This would occur because as the radius decreases, the rubber stopper takes a fraction of the time to group around using the constant centripetal force into it. In some other words as the radius decreases, the size of the circle decreases, hence it takes less moment to cover a smaller circle, with the same push acting on the rubber stopper. In other phrases, the radius of typically the string is inversely proportional to the velocity from the stopper. Overall, the experiment was carried out together with minimum errors and implemented since the procedure. There have been eight data points with three trials each.
The experiment has been related to one factor that affected the action of the rubber stopper in circular motion. With this experiment, that factor was your length of the string (radius). As stated in typically the hypothesis, the radius had been decreased which would increase the velocity of the arrêter. But as it can become seen from the data table and graph that as the radius lowered the velocity also decreased. Therefore, the radius of typically the string is directly proportional to the velocity associated with the stopper. This proves my hypothesis wrong which often stated that as typically the radius decreases, the speed increases.
Within my experiment, the radius was decreased which reduced the time elapsed yet decreased the velocity as well. This could have happened because because the radius reduced, the stopper actually provides to move faster in order to cover typically the larger circle in the particular same amount of time. The stopper actually addresses much more area of the particular circle when the radius is larger without using more time. This theory is exactly opposite as mentioned in my hypothesis. Because it can be seen from my graph and the data table that there were some problems in my experiment.
The percent error that has been calculated to end up being 13. 5 % assures the fact that there was flaws in my test. One big error has been that when the stopper had been revolving, the hand usually touched the string regarding the stopper. This usually altered the centripetal force acting on the thread, hence changing the beliefs of my data. One more error was that not necessarily all the time the radius mark (the mark upon the string using the marker) used to be specifically under the plastic pipe. Since of this, the values of the radius have been altered hence changing the velocity factor in my research.
The errors/flaws stated above can be prevented by way of a number regarding steps. Always during the particular experiment, the only component the hand should touch is the plastic tube only. Even if typically the hand touches any other part of the apparatus, the experiment should become stopped carefully and typically the trial ought to be re-done. Also, instead of utilizing a marker on the string, this individual string should be tapped or tagged at the point needed. The tag should be more than the particular radius of the hole of the plastic pipe so that the tag does not pass through the hole, consequently it will not alter the value of the desired radius.