A pendulum, is what is used in many rides, generally in, Disney, Knott's Berry, and 6 Flags. A pendulum makes the ride move back and forth in a swaying motion like a swing. It is fixed at a point so gravity propels the object swing back and forth. There is a concept of an ideal period in a pendulum. The time it takes for a pendulum to swing back to its original position where it started is what you would call, an “ideal period”. The group will be determining whether or not it is possible for a pendulum of 45 degrees or less to have an constant/ideal period of 1.5 seconds.
Data
In the end, we had a lot of data. The group differentiated all the data from what the group did. On some of them the group had to change the length of the yarn and in
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some cases changed the angle or even the ball itself. The group found out that the greater the angle was the more of the time it took for its period. The “figures” will be on the back of this paper. Conclusion As much as the group had its doubts about it being possible for a pendulum to have an angle of 45 degree while also having a constant period of 1.5 seconds, we thought it could definitely be done.
Although the group tried its best to get accurate data some problems that could have affected the data would have been that we used 2 timers, and we would pick the better time out of the 2. So that could have affected the reliability/accuracy of the groups data. On one of our samples(of data) was at angle of 45 degrees and the group tested it out 3 times at that angle giving us, 1.45sec, 1.56sec, and 1.35sec. Now you as the reader can see that in general this is relatively very close to a 1.5 period. So in the group's general consensus we had completed our mission of getting a 1.5 period. Little did the group know but along the way of graphing the average of all times for all the different ball elements (cork&steel) it was discovered that at no matter what angle less than 45 degrees the pendulum would always be at a 1.5 second period. The graph proved this because when all points where connected it was a straight line which means it was constant. Therefore the group came to the conclusion that no matter what variable you change, whether it be the measure of the angle, the string length(holding the ball), or even the element/mass of the ball, it did not matter because you would always get a 1.5 second
period.
Results: The experiments required the starting, ending, and total times of each run number. To keep the units for time similar, seconds were used. An example of how to convert minutes to seconds is: 2 "minutes" x "60 seconds" /"1 minute" ="120" "seconds" (+ number of seconds past the minute mark)
•Controlled variable- amount of time exercising and resting, number of trials, type of exercise, same type of clothespin , intensity of the exercise, and the age of test subjects
Have you ever watched a movie and been dissatisfied, because it was not similar to its book? There are multiple movies that seem as if they are their own story, for they don't resemble their book at all. For example, “The Pit and the Pendulum.” by Edgar Allen Poe. He, himself would not approve of the film that follows his story. For one thing, the storyline was no where near to being like his book. Another reasoning is that he wrote based of one man not multiple people. And finally, he wouldn’t of approved of the art on the walls in the room with the pit and pendulum. These are the reasonings of why Poe would not appreciate the film.
...e been beneficial to the experiment. An error may have occurred due to the fact that measurements were taken by different individuals, so the calculations could have been inconsistent.
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
Everyone is scared of something, whether it be heights, clowns, or fear itself. Some people loathe being scared, while others relish the experience. Those who enjoy horror tend to seek it out through many sources, including movies and books. There exists a certain kind of book that is designed to strike fear into its readers, to keep them up at night. These books are known as horror stories. Many great writers in history have found their muse in the horror genre, one of them being Edgar Allan Poe. In his short life, Poe wrote many poems and short stories which are recognized as being some of the greatest horror stories of all time. For example, “The Raven,” “The Tell-Tale Heart,” and “The Pit and the Pendulum”
Violence against women is a gender based violence because it is targeted specifically to women just for the fact that they are a woman, this can be due to many reasons like the attacker feeling empowered because they think of women as being the weak gender. The United Nations advocates against violence towards women in their Declaration on the Elimination of Violence against Women. They annotate that violence against women is a “manifestation of historically unequal power relations between men and women” It is something that happens more often that many people realize. Many times this type of violence happens behind close doors and goes to the extremes that many of the victims would not speak
The Pit and the Pendulum is a story about a man confined to a prison cell and tortured mercilessly in Toledo Spain during the Spanish Inquisition. Edgar Allen Poe's story is powerful because the prisoner tells the story of his torture. Given this you know he is going to survive which helps make the mystery so much more complex.
In Poe’s short story, The Pit and The Pendulum, the main character, our narrator, has been captured and is certain that he will die. The story unfolds as he awakens after having lost consciousness. In order to understand him and comprehend the type of man he is, we must make inferences from his thoughts and actions.
...executed was on the AstroTurf outside the school. This could have affected the subject’s performance and how the results were measured. To improve this, the experiment should have been carried out in a science lab on a treadmill so that the environment is constant and so that the heart rates are easier to measure. Thirdly, the temperature of when the experiment took place was about 10°C which may have affected the subject’s performance. If this experiment were recurrent then 5 subjects would do it inside (room temp. 21°C) using the treadmills and wearing the right clothing, and another 5 would do it outside to see if this factor did in fact affect the results and cause them not to be as accurate as it could be. Then we would be able to compare the two temperatures. Overall this experiment ran smoothly with some problems, which can be improved as I explained above.
Electronic balance, weights and weight hanger, paper clip, meter ruler, plastic handle, string, stopwatch and rubber stopper
A weakness or limitation in the process of the experiment could be that the metal mall probably did not start initially at 0 ms-, because the rim of the graduated cylinder reached a height of .011 m above the surface of the liquid. Therefore, the ball did not start falling in the liquids with an initial velocity of 0 ms-, which could have affected the results. Ways that this issue could be fixed is by filling the cylinder to the rim and re-measuring that distance to 0 mL. In addition, there could have been a few human errors in measuring. Since data recording relied on the physics app, there could also have been some inaccuracy while using it.
Fredrick W. Taylor’s body of work on time studies to improve manufacturing efficiency was so advanced, he is considered to be the father of time studies. Although he did not invent time studies, he promoted the idea of scientific management for the manufacturing industry in the early 1900s. The use of time studies can be traced back to 1760 when Jean Rodolphe Perronet, a French engineer, conducted an extensive time study on the manufacturing of No. 6 common pins. Perronet establish the standard of making 494 pins per hour (2.0243 hours/ 1000 pins). Later in 1820, Charles W. Babbage, an English economist, performed a time study on the manufacturing of No. 11 common pins. Babbage concluded that 5,546 pins should be made in 7.6892 hours (1.386 hours/ 1000 pins). Babbage published his book “On the Economy of Machinery and Manufactures” in 1832 (Niebel, Freivalds 2014).
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.