Free Essay Samples - Writing for the College Level

<h1>Free Essay Samples - Writing for the College Level</h1><p>If you are attempting to compose a decent exposition, you might need to look at some free paper tests. There are many paper working projects out there that can assist you with composing a superior article, and these projects are anything but difficult to utilize and accompany test expositions. These examples will give you a smart thought of what you have to concentrate on and how to sort out your paper before you submit it for the school level.</p><p></p><p>Many of the online exposition composing projects will take your fundamental composing abilities and consolidate them into an article. A portion of these online projects are fundamentally the same as the well known 'Think and Write' program. They will urge you to expound on your inclinations, build up your character, and pick which subjects to investigate. They likewise have an article composing brief with the goal that you can p lan for what to remember for your essay.</p><p></p><p>The best part about the example expositions is that they will have various subjects from each site. This will assist you with concentrating your article on something that you appreciate, and your capacities as an author will be created along the way.</p><p></p><p>Religion, history, culture, and recent developments are immensely critical to concentrate as an exposition point. To assist you with your article, these free exposition tests can assist you with discovering subjects to explore.</p><p></p><p>As you start to see increasingly about religion, history, and culture, you can extend the point. For instance, you might be expounding on the connection among religion and innovation. As you take a shot at this theme, you can become familiar with the connection among religion and innovation. This will be of extraordinary assistance when it comes time to compose a paper on the topic.</p><p></p><p>Research and recent developments are two significant pieces of life today. These two themes are interwoven. As you grow your inclinations, you can investigate these different everyday issues. Look at some free article tests, and afterward include your very own portion thoughts and contemplations. Keep in mind, recollect that every subject in your article ought to identify with one of the examples and you can build up your own feelings on the topics.</p>

Common Essay Topics For TOEFL

Common Essay Topics For TOEFLIt is likely that you have considered writing a paper and have yet to do so, it is highly possible that you will be one of the many in a large number of people who attend the TOEFL online college. Many people wish to write papers in English because they are being taught that they are really students writing an assignment. However, it is important that you understand that you are really writing a paper for an exam and are required to consider essay topics for TOEFL.The essay topics for TOEFL will likely be divided into three sections; Analytical, Emotional, and Logical. All three types of essay topics will be included on your test. If you are not familiar with these terms, then you should be aware that there are specialized formats for each type of essay that you will be given. The logical essay is very different from the analytical one and it is important that you know how to write these types of essays.In order to choose the right essay topics for TOEFL, you need to decide which type of essay that you wish to write. Analytical essay topics are divided into two basic categories. The first one is the thesis statement, which is the central argument or focus of the paper. The second category is the argument or basis of the essay, which gives reasons for the topic. If you are new to writing essays, then you should definitely read up on essay topics for TOEFL to help you create the perfect paper.One of the best ways to decide which essay topics for TOEFL to choose is to read your chosen subject matter and determine if you can write it yourself. If you are unsure of what you will write, then you should pick out some sample essay topics from online resources. You can choose a topic that is closely related to your area of study or something that you feel comfortable writing about. This will help you make the most out of your paper and you will be able to work with it easily and confidently.One of the essay topics for TOEFL that will be incl uded on your test is the word problem. The main objective of this type of essay is to assess the ability of a student to think logically when faced with a word problem. Essay topics for TOEFL need to be clear and must include correct grammar. You should choose a word problem that is related to the essay topic that you are writing.The third category of essay topics for TOEFL that you will find on your test is called Research and the essay will need to include some form of evidence regarding their research. The research essay will be used to evaluate a student's research skills. A major part of the research essay will be a written report about their findings from the research. You should use the examples and scenarios in the research paper to describe how they found their information.Speaking is another part of essay topics for TOEFL that you will find on your test. The discussion paper for this section is used to evaluate a student's speaking skills. The essay topics for TOEFL will n eed to be structured in such a way that they are easy to read and understand. The author should start with a narrative, followed by writing, and ending with the conclusion.You can take some time to figure out which essay topics for TOEFL will be needed to ace your test and the ones that are not. It is important that you have a good grasp of the subjects that are required in this section of the test before you begin writing your essay.

Semiconductors or Quantum Physics Essay - 275 Words

Semiconductors or Quantum Physics (Term Paper Sample) Content: SEMICONDUCTORS OR QUANTUM PHYSICSAuthorà ¢Ã¢â€š ¬s Name:Name of the class:Name of Professor:Name of school:City and state where it is located:Date:IntroductionSolar cellsSolar cells technology has grown over a long period of time and has proved to be beneficial to a modern man in many ways. It is from the Physics semiconductor technology that these revolutions are being created day in day out. The main mechanisms used in this technology is the use of p-n junction transistors technology. Much of this technology is arrived from the use of solid state semi-conductor materials.Quantum PhysicsQuantum Physics proved to be starling and and far reaching in the 20th Century. In this century, many scientific revolutions came up but none contributed more to the human anatomy than quantum Physics. Quantum Physics is a branch physics that deals with study of behaviour of matter at all atomic level. Its use has found many applications in many Science areas like chemistry, Cosmolog y, and Biology. These applications have revolutionised with the inventions like the transistor technology, and laser technology which are ushering a new era in digital technology. Figure 1. 0 shows a modern semiconductor circuit boardFigure 1.0: A modern circuit boardLight bulb technology was started by in the year 1815 by Humphrey. But in the year 1879, inventor Thomas Edison made the electrical light commercially available. Many re-inventions have been done since then including Halogen, Compact Fluorescent Light (CFL) and LEDs. There have been major developments in semiconductors and quantum physics which have led the significant transformation of live in the modern day. The physics of semiconductors have intensively been used in manufacturing electronic components and circuits. The principles of the quantum physics are widely in modern day engineering of solar cells and light bulbsFire as a source of lightIn the documentary called à ¢Ã¢â€š ¬Ã‹Å"changing the globeà ¢Ã¢â€š ¬, th ere is evolution of quantum Physics from the time when fire used to be the source of both heat and light to a time where energy has been conserved almost to a 100% to give out only light. No energy is lost through in form of heat energy. Fats were turned into fuel in candles form but were dangerous and inefficient. Kerosene was later used to light and for heating light bulb was discovered by Thomas Edison and other 22 scientists.Compact fluorescent lighting (CFL)Compact fluorescent lighting (CFL) replaced these incandescent lamps. They are better since they use only 25 percent of the energy and have a life span of around times the life of incandescent lamps. However, they have mercury content which is dangerous to the environment. These lamps work by passing several electrons through mercury gas. It absorbs the energy from the electrons and UV light is produced. This light hits a phosphor coating on the glass of the tube. This phosphor glows with light that we can see. CFLs saves en ergy and eliminates greenhouse effects posed by previous bulbs.Incandescent light bulbsThis bulb worked with a simple principle that it had a filament that light by pushing a number of electrons through a tungsten filament. As the speed of the electrons increases, the more the atoms gets excited. This makes the wire to glow white producing light. But in these bulbs, only 10 percent of the energy applied turned to light. In candescent lights came and phased out halogen based bulbs which are less efficient.Light Emitting Diodes (LEDs)To solve these problems, more innovations are being done and the moist recent one is the use of LEDs for lighting. These are made using sapphire substrate. Tiny light chips are made to grow. These chips are formed using naturally light emitting material called gallium nitride. Research is being done where this LEDS making material will have no sapphire material. The light sources will as tiny as gains of sand.An experiment was done to examine two non-mech anical examples of energy conversion. Law of conservation of energy happens to be one of the most fundamental principles of Physics. It is known that energy can neither be created nor destroyed but can be converted from one form to another. Electrical energy in a light bulb is converted to light and heat.The experiment carried out in this exercise examined these specific energy conversionsExperimentExperimental proceduresA schematic diagram circuit was built as shown in figure 1.1. An ammeter was connected in series and a voltmeter in parallel.Figure 1.1: A schematic diagram for the lab experimentsCurrent and voltage were measured and the power supply unplugged to avoid over heating of the bulb. A 70ml water was added to the beaker and was measured on a digital scale. The initial temperature was measured and the light bulb inserted. Power was then supplied for five minutes and was unplugged. The final temperature of water was measured and recorded. The beaker was then removed out of water and was allowed to cool for and the process was repeated for other light bulbs. In this experiment, the heat from the light bulb goes into both the water and the glass beakerResults and observationThe following results were obtained in experiment 1: CFL (Refer to appendix for calculations)Light Bulb:_ CFL + Clear Water Voltage Current Watts EElectrical 11.4V 0.55A 6.27watts 1881J Ti [ÂC] Tf [ÂC] ÃŽT [ÂC] ÃŽQwater [J] 12.2 13.8 0.7 1412.79 Experiment 2: LED in clear waterLight Bulb:_ LED + Clear Water Voltage Current Watts EElectrical 12.49 0.48 5.9952 1799J Ti [ÂC] Tf [ÂC] ÃŽT [ÂC] ÃŽQwater [J] 19.3 20 0.7 716.26 Experiment 3: Incandescent in clear waterLight Bulb:_ Incandescent + Clear Water Voltage Current Watts EElectrical 10.14 1.67 16.93 5080 Ti [ÂC] Tf [ÂC] ÃŽT [ÂC] ÃŽQwater [J] 17.7 24.4 6.7 5942 Black InkThe following results were obtained after repeating the experiment using black inkExperiment 1: CFL in Black InkLight Bulb:_ CFL + Black Water Voltage Current Watts EElectrical 11.4 0.55 6.27 1881J Ti [ÂC] Tf [ÂC] ÃŽT [ÂC] ÃŽQwater [J] 17.2 19.9 2.7 2324.98 Experiment 2: LED in Black inkLight Bulb:_ LED + Black Water Voltage Current Watts EElectrical 12.49 0.48 5.9952 1798J Ti [ÂC] Tf [ÂC] ÃŽT [ÂC] ÃŽQwater [J] 17.1 18.7 1.6 1375.22 Experiment 3: Incandescent in Black inkLight Bulb:_ Incandescent + Black Water Voltage Current Watts EElectrical 11.4 0.55 6.27 1881J Ti [ÂC] Tf [ÂC] ÃŽT [ÂC] ÃŽQwater [J] 17 24.9 7.9 6325.19 Electrical energyEnergy is measured in Joules. It is defined as the ability to do work. Power is measured in wattsIt is the rate at which work is done. This definition suits electrical ener gy. Anything that electrical energy is a load. The load used in these experiments is the automotive light bulb.Electromagnetic spectrumAs the heat flows in the filament of the light bulb, it normally heats to a high temperature. Electrons gets excited which then occupies higher orbitals of energies. When they return to the lower energy orbitals, they emit quantum of electromagnetic energy, a photon which has a wavelength corresponding to the energy difference between the two electron states. The EM energy emitted by the tungsten filament light bulb has a UV light, a visible light and an infra-red energies. The graph shown on figure 1.2 shows an electromagnetic spectrum emitted by sun and a light bulb.Figure 1.2: electromagnetic spectrum as emitted by the sun and a light bulbEinsteinà ¢Ã¢â€š ¬s Revolutionary Lightà ¢Ã¢â€š ¬Quantum Hypothesis.Light is an energy that is produced by an atom. According to the Einstein paper in March 1905-quantum theory of light, he explained that ligh t is made up of the tiny packets of particles that have energy and momentum but no mass. The particles are called photon. It was also similar idea that Isaac Newton had that light is made up of tiny particles. The atoms release the light photons when their electron are been excited (Greensite, 2003, p.6). Electrons are negatively charged and move around the atoms nucleus. They do have the different level of the energy that depends on the distance from nucleus and speed. The electrons have distinct orbitals depending on the energy levels they occupy. The electron with the highest energy moves the farthest distance from the nucleus. When the atom gains or loses energy, there is a change in the movement of the particles. The electrons in this state are boosted to higher orbital where they hold this position for a while. They are then attracted back to the nucleus at the original orbitals. As the ele...