Thursday, October 17, 2019
Technologicial Entrepreneurship & Innovation Essay
Technologicial Entrepreneurship & Innovation - Essay Example Lack of communication and coordination, thus becomes an impediment on the invention. Individuals working alone do not have to manage teams and thus can fully concentrate on the work at hand. Jewkes also points out that research organizations hire people who may not be totally research driven. The passion to achieve something new is absent from many people working within an organization. For the individual worker, the passion is there since he utilizes his own resources and his efforts largely go unpaid. Despite this, the individual worker pursues his aim since he is driven by the passion of invention. However, research organizations set the pace for the invention which would otherwise be dependent on the inventorââ¬â¢s spark of genius which could take any length of time if the inventor is left to his own devices. While Jewkes fights against the concept of individuals working in teams, he also provides certain pros of the position. He believes that teams should be encouraged so as to provide support to the individual worker. According to Jewkes, the purpose of teams should be to help the actual inventor to gain support from the men who are under his command. Also Jewkes believes that teamwork has become imperative in this era of specialization. This is because as science and technology have advanced to new levels, it is difficult for the individual to know everything. This then demands the need for team work where members fill in the information required to work on complex tasks. b. Innovation arising among individuals or small enterprises vs. large, highly structured enterprises (about 500 words) Innovation arising among individuals is the preferred form of innovation in the opinion of Jewkes. To support this claim, Jewkes offers various examples as well as...Apple iPod was introduced in 2000 as a reaction to music players that were already in the market but none was as sleek as the Apple iPod. The ten stereotypes developed by Scott Burken do not absolutely hold true for this innovation. As times, the iPod defies the stereotypes and takes in own path. One stereotypes that iPod defies from the ten stereotypes is the reaction of the public towards the product. Previously consumers were using large music players that were bulky and not as convenient as the iPod, thus when presented with the iPod; they fell in love with it. Apple Inc. already had a reputation of delivery top quality innovative products and this reputation went along with iPod. Thus iPod was an instant success among the public since they were given a more beautiful and bigger machines for playing music than they previously had. Burken, on the other hand, asserts that innovations when introduced in the market do not receive the reaction that they do after some time. They fail to generate interest among the customers; however, this was not the case with Appleââ¬â¢s iPod. Another stereotype that Apple iPod defies is that it was developed under the guidance of Steve Jobs. Steve Jobs, before being an innovator, is a manager.
Ethical Argument Choose a topic and argue the ethical side opposite of Essay
Ethical Argument Choose a topic and argue the ethical side opposite of the accepted norm - Essay Example Such could be the results of miscues especially of decisions, which are shadowed by the mists of pride and vested interests and the neglect of some ethical and moral guidelines. War had been a way of life for early civilizations. It was primarily the direct result of segmented societies where communities are tied by tribal concerns of control. The need for survival requires dominance within an area. To have a wider space means an assurance for more resources more security for living. The evolution of societies from early nomads until the present is marred by a lot of small and big wars. We have two major world wars and other big war yet to come, which doomsday seers predicted to cause an end to humanity. Therefore, whether we like it or not, war is an accepted norm. But trends in war have changed from the way it was fought in prehistoric and olden times. The rise of deep concern to human lives created awareness among the government leaders and ordinary persons alike the importance of preservation of life. War has become a form of arrogance and aggression. Wars fought today in the same cause, as thousand years ago is condemnable act. Today, war becomes a means of defense to suppress the interest of those who want to dominate a certain territory without respect for human rights. When the US led a campaign in Kuwait, it was meant to liberate a nation. When US challenge the North Koreans or other nations going into nuclear program, it was intended to warn them of the possible effects in future ambitions of arms development. Since the idea about war has shifted from barbaric acts of territorial grabbing to more of defensive acts the norm shifted to international recognition of human rights. Nations, great or small, share equal right and peoples of d ifferent races, colors, and territory show respect with one another. Many nations joined international organizations to recognize everyone's rights. The 21st century is the turning point of history and witness to the shift from the savage war of the past to humanistic concern of the present and the future. But the declaration of the war on terror after the 9/11 events caused a global war against enemies we don't know. The campaign has caused more casualties of innocent lives, arrests of innocent persons, and branding of several organizations who air grievances against their nations as terrorists. The war was indeed claimed to have been launched to secure the world against terrorists, but it has gone to a point that human rights were already compromised. But terrorism is a big issue and requires some moral judgment to qualify or consider certain acts as a form of terrorism. There are accepted definitions of terrorisms but interpretations differ. As Record stated: The definitional mire that surrounds terrorism stems in large measure from differing perspectives on the moral relationship between objectives sought and means employed. It is easy for the politically satisfied and militarily powerful to pronounce all terrorism evil regardless of circumstance, but, like it or not, those at the other end of the spectrum are bound to see things differently (8). As a result the War on Terror created confusion among the young Americans, who were taught about the morals of war and peace. The moralist consider the "attacks on the World Trade Center and the Pentagon not acts of war but as a species of natural disaster, requiring unstinting generosity towards the
Wednesday, October 16, 2019
Leadership Plan for Hurricane Andrew Research Paper
Leadership Plan for Hurricane Andrew - Research Paper Example This paper will come up with a leadership plan for addressing the case study outlying Hurricane Andrew and the challenge it brought to the Florida communities. Hurricane Andrew was a catastrophic cyclone that was, at that time, the worst hurricane in the history of the United States. The fourth tropical hurricane, initially named the storm, and then the 1992 Atlantic hurricane season, Hurricane Andrew originated from a tropical wave over the Atlantic on August 16, 1992, from West Africa. At first, strong wind shear stopped much escalation (Waugh, 2000). A decline in shear the next day allowed the depression to strengthen turning into Tropical Storm Andrew by 1200 UTC. This was on 17th August (Waugh, 2000). Nevertheless, increased wind shear on 18th August diminished convection linked to the storm. In the next two days, wind gradient drastically reduced, and Andrew became a minimal cyclone on August 22. Thereafter, the hurricane turned westward under the power of a high-pressure system and began quickly to strengthen later that day. Shortly before moving through the Bahamas, Hurricane Andrew strengthened into a Category 5 cyclone on 23rd Au gust. The cyclone weakened vaguely over the Bahamas to a Category 4 cyclone, but shortly re-intensified into a Category 5 cyclone on 24th August before making landfall on Elliott Key, and afterwards in Homestead, Florida. The hurricaneââ¬â¢s effects were mostly felt in Florida as it resulted in mass human displacement and property damage. Assessors estimated that the damages from the hurricane resulted in almost $20billion making it the most devastating and expensive cyclone ever to hit the U.S. (Waugh, 2000). Hence, it was vital to make sure that people recovered fully from the hurricaneââ¬â¢s effects and were restored to their previous lives. The United States had a Federal Response Plan (FRP) in place. This was their response arm in case of such calamities. However, the
Ethical Argument Choose a topic and argue the ethical side opposite of Essay
Ethical Argument Choose a topic and argue the ethical side opposite of the accepted norm - Essay Example Such could be the results of miscues especially of decisions, which are shadowed by the mists of pride and vested interests and the neglect of some ethical and moral guidelines. War had been a way of life for early civilizations. It was primarily the direct result of segmented societies where communities are tied by tribal concerns of control. The need for survival requires dominance within an area. To have a wider space means an assurance for more resources more security for living. The evolution of societies from early nomads until the present is marred by a lot of small and big wars. We have two major world wars and other big war yet to come, which doomsday seers predicted to cause an end to humanity. Therefore, whether we like it or not, war is an accepted norm. But trends in war have changed from the way it was fought in prehistoric and olden times. The rise of deep concern to human lives created awareness among the government leaders and ordinary persons alike the importance of preservation of life. War has become a form of arrogance and aggression. Wars fought today in the same cause, as thousand years ago is condemnable act. Today, war becomes a means of defense to suppress the interest of those who want to dominate a certain territory without respect for human rights. When the US led a campaign in Kuwait, it was meant to liberate a nation. When US challenge the North Koreans or other nations going into nuclear program, it was intended to warn them of the possible effects in future ambitions of arms development. Since the idea about war has shifted from barbaric acts of territorial grabbing to more of defensive acts the norm shifted to international recognition of human rights. Nations, great or small, share equal right and peoples of d ifferent races, colors, and territory show respect with one another. Many nations joined international organizations to recognize everyone's rights. The 21st century is the turning point of history and witness to the shift from the savage war of the past to humanistic concern of the present and the future. But the declaration of the war on terror after the 9/11 events caused a global war against enemies we don't know. The campaign has caused more casualties of innocent lives, arrests of innocent persons, and branding of several organizations who air grievances against their nations as terrorists. The war was indeed claimed to have been launched to secure the world against terrorists, but it has gone to a point that human rights were already compromised. But terrorism is a big issue and requires some moral judgment to qualify or consider certain acts as a form of terrorism. There are accepted definitions of terrorisms but interpretations differ. As Record stated: The definitional mire that surrounds terrorism stems in large measure from differing perspectives on the moral relationship between objectives sought and means employed. It is easy for the politically satisfied and militarily powerful to pronounce all terrorism evil regardless of circumstance, but, like it or not, those at the other end of the spectrum are bound to see things differently (8). As a result the War on Terror created confusion among the young Americans, who were taught about the morals of war and peace. The moralist consider the "attacks on the World Trade Center and the Pentagon not acts of war but as a species of natural disaster, requiring unstinting generosity towards the
Tuesday, October 15, 2019
Caring for Children and Young People Booklet Essay Example for Free
Caring for Children and Young People Booklet Essay Unit 10 caring for children and young people assignment 2 of 2, report There are 3 types of maltreatment: abuse, neglect, bullying and harassment. Abuse can be physical, emotional (intellectual) and sexual. Signs of physical abuse are: * Unexplained injuries that sound untrue or doesnââ¬â¢t fit in with the injury * Injuries on a non-mobile baby or head injuries on a child who is less than one year old * Nervous behaviour, jumpy, watchful and cautious, scared of psychical contact ââ¬â shrinking back when touched * Difficulty in making friends and trusting others * Refusing to undress for physical education or medical examination, wearing too many clothes in warm weather to cover up the injuries * Chronic running away and school absences * Repeated attendance at accidentemergency * Self-harm and self-destructive behaviour, being bullied * Aggression towards others, bullying others * Lying, stealing, getting into trouble with the police Signs of emotional abuse are: * Delayed development ââ¬â emotionally immature for age, physically small and intellectually behind peers * Nervous behaviour such as rocking , hair twisting , self-harm * Speech disorders * Extremes of passive or aggressive behaviour * Fear of making a mistake and a overreacting to a mistake * Fear of new situations but can be over friendly with strangers * Continually putting themselves down * Inability to be spontaneous * Inability to concentrate Signs of sexual abuse are: * Medical problems in the genital area, sexually transmitted illnesses, bed wetting * Being overly affectionate and sexually knowing ââ¬â demonstrating sexually inappropriate behaviour, flirting or graphic, sexualised play * Changes in behaviour ââ¬â withdrawn, sad or even more extreme ââ¬â depression, self-harm and attempts to suicide * Eatingà disorders such as anorexia, bulimia, loss of appetite or compulsive overeating * Behaving than much younger child for example thumb-sucking or having a cuddly toy * Thinking badly about them and at the same time trying to be ultra-good and overreacting to criticism * Being afraid of someone they know, not wanting to be alone with them, lack of trust * Being scared of physical contact and fear of undressing Signs of child being neglected are: * Poor personal hygiene * Underweight or constantly hungry, may be stealing food * Always tired and cannot concentrate to learn or play * Clothing inadequate for weather, too small, dirty * May have untreated medical conditions e. g. cough, cold * No friends, might be bullied, socially isolated * Destructive tendencies Risk of maltreatment can be within family, outside family for example in care setting or strangers. Children and young people are more at the risk to be maltreated by people known by them. When a child has specific learning difficulties, communication difficulties, specific development delay, genetic influence, difficult temperament, physical illness, academic failures and low self-esteem then the child is more at risk for maltreatment. Consequences of maltreatment vary depending on childââ¬â¢s age and the type of maltreatment. The long term consequences of maltreatment on children and young people who are not helped effectively have a personal cost and a cost to a society as a whole. Children with constant fear that is experienced when being abused can affect brain development with long life consequences. Brain scans show the difference between abused children and non-abused children. Child from 0 to 3 years needs to bond ââ¬â make a secure and trusting relationship with the main caregiver in order to develop health. Ability to feel empathy, compassion, trust and love is based on these early experiences. If bonding is not there then the relationship between caregiver and child is not right. There are four theories of maltreatment: medical, sociological, psychological and feminist. The medical model of child abuse is where abuse is viewed as a disease which is called the battered-child syndrome which is a clinical condition is children whoà have received abuse and is a cause of permanent injury or even death. The sociological model of maltreatment defines child abuse in terms of social judgement of parental acts which are considered inappropriate by cultural standards and practices. Sociological models focus on contextual condition such as poverty that give rise to abuse. The psychological model of maltreatment is an attachment theory and says that a child needs to develop a relationship with at least one caregiver for development to occur normally. The feminist model say that feminist believe that men like to have all power and they can get it by abusing children or to regain power if they have lost it. If child abuse is suspected then it should be immediately reported. It depends on where the child abuse is suspected, people should always follow the policies of the setting and implementing safe working practices. For example if you work in school or nursery you would talk to the designated person for example manager or head teacher. People should write down causes for concern as and when they happen recording as much information down as possible and writing down only the facts. So if a child tells you something you should write it down exactly as they said it and not what you think they mean. Depending on what has been disclosed would depend on how you react. For example if child has a bump on their head and is very quiet about it and doesnââ¬â¢t tell you it doesnââ¬â¢t mean that they have been abused. You have to know their parents too. If a child discloses something which is of concern to you for example they reveal that they have been abused then action should be taken immediately to ensure childââ¬â¢s safety. A person has a responsibility to maintain confidentiality according to policies of the setting. Person who is suspecting the abuse should always listen and communicate at children or young personââ¬â¢s pace and without any pressure and always take the child seriously. Strategies and methods that can be used to support children, young people and their families where abuse is suspected or confirmed is that person should be respectful towards these children and have a child centred approach. Active support should be provided which empowers children and young people. Their self-confidence, self-esteem, resilience and assertiveness should be supported because it is really low when people were abused and it is needed to really support children and young people because it would have affected them. You should always share information and not to keep secrets from them but givingà information according to their age because you wouldnââ¬â¢t want to give too much information or inappropriate information for example to a 3 year old and you would talk differently with children than with young people. For families it is important to develop supportive relationships with parent and families and involving parents in the assessment of children needs to help them not to make the same mistakes in the future and to make them know what the children needs to have. People should always help parents to recognise the value and significance of their contributions and encourage them to develop their parenting skills. To minimise the effects of abuse you should always encourage expression of feelings within acceptable boundaries to help them deal with their emotions and to help them improve their self image. Helping them to build self esteem and confidence is also really important, for example by play therapy or counselling. Rasheed, Elizabeth; Irvine, Jo; Hetherington, Alison. BTEC Level 3 National Health and Social Care. London, GBR: Hodder Education, 2010. p 224. http://site.ebrary.com/lib/southessex/Doc?id=10448710ppg=235 Copyright à © 2010. Hodder Education. All rights reserved. http://www.phac-aspc.gc.ca/ncfv-cnivf/pdfs/nfnts-childneglect_e.pdf http://forums.nurseryworld.co.uk/showthread/c23d171e-b642-4e2a-a09c-d21a022f5ca5/ The Battered-Child Syndrome, July 7, 1962. (brak daty). 03 19, 2012 http://jama.ama-assn.org/content/181/1/17.abstract
Monday, October 14, 2019
Sports Biomechanics and Functional Anatomy
Sports Biomechanics and Functional Anatomy Introduction: Biomechanics is the sport science field that applies the laws of mechanics and physics to human performance, in order to gain a greater understanding of performance in athletic events through modelling, simulation and measurement (Wood, 2009). According to Mcginnis, (2004), Biomechanics is useful to sports and can identify what forces may have caused an injury, how to prevent the injury from recurring and what exercises may assist for injury rehabilitation. It can be used for alternations in technique, equipment or training to prevent or rehabilitate injury. The general role of Biomechanics is to understand the mechanical cause-effect relationships that determine the motions of living organisms. In relation to sport, Biomechanics contributes to the description, explanation, and prediction of the mechanical aspects of human exercise, sport and play. Sports biomechanics offers methods by which the very fast actions which occur in sport can be recorded and analysed in detail. An importa nt application of sports biomechanics with any sport is the definition and understanding of skills. This can help in the coaching process and as a result enhance the learning and performance of those skills (Reilly and Williams, 2003). When looking at golf it is clear to see a lot of skill is involved during the swing. Hung and Jani, (2004) stated that the golf swing is one of the most complex biomechanical motions a human can make in sport. The aim of the golfer must be to make a consistent strike of the ball to propel it in the desired direction for a given distance. Furthermore the hip plays an important role in the golf swing. The Hip joint: The hip joint is one of the largest and most stable joints in the body. It is a ball and socket joint that consists of the head of the femur connecting with the acetabulum of the pelvic girdle. The pelvic girdle, including the hip joint plays an important role in the supporting the weight of the body while offering mobility by increasing the range of motion in the lower extremity. The acetabulum is the concave surface of the ball and socket joint, facing anteriorly, laterally and inferiorly. Furthermore the spherical head of the femur fits snugly into the acetabular cavity, giving the joint both congruency and a large surface. Both the femoral head and the acetabulum have large amounts of spongy trabecular bone that facilitates the distribution of the forces absorbed by the hip joint (Floyd and Thompson, 2001; Nordin and Frankel 2001; Uys, 2004). Ligaments of the hip: According to Callaghan et al, (2006) several strong ligaments reinforce the capsule of the hip joint. These include the iliofermoral ligament, the pubofemoral ligament and the ischiofemoral ligament. The iliofemoral ligament is the strongest ligament in the body and helps to prevent extension of the femur when the body is standing erect. It is a Y-shaped band of very strong fibres that connects the lower front iliac spine of the coxal bone to a bony line (intertrochanteric line) extending between the greater and lesser trochanters of the femur. However the pubofemoral ligament extends between the upper portion of the pubis and the iliofemoral ligament. Its fibres also blend with the fibres of the joint capsule of the hip joint. The ischiofemoral ligament is made up of a band of strong fibres that originate on the ischium just behind the acetabulum. These fibres blend with the fibres of the joint capsule of the hip. (Pickering, 2009) Muscles of the Hip: The muscles of the hip joint are those muscles that cause movement in the hip. Most modern anatomists define 17 of these muscles, although some additional muscles may sometimes be considered (Mind Body Motion, 2007). These are often divided into several groups. These muscles control the movements of the hips. According to Ãâ"zkaya et al, (1999) the psoas, iliacus, rectus femoris, pectineus and tensor fascia latae are the primary hip flexors. These are also used to carry out activities such as running, walking and kicking. The gluteus maximus and the hamstring muscles are hip extensors. The gluteus medius and gluteus minimus are hip abductor muscles providing for the inward rotation of the femur. The gluteus medius is also the primary muscle group stabilizing the pelvis in the frontal plane. The adductor longus, adductor brevis, adductor magus and gracilis muscles are the hip adductors and also provide for the outward rotation of the femur. Movement of the hips: The hip joint allows for the greatest range of movement as it has the capacity to move in three planes, about three axes. It also has a great deal of mobility, which allows normal locomotion in the performance of daily activities. Kolt and Mackler, (2003), state that the hip joint has three degrees of freedom of motion which include flexion-extension in the sagittal plane, abduction-adduction in the frontal plane (figure 3.2) and external-internal rotation in the transverse plane. Golf The modern golf swing has evolved with this use of technology, both in equipment and analysis; as well as the physical training the golfers now go through. The golf swing is a very complex body motion, involving a large range of movement of the upper limbs that act as a link between the golf club and the body, with the lower limbs acting as the main movement promoting areas. Limitations in the body in terms of flexibility, muscular strength, endurance, or power can create faults in the swing from a biomechanical perspective. As a result, most of the successful golfers in the world today, are relatively fit, flexible and strong compared to in the older generation of golfers. Improved technology in gyms has given golfers the opportunity to strengthen specific and key muscles used in the swing. Hip rotation is very important to the effectiveness of the golf swing. According to Hill, (2007), it holds the key to a powerful swing. To increase power and ball-striking ability the hips need to rotate properly during the swing. According to Atherton,(2009), most amateur golfers rotate their hips too far during the backswing, which makes it difficult for them to get their hips to open up to the target at impact, a key component of a successful swing. However, the increased risk of hip injury is a relatively recent hazard for golfers, arising from the greater rotation favoured by the modern golf swing. This adaptation of this technique itself reduced the incidence of low-back injury among golfers. The downswing begins with a forward movement of the hips that, with good golfers, actually begins approximately 0.1 seconds before the club head reaches the limit of the back swing. This moving forward of the hips rotates the whole upper body and moves both levers through the first part of the downswing (Hay, 1993). The forces responsible for this forward movement of the hips and the lesser forces exerted by the same hip and leg muscles later in the downswing have been estimated to account for 2.5 hp of the total 3-4 hp generated in a good drive. Thus it can readily be seen that the muscles of the hips and legs constitute the main source. A series of EMG studies have described the role of the hip muscles during the golf swing (Thain and Alistair, 2002). A study by Tsai et al, (2004), showed that hip abduction strength was significantly higher in better golfers. In addition it stated all the hip movements tended to be stronger in the best golfers who had the lowest handicaps and longest driving distances. In one study performed by the University of Umea in which the muscle activities in 13 male professionals while performing a golf swing were analysed using dynamic surface electromyography (EMG) and the muscle activities were measured in percent of maximum manual muscle testing (MMT) of each muscle. During the forward swing, gluteus maximus, expressed the highest muscle activity during a complete golf swing (84%). This indicates that especially the trailing side, gluteus maximus, is an important hip stabiliser as the golfer shifts the weight to the target side and the golf club begins to accelerate (Grinell, 1999). In golf the hip is especially exposed to high-velocity internal rotation on the downswing, requiring a great deal of eccentric gluteus muscle control. Set-up, ball positon, alignment and posture are essential for a good swing. However according Shamus, ( 2001), the most common characteristic of an improper setup position is failing to use a hip-hinge motion to obtain the primary spine angle. Furthermore evolved technology has made it easier for golfers and coaches to analyse the golf swing and correct mistakes made by the golfer. Technology advances: (ASTAR and Powerstool) The Astar digital video technology is the latest, highly sophisticated software that evaluates and analyses recorded golf swings. This means that golf instructors can literally capture and illustrate every aspect of a students swing to determine and remedy any problem areas. It automatically creates a video file of the entire desire motion (for a golf swing from address to follow-through). Astar includes all necessary functionality to analyze technical performance, hence improve the golf swing by this method of analysis. By using the very latest A Star professional software, golf swings can be analysed from many different angles and a plan can be put in place for the improvement of any golf swing (ASTAR, 2006). The powerstool is another example of advanced technology used to improve the golf swing. It mimics the perfect golf swing as close as possible enabling the golfer to get inot the most efficent position (Strachan, 2009).The powerstool makes sure the golfer achieves the right amount of hip turn and shoulder turn. This helps to reduce tension and strain that is common with over turning. Technology in footwear and insoles has also developed throughout the years making golf shoes more comfortable and blister free. It has also been proven that specific golf shoes reduce injuries of the lower extremities. In addition, according to Light, (2008), the use of custom foot orthoses to change the mechanics of foot function may improve hip extension and create prolonged relief of low back pain symptoms. As a result, they provide a viable alternative to surgery to treat hip and back painmaking it pain free for golfers. Orthoses are also helpful for supporting the arch of the foot, offloading specific pressure points in the foot, and cushioning the heel. Furthermore it was claimed that orthoses could be a non-invasive approach to improving biomechanics and possibly pain. ECCO golf, (2009) states that their golf shoes use a double-layer inlay sole that ingeniously absorbs heel force, reducing the impact felt by your knees, hip and back. That same heel force is also used to power an air-circulation system that ensures a fresh, dry and cool environment for your feet making it comfortable for the golfer. In conclusion, it is clear to see that technology is evolving a rapid rate with new advances in biomechanical parameters. Advances in analysis and equipment has been proven to improve general performance of all sports and even holds an important role in reducing injury and the rehabilitation of injury.
Sunday, October 13, 2019
Determining The Ratio Of Circumference To Diameter Of A Circle :: essays research papers
Determining the Ratio of Circumference to Diameter of a Circle à à à à à In determining the ratio of the circumference to the diameter I began by measuring the diameter of one of the si objects which contained circles, then using a string, I wrapped the string around the circle and compared the length of the string, which measured the circumference, to a meter stick. With this method I measured all of the six circles. After I had this data, I went back and rechecked the circumference with a tape measure, which allowed me to make a more accurate measure of the objects circumferences by taking away some of the error that mymethod of using a string created. à à à à à After I had the measurements I layed them out in a table. The objects that I measured were a small flask, a large flask, a tray from a scale, a roll of tape, a roll of paper towels, and a spraycan. à à à à à By dividing the circumference of the circle by the diameter I was able to calculate the experimental ratio, and I knew that the accepted ratio was pi. Then I put both ratios in the chart. à à à à à By subtracting the accepted ratio from the experimental you find the error. Error is the deviation of the experimental ratio from the accepted ratio. After I had the error I could go on to find the percentage error. The equation I used was, error divided by the accepted ratio times 100. For example, if I took the error of the experimental ratio for the paper towels, which was 0.12. I took that and divided it by the accepted ratio giving me .03821651. Then I multiplied that by 100 giving me about 3.14. Using these steps I found the percentage error for all of the objects measured. à à à à à The next step was to graph the results. I was able to do this very easily with spreadsheet. I typed in all of my data and the computer gave me a nice scatter block graph. I also made a graph by hand. I set up the scale by taking the number of blocks up the side of my graph and dividing them by the number of blocks across. I placed my points on my hand drawn graph. Once I did this I drew a line of best representation because some of the points were off a little bit due to error. à à à à à By looking at my graph I can tell that these numbers are directly proportional to each other. In this lab it was a good way to learn about error
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