Centripetal Force Essay Example

Centripetal Force Essay Experiment: Uniform circular motion and centripetal force Results Mass(kg)| Radius(m)| Velocity(m/s)| CentripetalForce[Calculation](kg. m/s2)| CentripetalForce[Measure](kg. m/s2)| StandardDerivation(%)| 0. 02406| 0. 0900| 2. 023| 1. 094| 0. 7349| 32. 8| 0. 02406| 0. 0900| 2. 584| 1. 785| 1. 446| 19. 0| 0. 02406| 0. 0900| 3. 153| 2. 658| 2. 351| 11. 4| 0. 02406| 0. 0900| 3. 702| 3. 662| 3. 374| 7. 86| 0. 02406| 0. 0900| 4. 238| 4. 801| 4. 525| 5. 75| Force versus Mass Mass(kg)| Radius(m)| Velocity(m/s)| CentripetalForce[Calculation](kg. m/s2)| CentripetalForce[Measure](kg. m/s2)| StandardDerivation(%)| 0. 109| 0. 0900| 3. 86| 1. 805| 1. 519| 15. 8| 0. 0225| 0. 0900| 3. 86| 3. 725| 3. 825| 2. 68| 0. 0437| 0. 0900| 3. 86| 7. 235| 7. 531| 4. 09| 0. 0672| 0. 0900| 3. 86| 11. 13| 11. 615| 4. 36| Force versus 1/Radius Mass(kg)| Radius(m)| Velocity(m/s)| CentripetalForce[Calculation](kg. m/s2)| CentripetalForce[Measure](kg. m/s2)| StandardDerivation(%)| 0. 0437| 0. 0900| 3. 86| 7. 235| 6. 87 9| 4. 92| 0. 0437| 0. 0800| 3. 86| 8. 130| 8. 253| 1. 51| 0. 0437| 0. 0700| 3. 86| 9. 301| 9. 145| 1. 67| 0. 0437| 0. 0600| 3. 86| 10. 852| 10. 118| 6. 76| Interpreting data Based on the graph plotted, we can know that : F (centripetal force) is directly proportional to v2 (velocity2) * F (centripetal force) is directly proportional to m (Mass) * F (centripetal force) is inversely proportional to R (Radius) And so, it is proved that the centripetal force of the uniform circular motion ; F=mv2R Discussion * As for the first experiment ( Force versus velocity? ), due to some technical problem all the data that had been obtained from the experiment couldn’t be saved thus all the data are taken with approvement from our friend , Gary Tan ( General Physics and Experiment (I) [PHY 1011-09-00] ). * According to the Force versus velocity? , graph , as the velocity increases the centripetal force increases as well. The same thing goes for the Force versus Mass graph , as the mass incr eases the centripetal force also increases. As for Force versus 1/radius graph, the more the radius increases the more the centripetal force decrease. Thus , the hypothesis is accepted. * There is some difference between the actual value of centripetal force which can be obtained through formula ( mv? /r) and the measured value of centripetal force as shown in the table. This is due to some error made in experiment which are basically divided into two types; systematic error and random error. Systematic error are the unavoidable error due to the defect of the equipment itself meanwhile random error are errors made by human such as parallax error. * When handling this experiment , there are some precaution that need to be taken in order to obtain the best result. Firstly , its best to avoid the parallax error when reading the ruler. Our eyes should be perpendicular to the ruler when reading the measurement to obtain an accurate reading. On the other hand as for the force versus 1/radius experiment , one should make sure that the velocity is constant through out the whole experiment by increase the voltage for each repetition. We will write a custom essay sample on Centripetal Force specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Centripetal Force specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Centripetal Force specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Furthermore , the wire that are hung at the force sensor should be in straight and directly perpendicular towards the pulley. These precautions are important as it would affect the result of one’s experiment. CONCLUSION * In conclusion , one’s centripetal force can be obtained from the formula F=mv2R . Reference * Hugh D. Young, Carnegie Mellon. (2012): University Physics with Modern Physics, 13th edition. ( Page 154,155 ) [1] (Centripetal force) | | | | | 12| e-mail| jais[emailprotected] ac. kr| | 2013142068| | 323? | | Azrin Lau| | |

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buy custom The Impact of Industrial Technology essay The sheer imagination of a world without industrial technology is devastating, considering the role that these technologies have had on industrial revolution. Before these technologies were invented, both children and adult members of the society had to toil from dawn to dark in order to provide sufficient food, shelter and clothing for all. However, the advent of industrial technology has had an unimaginable impact on the environment of work as well as the manner in which people work. The impacts of industrial technology on the human environment were felt during the first industrial revolution. During this period, revolutionary agricultural techniques, improved methods of iron manufacture and coal production, as well as advanced textile machines were introduced. These advances completely changed the human environment because people were not used to such technologies. The second industrial revolution changed the environment further through the introduction of steamship and railroad transportation, chemicals and other agricultural machinery. Man was compelled to use these technologies in farming and transportation thus chnging the environment. Currently, many people do not depend on others to sustain their own existence. By embracing technology, people have been able to specialize in specific kinds of work. Unlike the jack of all trades of the 19th century, technology enables a typical office worker or factory worker to concentrate on a small bit of work that would otherwise be completed by many people. In the past, people had to use a lot of strength while working because one had to work alone or in small groups to accomplish strenuous activities. Industrial technology has altered this trait of work. Because of industrial technology, Work has now become a repetitive phenomenon that rarely requires an individuals full muscular ability. Industrial technology has enabled many people to reap the fruits of their toil. For example, the existence and growth of the automobile industry provided people with a ready market for their raw materials such as leather, rubber, lead, sheet steel and zinc. Moreover, industrial technology provided numerous employment opportunities. For instance, the growth of the auutomobile industry led to the initial employment of 10,000 persons by 1905. The advent of industrial technology also led to urbanization, which allowed more and more people to relocate to major cities because of the gains that come with technology. Industrial technology has also led to the even distribution of the labor force. Rather than hiring many people to complete a certain task, many organizations can now complete more complex production processes with less people together with technology. Additionally, industrial technology has transformed the manner in which goods are being produced. Unlike in previous years, companies can now produce goods en mass. Unfortunately the mass production of goods only benefits the employers and not employees. Automobile and transportation industry has impacted people in a positive way. Rather than using slow means of transport to and from work, many people can now drive for miles to work. Since industrialization and the use of technology led to lying-off of workers, wage cuts and other forms of employee exploitation, unionism was embraced by many employees to counteract and fight this unnecessary exploitation. Buy custom The Impact of Industrial Technology essay

Continuos Professional Development for Nurses Essay

Continuos Professional Development for Nurses - Essay Example Increasing recognition of the need for continuing professional development or CPD for health professionals has created an inevitable expansion in course provision (Hicks & Hennessy, 2001). For a course to be successful, the particular CPD course must be able to meet the local health service needs, as well as the personal and professional development of the participants (Hicks & Hennessy, 2001). CPDs should also design methods and strategies that would encourage participation of professionals especially nurses for it to be successful. In the study conducted by McMullan, Jones and Lea (2011) entitled, â€Å" The effect of an interactive e-drug calculations package on Nursing Students' Drug Calculation ability and self-efficacy†, aimed in comparing an interactive form of CPD and the traditional type of providing hand-outs. Using the PEDro Scale Rating, the said study was good in terms that it was able to determine the significance of CPD in the life of nurses. Nurses need to be c ompetent and confident in performing drug calculations to ensure patient safety (McMullan, Jones & Lea, 2011). The study utilized a cluster randomized controlled trial comparing the e-package with traditional hand-out learning support (McMullan, Jones & Lea, 2011). The author of this paper believes that Randomized Controlled Trials or RCT should be conducted in determining the essence of CPD in the Nursing Profession for the reason that it limits bias and therefore provides reliability and validity of the findings. Moreover, the factors that may alter the validity of results are also given focus so as to promote precision and accuracy of results that will be obtained. Lastly, RCTs typically provide a clear picture of the answers to the inquiries posed by the issue regarding Continuing Professional Development or CPD for nurses. As a nurse, the said study was beneficial for it had proven the importance of undergoing Continuing Professional Development Courses in order to improve the skills and knowledge of nurses which is crucial in fulfilling the endeavor of providing quality care to patients. This study challenged nurses that they must continue to update themselves in order to keep at pace with the different demands or needs of their patients. It can also be concluded that learning does not stop after one has obtained his or her nursing license instead it is a continuous and lifelong process for one cannot learn everything in an instant. Moreover, a variety of updates and new discoveries are being divulged everyday in the field of nursing and for a nurse to competently play his or her role, he or she must continue to grow and mature in the profession by means of learning not only for professional enhancement but also for holistic development as an individual. II. Studying comprises a set of skills that can be learned, practiced and combined together as an overall procedure, and that this method will ensure the success of an individual (Mason-Whitehead & Mason , 2008, p. 1). Subsequently, being a student necessitates a mental attitude and a set of behaviors mandatory for the process of studying to be enjoyable and at the same time successful (Mason-Whitehead