Newtons Second Law Lab free essay sample

Newton’s 2nd Law Lab Introduction: The purpose of this lab was to prove Newton’s 2nd Law; which states accelerate equals force divided by mass (a=F/m). During this lab we were trying to find out the relationship between acceleration, force, and mass by using a air track, glider with picket fence, and photogates. Before I did the lab, I had already knew that acceleration, force, and mass were related. I just didn’t know how they were related. When recording the results of this lab we had to record the applied force in Newton’s. Newtons’s is a unit of measurement represented in m(meters) divided by s2(seconds squared). I think that F/m=a because in Newton’s second law, he tells us that force is equal to mass times acceleration (f=ma), so if you take the mass and divided by both sides to cancel it out on the right, you would end up with a=f/m. We will write a custom essay sample on Newtons Second Law Lab or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Procedure: First we weighed the glider and fence with the string attached, in kg(kilograms). Then we recorded in the table. Next we weighed the mass of the hanging weight in kg and recorded it in the table. Then we found the total mass being accelerated in kg by adding the mass of the hanging glider to the mass of the hanging weight. Fourth we found the applied force by taking the mass of the hanging weight and multiplying it by 9. 8(gravity). Then we found the theoretical acceleration by using the formula a=F/m and plugged in the total mass for m and the applied force for F. By taking F and dividing it by m we can up with the theoretical acceleration. We then looked on the time graph and found the experimental acceleration by looking at the slope of the velocity time graph and recorded it on the table. Lastly we found the percent difference by taking experimental acceleration, subtracting it from the theoretical acceleration, and then dividing that answer by the theoretical acceleration. We then took that answer and multiplied it by 100 to give us a percent. We then reweighed the glider each time and increased the mass of the hanging weight. Then we repeated steps three through seven, 15 more times so we had enough data. Results/Observations: Result are on the attacked sheet. Durning the lab, I observed that the more mass that was on the hanging weight the less accretion. Also the more mass, the faster the glider went. I also noticed the more weighted you taped onto the glider the faster the glider went. Analysis/Conclusion I think a=f/m because in Newton’s second law, he tells us that force is equal to mass times acceleration (f=ma), so if you take the mass and divided by both sides to cancel it out on the right, you would end up with a=f/m. After this lab, we proved that this theory is right because when you look at the theoretical and experimental acceleration data and you look at the percent difference, they vary from 2. 6% to 18%, which is really good. The numbers are not perfect because of errors in the lab. Some of the possible errors could be from, software calculation and the way we rounded our numbers, the air track had a little bit of friction and the weight of our hanging weight could have hit the ground and fell off before the picket fence went threw the the photogate. In conclusion, our lab proved that acceleration does equal force divided mass because when we took the applied force and divided it by the total mass and come up with the theoretical acceleration, our data result came back with an average percent difference is 5. 04; which is less then 10%!

Dealing with the Hard Days of Work essays

Dealing with the Hard Days of Work essays High school students are active, energetic and full of life that is awaiting to be consumed by any means necessary. But the most active students would be the seniors since they have less school work to deal with and more free time to spend. Even though the majority of seniors have more free time, there are still some non-seniors who also have some time on their hands. Most of the students who have extra time actually find something good to use it for. These students go out into the real world and look for jobs, mainly ones that pay minimum wage since other well paying jobs are not that easy to find. But it varies for each person to either work many hours, or just a few hours. There are benefits and also disadvantages for working many hours. A few benefits might be keeping the kids off the streets and learning job skills. But some disadvantages might be too much stress, no time for a social life, and less time to spend on education. Working a long shift at work is good for the student since this student will learn skills for times that he or she will use them for. The student will learn peoples skills since he or she will have to communicate with the customer to understand their needs. These job skills will keep the student organized in their life so that they will be able to talk to people in an appropriate manner. In McJobs by Ben Wildavsky, the author writes Ninety-four percent of employees said their jobs helped them learn teamwork, 89 percent learned how to deal with customers, and 69 percent developed an awareness of how a business runs, showing us that workers are learning new things by taking care of their customers with help from their fellow employees (264). Teens have a nice crave for smoking, drinking alcohol and taking some drugs. I think that working these long shifts are good for the reason of not letting students distort their bodies fr ...

An Explanation of Wechsler Intelligence Tests

An Explanation of Wechsler Intelligence Tests The Wechsler Intelligence Scale for Children (WISC) is an intelligence test which determines an individual childs  IQ, or intelligence quotient. It was developed by Dr. David Wechsler (1896-1981), who was the chief psychologist of New York Citys Bellevue Psychiatric Hospital. The test that is typically administered today is the 2014 revision of the test that was originally devised in 1949. It is known as WISC-V. Over the years, the WISC test has been updated several times, each time changing the name to represent the proper edition of the test. At times, some institutions will still utilize older versions of the test. In the latest WISC-V, there are new and separate Visual Spatial and Fluid Reasoning index scores, as well as  new measures of the following skills: Visual spatial abilityQuantitative fluid reasoningVisual working memoryRapid automatized naming/naming facilityVisual-verbal associative memory Dr. Wechsler developed two other commonly used intelligence tests: the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). WPPSI is designed to assess children aged 3 to 7 years and 3 months. The WISC essentially outlines  students intellectual strengths and weaknesses and provides insight into their overall cognitive abilities and potential. The test also compares children to peers of a similar age. In the most general terms, the goal is to determine the potential for a child to grasp new information. While this assessment can be a great predictor of potential, the IQ level is, by no means, a guarantee of success or failure.   Where the Wechsler Test Is Used Private schools serving children in 4th through 9th grades often use WISC-V as part of their admissions testing procedures, which may be in place of, or in addition to, other admission testing like the SSAT. Those private schools that use it do so to determine both a childs intelligence and his or her performance in school relative to that intelligence level. What the Test Determines WISC determines a childs intellectual capabilities. It is frequently used to diagnose learning difference, such as  ADD or ADHD. The test also helps to assess strengths in order to determine  gifted children. The WISC test indices are verbal comprehension, perceptual reasoning, working memory and processing speed. The subtests allow precise modeling of a childs intellectual abilities and readiness for learning. Interpreting the Test Data Pearson Education, a company that sells the Wechsler testing products, also scores the tests. The clinical data that the tests provide helps the admissions staff develop a complete understanding of your childs intellectual strengths and weaknesses. However, the wide range of assessment scores can be daunting for many and difficult to understand. Not only do school officials, like teachers and admission representatives, need to understand these reports and what the scores mean, but also the parents.   According to the Pearson Education Website, there are options for the type of score reporting available for the WISC-V, which will provide a narrative explanation of the scores including (the following bullet points are quoted from the website): Narrative summary of the child’s background, history, and test behaviorsInterpretation of the Full Scale IQ and all primary, ancillary, and complementary index scoresIntegration of the reason for referral in test score interpretationRecommendations based on WISC–V performanceOptional Parent Summary Report Preparing for the Test Your child cannot prepare for WISC-V or other IQ tests by studying or reading. These tests are not designed to test what you know or how much you know, but rather, they are designed to determine the test-takers capacity to learn. Typically tests like the WISC consist of tasks that assess various measures of intelligence, including spatial recognition, analytical thinking, mathematical ability, and even short-term memory. As such, just make sure that your child gets plenty of rest and relaxation before the test. The school is accustomed to administering these tests and will instruct your child what to do at the appropriate time.

Project Reviews Research Paper Example | Topics and Well Written Essays - 250 words

Project Reviews - Research Paper Example cope of the project, how many people works in that particular project, level of skills of the personnel, the time required for the project completion, project familiarity, resources available, the risk associated with the project, the project complexity and how often the communication is carried out within the project management systems (Barkley, 2006). While carrying out the project reviews it is fundamentally right to factor in the actionable information that gauges the extent of success of these projects. It should be able to scrutinize the project and determine the things that went well as well as those that met with failure in the process of project implementation. Besides, it should be able to capture things that struggled and created bottlenecks in different phases of the project implementation and take into account the preparation of the feedback mechanisms. The project review should take comparisons of the required specifications in consideration of the end results and whether the project is on track or in deviations. The actionable information helps in putting the lessons learnt in taking care of the project quality, budget, overall impacts, time delivery schedule and the project deviations from the requirements. The review should not be biased in any way and it should be able to identify risks that have occurred or yet t o occur in the process of project implementation. Honest project reviews is helpful since it puts projects on the right tracks by identifying the shortfalls and successes (Barkley,

Literacy Essay Example | Topics and Well Written Essays - 500 words - 2

Literacy - Essay Example Lake uses his son’s cultural literacy and the Indian traditional literacy standards to describe Wind’s state of grace, his power, and functionality within the Indian culture. He describes Wind’s literacy as a state-of-grace by identifying his excellence in learning what has culturally been expected of him. Lake applies traditional standards and succeeds in illustrating how the child’s literacy meets honorable standards by demonstrating his diversified knowledge. The description of the child’s scope of education that has been â€Å"colorful, complicated, sensitive, and diverse† identifies this state-of-grace because of the child’s tender age. The child has also learnt many things that different members of the society engage in. He has learnt from all social groups and this includes his father, mother, and people from both his generation and his parents’ generation. Wind’s literacy also identifies a state of grace because h e is able to apply the learnt concepts such as understanding indicators to natural phenomena (Lake n.p.). The writer also describes power in the child’s literacy by illustrating how the literacy captures the child’s attention to an extent that he can only focus on the knowledge when he identifies an associated phenomenon. When he identifies change in the atmosphere, Wind is carried away, and is captured by what he has learnt and his mind dreams of the things that his traditional literacy taught him that should be done at such times. This means that Wind’s literacy is not only powerful in its self, but is more powerful than the western literacy that has failed to capture Wind’s attention into focusing in class. Lake also uses developed conflict in the child to demonstrate the power in his literacy. When Wind learns that his literacy conflicts with the new form of education in school, the cultural conflict

Transforming organization, transforming countries Essay Example for Free

Transforming organization, transforming countries Essay The beauty of organizational transformation reflecting in the belonging countries is embedded in the leadership perspective to the emerging challenge at hand. This has to do with meeting the set-out goals of the company. The goals are clearly mapped out in the mission statement. The mission statement of an organization is a step –in and step-out tones on how to carry out an unequivocal vision of such an industry. In a changing world of ours with constant development of information technology and communication at the twinkle of an eye, it is paramount to establish here that constant ‘change’ is ‘part and par sue’ and a continuous process employed by the administration of the executive officers in charge. An organization needs a research section to constantly discover in due time, evaluate the seemingly problem at hand and the problem prospect towards evolving a systematic approach to effectively combat the problem with competitive solutions. The absence of such section presents the system to premature failure, strangulation and sudden collapse amidst overwhelming competitive market layout. But why do people resist this change? Firstly, of important is the leadership ability of the chief executive officer in charge of an organization to communicate in clear tone of the imperative need(s) for a proposed change.   An important change is not usually a sudden one. Therefore the process of change towards productive results is in all, the concern of the entire goal driven employees. Employees are left in suspicion of pending job insecurity when sidelined from the activities resulting in the change. A sector of industries who fails to achieve its sole aim of establishment within a stipulated time is a laboratory earmarked to experiment new method for possible productive running (the change). An employee in such stratum who perhaps, would perform better in newly evolving shape of the future of that sector or possibly in another sector within the same organization will do everything possible to resist a planned change with uncertainty of his/her fate afterward. Thirdly, for an employee whose employment in the organization is not grounded on merit, his spirit-willingness conformity to the written words of vision and mission statement of the industries is slack. Nevertheless, meeting the time-limit for each goal and agenda of the organization per time become a big task. On perceiving a proposed change in view, such an employee become convicted by conscience and consider himself a target for elimination while the leadership sees the need for such change in another perspective. In the absence of other alternative, he will try to oppose such change by all means. To relief employee’s anxiety over intending change Employee anxiety towards change is an obstacle to the success of the plan for the evolving new industry. To work out a yielding change, dealing with the anxiety of the employees should be part of the change process. Adequate information on why the change is necessary at such time relieves anxiety, some of such reasons could be proffering the way forward to perhaps, the gross net loss in company’s quarterly report, significant reduction in shareholders’ earnings per share, the urgent need to meet government new policy (and stipulated deadline) with the industry still having a sharp edge among competitive industries, the change in the political landscape indigenous to the company, the company’s readiness to compete on global horizon, seasonal shifts in market forces of demand and supply, among others. In engineering the change, the visionary leadership need not fidget on the outcome of employee’s retrenchment if need be. Such job relief must be done in under standing or/and the protection of such an individual’s right. Towards A learning organization Peter Senges (The Fifth Discipline, n.d) concisely defines learning organization to be corporate activities in an organization that maintain a continuous habit of development per time. A dynamic organization needs to meet the innumerable challenges of thriving in a tasking world of new discoveries. Besides the employees experience as a product from adaptation to the required skills and the economy surroundings in the industry, it is instinctive for man to naturally challenge history, instructions, precepts and possibly look for an easy way to getting still the same result or a better one of compliance in a dynamical economic demand. As part of the learning process, an organization needs to constantly meet the expectation of each individual component of a working team. Incorporation of ‘a learning organization’ scheme is necessary for an organization to evolve its own identity. Such will make it stands irrespective of employees’ inflow and outflow. Towards A successful team In the present century, ranking highest among necessities for a successful organization is a vibrant and cordial working team (American National Representative Survey, 2003). The term teamwork is a cross-breeding of productive efforts towards synergized results. Each member of a team is a living component of such system that produces the common goal. The evolution of a team is oriented in the required result. This informs the creation and kind of such team. In the turmoil of rapid generation of new customers’ demands, individualistic method is insufficient to quench the hunger for urgency and accuracy. A team needs evolve to do the job (Jackson Ruderman, 1996). Types of Team The categories of team instituted is based on three headings; the working area, the task mission, and the time requirement, and leadership structure. Functional Team: here, each integral member is from the same unit Cross-functional Team Team members assemble from various work units to evaluate and resolve common challenges. Mission Team Mission-accomplished Team – The members here prefer and implement solution to developing issues. Developmental Team This team develops new systems and products Duration Team Ad hoc The team is established for pending issues and stand dissolve thereafter the issues are resolved. Permanent Standing team is a permanent part of the work unit or the organization. Decision making of a chief executive amidst competing values Teams are meant to execute clearly mapped out tasks. The chief executive decides the pending task to be performed, assigns the type of team needed and provides the task in the organizational perspective in terms of goal and objectives. The chief executive officer collates various decision resolved by the team and make ultimate decision. It is important that the decisions are first suggested to another round of objective deliberations, the subjective points are discarded for the objective ones. True test of objectivity is measured by the relative strength of a decision over a reasonable long duration after suggestion. How CEO`s behavior is related to his tenure in office Cumulative success and failure of a CEO is a determinant to the length of his tenure duration. More importantly is his reaction to moment of failure. On the other hand, total shareholders returns over given period of years is tested for different CEOs. The CEO behavior to meeting the target of an organization is evident in the profit and consumer satisfaction yields. For different CEOs, their   behaviors is am reflection of industries differences, company’s oriented grooming before appointment or outside orientation in a similar discipline. References Carly Fiorina, Japanese chamber of commerce and industry New York, New York, November 28, 2000 Transforming Companies, Transforming Countries â€Å"Leadership in Organizations† by G. Yukl Chapters 10-13, The annual Booz Allen Hamilton study, Booz Allen Hamilton Inc, 2003. Web site- http://business2-cnet.com.com/CEOs-on-the-firing-line/2030-1069_3-1021971.html OPM, Workforce Performance Newsletter, April 1998 Phil Garrahan and Paul Stewart â€Å"The Nissan Enigma† Chapter 4 published by Mansell in London 1992).

Todays Family :: essays research papers

Surviving in the Ross Sea   Ã‚  Ã‚  Ã‚  Ã‚  Emperor penguins and Weddell seals are the only marine predators that breath air and live year round in Antarctica Ross Sea. How these two animals are able to live among each other when there diets, hunting depths and area distribution are shared is the question. Ross Sea is called home by six emperor penguin colonies, approximately 180,000 birds, and about 50,000 Weddell seals. It is important, when considering competition between these two species to know that each share above and below water resources however it is below water prey where problems may occur. Several items can be considered to determine true competition overlap. These items include prey selection, using different hunting depths and habitat separation.   Ã‚  Ã‚  Ã‚  Ã‚  Fish account for most of the diet of both predators (99.3 % for seals and 89-95% for penguins). To take it one step further, Pleuragramma antarcticum, or Antarctica silverfish is the primary prey for each. Of the fish consumed, 88.6% of penguin’s fish diet and 99.3% of the seals diet consist of the Antarctic silverfish. This species of penguins and seals do not select fish of different classes despite body and mouth size difference. Seal prey is slightly larger, yet still considered juvenile as are penguin prey. Absence of larger prey in the penguin diet may be due to the fact that all samples were collected during chick rearing periods. It is possible that adult birds would capture larger fish for themselves and return with slightly smaller sizes for their young. Although seals and penguins hunt for the same size and species of fish, this does not restrict them from cohabitation.   Ã‚  Ã‚  Ã‚  Ã‚  Next we will consider the depth at which they hunt. Both, seal and penguins are excellent divers. In order to dive at great depths, these species move oxygen away from the lungs and into the muscles and blood. This allows them to store 3-4 times more oxygen than the average land mammal. In addition, seals and penguins use other techniques to reduce oxygen intake. Examples of this include the reduction of heart rates during long dives and an energy conserving swim pattern called burst and glide. It is known that penguins and seals have the ability to reach similar depths, however, the time below surface varies between the two animals.