Science
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4,610 Essays on Science. Documents 3,091 - 3,120
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Physics Coursework - Resistance of a Wire Coursework
GCSE Physics Coursework - Resistance of a Wire Coursework Resistance of a Wire Task To investigate how the resistance of a wire is affected by the length of the wire. Theory What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. it has less resistance. For example, gold has
Rating:Essay Length: 1,495 Words / 6 PagesSubmitted: May 12, 2010 -
Physics Coursework Theory - Resistance of a Wire
Theory behind my experiment Thickness (cross sectional area of the wire), length, and temperature all have some effect on the amount of resistance created in a wire. Another factor is the conductivity of the material we are using. Some metals are just more electrically conductive than others. As long as I use the same type of metal for each wire, my experiment will remain fair. Cross Sectional Area The thicker the wire, the less resistant
Rating:Essay Length: 261 Words / 2 PagesSubmitted: January 14, 2010 -
Physics Coursework: Planning
Physics Coursework: Planning Up to 8 marks are available for planning your practical investigation. As with the other 3 areas of assessment, the criteria you have to meet are hierarchical - you must achieve the lower marks before you can be awarded marks higher up. The Planning Criteria The table below indicates the criteria your work will be marked against. Failing to outline even the most basic of procedures would mean that you could not
Rating:Essay Length: 3,800 Words / 16 PagesSubmitted: December 23, 2009 -
Physics Essay
What’s wrong with the Detroit Lions? It is obvious to me that the laws of physics can be applied to the game of football. However, The Detroit Lions may be unaware of this fact. With there current 0-12 record they are on a losing streak that could be placed in the record books. No team has ever lost every single football of their whole season. What an embarrassing way to be placed in the record
Rating:Essay Length: 791 Words / 4 PagesSubmitted: January 27, 2010 -
Physics in Sports
Christopher Gooden Dr. Jan Yarrison-Rice Physics 101 5 April 2005 Physics in Sports When many people think of sports, the topic of physics doesn't always come to mind. They usually don't think about connecting athletics with academics. In reality math, science, and especially physics, tie into every aspect of sports. Sports are a commonality that brings nations together, Soccer, known as football to most of the world, is said to an unspoken language, which unties
Rating:Essay Length: 257 Words / 2 PagesSubmitted: December 30, 2009 -
Physics Lab
Introduction The purpose of this lab is to examine the motion of an electron, when it encounters a constant magnetic and electric field. We will also observe when the electric field and magnetic field will cancel each other out. This will lead to the electron having no net force acting upon it. By adjusting the values for the magnetic and electric fields, we will be able to check the different paths the electron follows. From
Rating:Essay Length: 674 Words / 3 PagesSubmitted: January 15, 2010 -
Physics Lab Report
ABSTRACT The lab of one dimensional motion is a series of experiments that deal with different types of motion in a single direction. In the first experiment, one dimensional motion of a small cart on an air track is measured in a one photogate system. The acceleration was calculated by the infrared light emitting electrode of the photogate sensing the slacks on the picket fence. The calculation for gravity yielded 9.63 m/s^2, which is consistent
Rating:Essay Length: 4,501 Words / 19 PagesSubmitted: May 1, 2010 -
Physics Lab Speed of Sound in Air
Physics Waves Lab SL Introduction: This lab will investigate the properties of mechanical waves such as a longitudinal wave, focusing on the question: Does a change in the frequency of a wave result in a significant and convincing change in the speed of the wave? Hypothesis: Changing the frequency of the wave will not result in a change in speed because the wavelength will change proportionally as in theory. Student Designed Investigation Procedure/ Planning Procedure:
Rating:Essay Length: 680 Words / 3 PagesSubmitted: November 9, 2009 -
Physics of Baseball
"Baseball's a simple game. You hit the ball. You throw the ball. You catch the ball," said a well-respected baseball manager by the name of Casey Stengel. Mr. Stengel was a baseball man, not a mathematician nor a physicist. Physics and mathematics can be applied to the game of baseball on every pitch, and on every swing of the bat. To understand the physics of the game, it is first necessary to look at
Rating:Essay Length: 3,791 Words / 16 PagesSubmitted: November 11, 2009 -
Physics of Bowling
The one thing that interests me is bowling. I have been playing all my life and after a whole semester of being in Physical Science, I realized that everything has physics in it. One night after going bowling with my roommate I wondered why when I hit the first pin, only seven went down and thus I lost the game. So, I got on the Internet and found a lot of articles and web sites
Rating:Essay Length: 1,204 Words / 5 PagesSubmitted: January 22, 2010 -
Physics of Bowling
The Physics of Bowling The game of bowling can date back to as far as 3200 B.C. It wasn't until the 1930's the British brought the game to the modern day. Throughout its history physics has always taken part in every aspect of the game. It started as a very simple game with very simple objects and became a very simple yet difficult game with very difficult objects. One of those objects is the simple
Rating:Essay Length: 1,131 Words / 5 PagesSubmitted: May 10, 2010 -
Physics of Soccer
Matthew Hemerlein Physics’ of Soccer Eleven men take the field on a warm sunny day in South Korea. Thousands of anxious soccer fans await the blow of the referee’s whistle to commence the culmination of the world’s greatest sporting event, The World Cup. Thirty-two once stood now only two remain .The pitch is fair and the competition is fierce, four time defending champ Brazil looks confident as it glares across at its nemesis for the
Rating:Essay Length: 812 Words / 4 PagesSubmitted: June 10, 2010 -
Physics of the Hybrid Laser
Ten years on from the earliest homepages, and we now find ourselves with weblogs. There are now hundreds of thousands of active weblogs in the world - quite possibly more than a million - almost all of them powered by simple content management systems with names like LiveJournal, Blogger, Movable Type, Bloxsom... There are webloggers in pretty much every country of the world. There are celebrity webloggers, expert webloggers, political dissident webloggers, prison webloggers... Weblogs
Rating:Essay Length: 2,365 Words / 10 PagesSubmitted: March 29, 2010 -
Physics Paper
Question: Do you notice any interesting relation between the directions of the changes in velocity *** experienced by the two pucks? Answer: The directions of the changes in velocity are equivalent in Question: Does there appear to be any interesting relation between the magnitudes of the changes in velocity * and * experienced by the two pucks? Answer: Question: Can you notice a single “rule” which seems to govern all of our 2 dim collision
Rating:Essay Length: 349 Words / 2 PagesSubmitted: November 27, 2009 -
Physics Report
Insulation The aim of this experiment is to investigate the insulative properties of different materials by putting them around a beaker and seeing how they affect the heat loss . I predict that the beaker with the foil will have the least amount of heat loss as it would reflect the heat back in , followed by the bubble wrap which creates a layer of air around the beaker and finally the control beaker with
Rating:Essay Length: 972 Words / 4 PagesSubmitted: November 10, 2016 -
Physiologic Effects of Insulin
Stand on a streetcorner and ask people if they know what insulin is, and many will reply, "Doesn't it have something to do with blood sugar?" Indeed, that is correct, but such a response is a bit like saying "Mozart? Wasn't he some kind of a musician?" Insulin is a key player in the control of intermediary metabolism. It has profound effects on both carbohydrate and lipid metabolism, and significant influences on protein and mineral
Rating:Essay Length: 3,486 Words / 14 PagesSubmitted: February 14, 2010 -
Physiological Adaptations of the Plesiosaur for ‘holding Its Breath’
Physiological Adaptations of the Plesiosaur for ‘Holding its Breath’ By Nathan Eaton One hundred and fifty million years ago, large aquatic species of reptile such as the Plesiosaur dominated the ocean, and were pre-eminent predators of the sea. The branch of now extinct Plesiosaurs, or ‘near lizards’, evolved into variant closely related species specialised to take different niches in the food chain. Such species of Plesiosaur include the phenotypically similar Plesiosauroid and Pliosauroid. The physiological
Rating:Essay Length: 1,260 Words / 6 PagesSubmitted: June 13, 2010 -
Physiological Facets of Emotion
1 ________________________________________ Physiological Facet Of Emotion New York University ________________________________________ Background The scientific study of the facial expression of emotion began with Charles Darwin’s The Expression of Emotions in Man and Animals, first published in 1872. Among his many extraordinary contributions Darwin gathered evidence that some emotions have a universal facial expression, cited examples and published pictures suggesting that emotions are evident in other animals, and proposed principles explaining why particular expressions occur for particular
Rating:Essay Length: 1,528 Words / 7 PagesSubmitted: November 20, 2009 -
Physiological Responses to Distance Treadmill Running
Exercise: Distance Treadmill Running When we are challenged with any physical task, the human body responds through a series of integrated changes in function that involve most, if not all, of its physiologic systems. Movement requires activation and control of the musculoskeletal system; the cardiovascular and respiratory systems provide the ability to sustain this movement over extended periods. Physiological Responses: From experience I know that while on the treadmill before long my chest is heaving,
Rating:Essay Length: 325 Words / 2 PagesSubmitted: November 12, 2009 -
Phytoliths and Archaeology; an Amazing Field That Never Gained Popularity (with Good Reason)
Phytoliths are a durable floral microfossil formed by silica absorbed by a plant during its life. Although the usefulness of phytoliths in archaeology has been known for nearly a century, the field (independently) has not attained much popularity. Despite the fact that the yields of evidence and information from phytoliths are truly amazing, the field itself is at times more tedious than dendrochronology, causing a delay in the development of the use of phytoliths, as
Rating:Essay Length: 3,352 Words / 14 PagesSubmitted: January 14, 2010 -
Pica
PICA This report is on the disease called Pica, it is a eating disorder , it can ucuarr at any time to anyone , this is a serious disease . It causes the woman to have cravings for such things as playdoe or sand . Pica is a serious eating disorder that can cuase you to need surgery . It can also cuase you to need dental work , phosphors intoxication cuased by the
Rating:Essay Length: 358 Words / 2 PagesSubmitted: December 25, 2009 -
Picea Brewerana – Brewer Spruce
Brewer Spruce 1 Abstract Brewer spruce (Picea breweriana), named for its first collector, is often considered "mysterious" because this attractive conifer is found on seldom-visited high mountain ridges and steep north slopes. Its other common name, weeping spruce, is derived from the distinctive feature of many rope-like branchlets that hang in a fringe from all but the topmost slender horizontal limbs. This branching habit results in many knots in the wood, which has little commercial
Rating:Essay Length: 2,309 Words / 10 PagesSubmitted: November 17, 2009 -
Picking
Of all warehouse processes, order picking tends to get the most attention. It’s just the nature of distribution and fulfillment that you generally have more outbound transactions than inbound transactions, and the labor associated with the outbound transactions is likely a big piece of the total warehouse labor budget. Another reason for the high level of importance placed on order picking operations is its direct connection to customer satisfaction. The ability to quickly and accurately
Rating:Essay Length: 545 Words / 3 PagesSubmitted: May 2, 2010 -
Picture Archive and Communication System Architecture
Picture Archive and Communication System Architecture The advent of technology medical equipment including computed tomography (CT), magnetic resonance imaging (MRI), and radiography (x-ray) have become quicker and more efficient. Images and data from these modalities are memory intense and require more film, storage, and handling than was required in the past. As the technology has increased in all areas of the medical field, so has the patient need for more exams and procedures have also
Rating:Essay Length: 538 Words / 3 PagesSubmitted: November 20, 2009 -
Pig - Personal Essay
The dissection of the fetal pig in the laboratory is important because pigs and humans have the same level of metabolism and have similar organs and systems. Also, fetal pigs are relatively inexpensive. Materials: Safety goggles String Dissecting pins Lab apron Scalpel Scissors Dissecting gloves Ruler Preserved Pig Dissecting Tray Our pig was 13 inches long and measured from its nose to the it’s tail. I broke both of its arms and legs when I
Rating:Essay Length: 300 Words / 2 PagesSubmitted: December 20, 2009 -
Pigs
In the southern English colonies around Chesapeake Bay and in the Carolinas, the first settlers built wooden houses with structural posts placed directly in the earth. These houses were highly susceptible to rot and attack by termites, and none remain. A few ostentatious brick houses meant to display wealth have survived from the early colonial period. They include the Adam Thoroughgood house (1636) near Norfolk, Virginia, and the Arthur Allen house (called Bacon’s Castle; 1650-1655)
Rating:Essay Length: 433 Words / 2 PagesSubmitted: January 20, 2010 -
Piranhas
Anyone can keep fishes , no matter how small their home , and they are particularly suitable for apartment-dwellers , especially those in highrise blocks where the keeping of other pets may be impractical or even prohibited . There are other advantages too ; Fish won't need exercising , They do not disturb your home with messy fur or feathers , They can not escape like other pet reptiles , They can not make noises
Rating:Essay Length: 435 Words / 2 PagesSubmitted: May 1, 2010 -
Pituitary Surgery
I will give you a brief overview of the history of pituitary surgery. Sir Victor Horsley was the first surgeon to operate on a pituitary adenoma 1889 This is his drawing of the middle fossa approach that was used.Later he also used a subfrontal approach.His mortality rate was 20 % which should be compared to the results of other contemporary surgeons with mortality between 50-80 % The first successful transsphenoidal removal of a pituitary adenoma
Rating:Essay Length: 1,093 Words / 5 PagesSubmitted: November 20, 2009 -
Placebo Paper
“Placebo effect is the term applied by medical science to the therapeutical and healing effects of inert medicines and/or ritualistic or faith healing manipulations. [1] [2]. When referring to medicines, placebo is a preparation which is pharmacologically inert but which may have a therapeutical effect based solely on the power of suggestion. It may be administered in any of the ways in which pharmaceutical products are administered.[3] Sometimes known as non-specific effects or subject-expectancy effects,
Rating:Essay Length: 1,622 Words / 7 PagesSubmitted: November 25, 2009 -
Plague
The Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli. Genetic studies place them among the Proteobacteria, and they are given their own order (Enterobacteriales), though this is sometimes taken to include some related environmental samples. Members of the Enterobacteriaceae are rod-shaped, and are typically 1-5 µm in length. Like other Proteobacteria they have Gram-negative stains, and they are facultative anaerobes, fermenting sugars to
Rating:Essay Length: 269 Words / 2 PagesSubmitted: December 6, 2009