Introduction: A pendulum uses the force of gravity to consistently move back and forth. A pendulum is most recognized as a mass hanging from a string that is then attached to something as a fixed support. An example of a pendulum motion is Newton's Cradle. Five balls are hanged next to each other and if one is lifted up and then released, it hits the first ball which sends a train-reaction all the way to the last ball. This continues until it is stopped by another body. A simpler example would be a swing; it uses the same type of motion. In physics, using a specific equation, it is possible to solve the gravitational acceleration. In this experiment we will be testing that; the equation was modified into a simpler form so it will be easier …show more content…
One of us was built up the station and was the timekeeper and the other measured the string each time and swung the pendulum. This made our data consistent because there were no changes in action from each person. Our results were reliable because we did it multiple times; each length swung ten times, so the time would be more precise. All the equipments were used and they were very useful for the experiment. I believe that there weren't anything wrong that occurred during the experiment, we followed the instructions and we were able to get proper results. none of the instruments were damaged so they were all properly in use. The method was very straightforward, it made it easy to understand and to perform the experiment. In this degree, we were able to create our raw data that was used to find the gravitational acceleration. As a result of having 7 various lengths and also swinging it 10 times, i would say the data collected was sufficient and it helped in the experiment. Even though, the ‘g’ we found wasn't the same. The gravitational acceleration we found was really close to the one on Earth, which is 9.8. However if we possibly had observe the uncertainties a bit more closely we could have gotten a closer number or maybe the exact one. Overall I think next time we should think of different lengths that could possibly bring us closer to the number wanted. Perhaps if a pattern is used then once processed we can see the difference from what we got this
There were no significant error factors that may have affected the arrangement of the lab experiment. Everything went smoothly with relative ease.
Experimental: The experimental procedure outlined in the OU Physical Chemistry Laboratory Manual was followed without any deviations.
...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.
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”
The objective of my experiment was to observe how people reacted to a violation in the social norms of elevator etiquette. Generally in elevators, people fill in starting from the back, face the elevator doors, and rarely make verbal contact with others. Unless the passengers of the elevator know each other, conversation is sparse and often limited to small-talk. As a result of this, my goal in the experiment was to introduce a foreign behavior to the elevator, something that nobody would expect while going about their day. Thus, I entered a situation where a certain set of expectations was in place, such as the informal rule that individuals should stand (rather than sit) in an elevator, and violated those unspoken rules without acting in
...ore reliable if it were possible to do more trials to make sure that the data that was found was correct. This experiment could’ve been more reliable if some mistakes weren’t made like, the inaccuracy of weighing and measuring the potatoes. This could have affected the results by throwing off all the data and giving numbers that were nowhere near accurate. Another mistake that could’ve been made was the amount of solution put into each test tube. Some of the test tubes may have had to little or not enough of its solution. Some ways to fix both of these problems would be to weigh and measure each potato core more than once which is not what was done. A way to fix the inaccuracy of the amount of salt water put into each test tube would be to measure the solutions into a different container to make sure it’s an accurate measurement, then pouring it into the test tube.
...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.
Sit in a quiet place and center yourself in your name. “I am _________” (State; first, middle and last names) Repeate this 4 or 5 times.
Historically, Gallileo Galilei had a multitude of identites. To the Catholic Church he was a heretic. To religious reformers, Galileo was bastion of truth and chapion of the the individual. But who was galileo, in his own mind? It may be impossible to determine what the historical Galieo thought of himself; however making inferences and even creating and entire identity from what is known about the man can be a fruitful journey into the human soul. The is exactly what German Dramatist Bertolt Brecht has done in his laudable play "Life of Galileo." This recreation of Galileo depicts his struggle to find his place within the tumultuous atmpsphere of the fledgling Italian Renaissance. As the play progresses, the audience witnesses Galileo being pulled between established authourity of the church and rising influence of free thought. However even he cannot eslcape the influence of the church, the most powerful and pervasive gonverning body of the era.
In Edgar Allan Poe’s story, “The Pit and the Pendulum,” Poe, uses the horror elements of isolation, explores violent sides of humanity, and plot twist to add suspense to the story. In the beginning of the story, Poe was standing before the judges waiting to see what sentence they were going to give him. He ended up being sentenced to death and then he fainted. When he woke up all he saw was blackness. “The blackness of eternal night encompassed me. I struggled for breath. The intensity of the darkness seemed to oppress and stifle me.” pg 3 They had different clothes on him. He was now dressed for a wrapper of coarse serge. Poe was standing up and he fell and went to sleep when he woke up. He found next to him a pitcher of water and a loaf
Overall I think I carried out the experiment in a precise way and I took my time trying to make all my measurements as accurate as possible so that my data is reliable. Next time I will do more tests instead of just 3 so I have more results and so I could get a more accurate average. I will also do the experiment with more fruit juices to see if there are other fruits with a higher content of vitamin C. I will do an experiment to see if there is a difference in Vitamin C levels between fresh juice and store bought juice. I can also test different brands of juice to see if they have different levels of vitamin C.
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
The momentum of all three trials was not conserved. The lack of an isolated system is the most probable cause for the failure of this experiment.
Are any scientific theories true? If so why? If not why do we rely on them?
Standing 56.67 meters on its higher side and 55.86 meters on its lower side. Weighting 14,500 tonnes the Leaning Tower of Pisa is an amazing artifact in the city of Pisa, Italy.