 21). By using the adds in this journal alone, you could help end animal cloning (pg.33), drink organic coffee (pg 32), invest in economically sensitive companies (pg 25), get information about fixing your pet (pg 21), and even discover how to take part in the â€Å"green festival† (pg 35). All of it is riddled with the underlying message of social responsibility. In the mission statement found on the journals website, it says â€Å"the Mother Jones produces revelatory journalism that seeks to inform and inspire a more just and democratic world. † Notice they used the word â€Å"world,† and not just nation. Both advertisements and articles aim to sway opinions towards helping to change the world. In a single publication, there are articles on global warming, several on current American politics, the possible dangers plastic pose to the environment, oil spills in Brooklyn, education of troubled and disabled students, and the lack of protests on the behalf of today’s college students. It’s clear that this journal is out to change the world and hold us all accountable for higher moral and ethical standards. But that begs a question; what kind of standards? It’s tricky to lay a claim on whether this journal is liberal or democrat, let alone identify any defining moral statement as it has articles reflecting both sides of the generalized views of those parties. Perhaps this sentence taken from the websites advertising policies page can help explain the confusion; â€Å"we’re in business to produce great public interest journalism, no strings attached. † Or maybe this one; â€Å"Mother Jones respects and values free expression and dissenting voices. † Sounds very intelligent and fair – idealistic almost – but what’s the catch? Well it’s clear that a magazine is a business, and like any business you have to sell. Mother Jones does this with shock value. They publish articles about torturing children and one entitled â€Å"Gay by Choice? † It also has an article depicting news corporations as bias and even creating â€Å"fake news. † Mother Jones tells their readers all about the things they cannot trust, and reasons why from the experts who claim it. The writers for Mother Jones are experts to say the least. Most of their columns are written by freelancers, but darn good ones. Their cover story â€Å"School of Shock† was written by Jennifer Gonnerman after a yearlong investigation. Gary Greenberg is a contributing writer who is also psychotherapist, and his work has appeared in The New Yorker and Best American Science and Nature Writing. It’s clear that they editors believe, as their website claims, that they â€Å"assume that our readers are sufficiently smart and skeptical. † Though, when reading the articles it is clear that a degree is not needed to read this journal. Technical terms are not used freely or thoughtlessly. All in all, this journal claims, and lives up to those claims, to be a smart and justifiable journalism. It’s a publication that’s not a slave to it’s advertizers, and respects different viewpoints. I could see favor given to stories with shock value, but the overall theme of the journal, of global responsibility, would not be compromised. A Journal of Interest In Jennifer Gonnerman’s article â€Å"School of Shock,† she describes the extremely controversial disciplinary actions of the Judge Rotenberg Educational center located in Massachusetts. The center was originally set up for children with such extreme behavioral problems that they could not be a part of a normal classroom. Electric shocks are used on about half of the 234 children within the facility which charges $220,000 a year for each student. These children are diagnosed with sever autism, metal retardation, schizophrenia, bipolar disorder, or are emotionally disturbed. By relaying the stories of children who have been through traumatic events in the facility, as well as her own personal experience interviewing them and visiting the school, Gonnerman creates a very emotional piece. After reading it myself, tears nearly ran down my cheek; and I’m a man who rarely tears. Surprisingly, most of the article is factual, with some informative narrative. The voice of Gonnerman is present, as are her thoughts and opinions, but they are not stated outright. By doing this she lets the reader feel through the facts and experience rather than preach to them. It could be very easy to push such an article in the face of readers with strong visual images, but instead the images are simply those of children sitting or standing, usually with an adult looking over them. There are no images of children being shocked, but there are also no pictures of children misbehaving. In this way, the article is neutral in it’s portrayal of the school. Though I cannot imagine anyone who believes that shocking a child with the voltage described is an ok thing to do, the article voices both sides of the argument. Numerous examples are given of a extreme behavior such as inducing vomiting, biting chunks out of his/her own tongue, setting fires and cutting him/herself. It’s a place where any child can go, despite their history or severity of behaviors. In some ways, it sounds like a necessary evil. The writing is clearly seeking to shut the school down, but it does not give a solution for its necessity. It does not give any alternatives for students or parents. I leave the article wondering how else to handle such violent and disturbed children. A Journal of Freelance Of the articles published in Mother Jones, most of it comes from freelance writers. That doesn’t mean, however, that just anyone can write for them. A slew of experts and highly educated, and highly published, writers contribute to this journal. But if you don’t want to go and get your doctorate just to be published, here are a few things to think about in order to get published: Subject, Experience, and Tone. The Subject, first and formost, must be one of large consequence. Either look to meet a large interest with a large number of people, or look for a topic that would shock a large number of people. Also, the topic must be something that can be affected or has subsequent consequences. To sum it up in a few words, it should be a new view on a popular subject. As for your experience with the subject, well years of schooling aren’t required to write for Mother Jones, but years of experience might be. Not only will this journal hold your writing and journalistic talents to a high level, but many people who have written on a subject for the journal have also written a book about it; and it’s been published. If you’ve been published in big name journals like The New Yorker, or Rolling Stone, that might work also. And finally the tone of your writing must be affirmative action. The editors of this magazine seek to change the world with it, so think along the lines of that. Other than a lot of research, aim to persuade readers to take action. Who knows, maybe Mother Jones will change the world some day, and you could be a part of it.

Media Distort Representation of Islam and Arab World - Free Essay Example

Sample details Pages: 3 Words: 970 Downloads: 2 Date added: 2019/10/10 Category Religion Essay Tags: Islam Essay Did you like this example? Nowadays, media becomes the witness of our lives. To know more about what things are going on around the world or to know about the culture or information of some countries, we rely on media a lot. Media provides a faster way to know things that we want to know, instead of finding the information in books. Don’t waste time! Our writers will create an original "Media Distort Representation of Islam and Arab World" essay for you Create order However, when people search something about Islam or Arab culture, most news or information is negative. Lots of terror attack from ISIS which are related to Islam or lots of innocent people got killed by so many reasons in Islam. Therefore, when people mention about Islam, they all come up with bad images about them, which make many people scared and think that all of them are terrorist as well. So, even though Muslim is the fastest-growing religious groups and immigration, they are among those least understood by other people (Blank, 1998). Why does that happen? This paper will show how the media present Islam and Arab culture, how media distort them, and some misconception about Islam. First of all, how do the media present Islam and Arab culture in our lives? According to Prothero (2014), Islam is always being debated in social media, television, and even in the NFL (National Football League). There is an article about a football player named Husain Abdullah, who is a Muslim who works as Kansas City Chief Safety. He was penalized for celebrating a touchdown by praying (Prothero, 2014). This shows how people react to Islam or Muslim people. It is even worse in Western countries. More people are scared and even hate them. Recently, a research by Sprusansky (2017) investigates that 80 percent of media in U.S, UK, and Germany present Islam negatively, especially Fox News, with 100 percent. This causes Western people to misunderstood Islam and Muslim people. On the other hand, the media continue to play an important role in presenting stereotypical visions and conceptions about Islam and Muslim (Ibrahim, 2008). If people absorb this negative news without thinking, they will obviously get influenced by it. So, even though media are just presenting the truth without distorting them, it will still create misconception for us. So, how do media distort them? There are many Anti-Muslim who used popular radio talk-show as a tool to spread messages of intolerance and hate of Muslim (Ali, 2011). As a result, many people are going to believe it since radio talk shows are popular. Moreover, national politicians, especially right-wing politicians, are supporting them because they want to raise funds and get conservative voters to the polls (Ali, 2011). Most candidates for public office also give a prejudicial speech about Muslim (Newswire, 2013). According to Newswire (2013), it also gets even harder for people to not being influenced by these media as they use popular media and have someone even powerful at the back to support this. Preventing this to happen is difficult, so many people are just letting those distorted messages being widely spread. In addition, Islamophobia use network to promote prejudice against or hatred of Islam and Muslim. They even get highly paid for it. The main purpose of them doing this is to encourage the American public to fear Islam (Newswire, 2013). Politicians with high salaries promote these hatred and tolerance message spreading everywhere. Therefore, it has a connection towards Islam image that we have since the media keep showing negative news and wrong messages. Third, if the media keeps distorting them, what kind of misconceptions occurred? Muslim’s religion is Islam of course. They teach peace and surrender, unlike what we see on news, having wars or fighting against each other. The common representation of Muslims is refugees and radicals. Muslim men are always violent and women are innocent victims. (Pennington Kahn, 2017) In addition, Muslim men are also often represented by a masked militant rather than other normal careers (Blank, 1998). However, this is not entirely true, only some parts of them are like this. Furthermore, most widespread misconception about Islam is that Muslim is primarily Middle Eastern people. Actually, only a few of them are Middle Eastern people, whereas the others are not (Blank, 1998). In fact, Islam is conservative and liberals. For example, there are women who wear a veil and women who do not (Wolken, 2016). Still, no one really notices about that. According to this, we can know the unbalance storie s about Islam, where the media put more negative news than positive news or correct culture. To sum up, people having the misconception and bad image of Islam and Arab culture is because of seeing lots of negative news about them in the media in their daily life. Especially in Western countries, those popular TV news channels present them in a negative way as well. Lots of people around the world using popular media to spread the hatred and intolerance message about them. The people who tried to distort Islam people, are usually some national politicians and Islamophobia people. They work well together and even get paid for it. People who do not know about their culture or religion. They will believe what they see in the news. Thought that Islam or Muslim people are all refugees and radicals. Muslim men are always violent with a masked militant image and women are innocent victims. Which shows the unbalance story of Islam culture in media. To change this kind of situation, the media should balance the stories instead of only putting one side of the story. Or when we see any information on media, think first before you trust it. Find more information on other media and compare it. By comparing the news, we can be able to notice that what the truth is behind the story. On the other hand, seeing a different viewpoint and try to find the truth in the middle help a lot for absorbing the correct information as well.