Effective Spring Constant Lab Report Example | Topics and Well Written Essays - 750 words

Effective Spring Constant - Lab Report Example We calculate the percentage error to find out how similar our predictions were to our experimental results. It can be assumed that the percentage errors are very less and thus, it proves that the experiment was conducted with lot of precision and care. These errors are less if you consider the fact that an error of 5 cm in measuring the displacement would have changed the error percentage drastically i.e. 35.71% from 10.00% The relatively less percentage error can be accounted to systematic error or aberration in springs. Also, we must not forget that the experimental value of k’ and k† is obtained from the values of k1 and k2 from the previous lab experiment’s results so if there was an error in the results of the experiement it would have carried over into this lab. Our predicted results would have changed slightly due to the error and our experimental data would be off by even more. Another source of error could have been in measuring the relative displacement of the spring after the masses have been hung. A change in the angle or the stick not being held vertical could have resulted in a large deviation from predicted values. Taking into account all of these possible sources of error, we can safely assume that our percentage errors were sufficiently small. Conclusion The objective of this lab experiment was to calculate the effective spring constants of two different configurations. We obtained the effective spring constants using the equations from the predictions section.... (N) Initial h (m) Final h (m) Displacement (x) 0.05 0.49 0 10 10 0.07 0.686 0 10 10 0.09 0.882 0 12 12 0.11 1.078 0 15 15 0.13 1.274 0 20 20 The slope of the graph obtained is . Table-4 k† (End-To-End) Mass (kg) Weight (N) Initial h (m) Final h (m) Displacement (x) 0.05 0.49 0 29 29 0.07 0.686 0 42 42 0.09 0.882 0 54 54 0.11 1.078 0 67 67 0.13 1.274 0 80 80 The slope of the graph obtained is . We calculate the percentage error to find out how similar our predictions were to our experimental results. It can be assumed that the percentage errors are very less and thus, it proves that the experiment was conducted with lot of precision and care. These errors are less if you consider the fact that an error of 5 cm in measuring the displacement would have changed the error percentage drastically i.e. 35.71% from 10.00% The relatively less percentage error can be accounted to systematic error or aberration in springs. Also, we must not forget that the experimental value of kâ€⠄¢ and k† is obtained from the values of k1 and k2 from the previous lab experiment’s results so if there was an error in the results of the experiement it would have carried over into this lab. Our predicted results would have changed slightly due to the error and our experimental data would be off by even more. Another source of error could have been in measuring the relative displacement of the spring after the masses have been hung. A change in the angle or the stick not being held vertical could have resulted in a large deviation from predicted values. Taking into account all of these possible sources of error, we can safely assume that our percentage errors were sufficiently small. Conclusion The objective of this lab experiment was to calculate the effective spring constants of two

LP7- Leading & Motivating people Assignment Example | Topics and Well Written Essays - 250 words

LP7- Leading & Motivating people - Assignment Example She is mostly concerned about the needs and feelings of members of her team i.e. Country club management style. She wants all her team members to be happy and secure, which she assumes will translate to them working harder. This kind of leadership styles leads to a relaxed work environment but which comes at a cost to the level of production. She has strengths that can be credited to her like having good interpersonal relationships with her subordinates due to the fact that she cares about their needs, interests and personal development. On the other hand, her flexibility and employee focus leads to 70 % of the budget going to their training and salaries hindering cost cutting measures. Evelyn had a core source of her influence; she used the reward system to bestow her influence upon her employees. She awarded higher salaries to her employees and had them engage in training often to improve their skills and marketability. She also treated people fairly and showed consideration and respect. These kinds of interaction with her workers make them want to help the manager even more and go the extra mile to help her achieve her set goals. Erik has authoritarian or compliance leadership style. His main concern is the end goals achieved, in this case improved efficiency and increased production .He has strict procedures and policies in the work place. This has its advantages as it focuses on organizational efficiency and increased production in the work place. The down side of this approach is that it lacks the internal analysis of the work culture of the employees, their needs and personal development when deciding how best to accomplish tasks. Erik uses the influence and powers that come with his senior office to push through his agenda in the office. He tries to get things done his way by using the higher authority given and uses people at higher levels to back him up. This management tactic improves