SYNDICATE
Observations:
After conducting the experiment, the following observations were mad.
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The frequency was calculated with a force of tension/centripetal force of 0.98N. The radius and mass of object kept constant.
The frequency was calculated with a force of tension/centripetal force of 1.96N. The radius and mass of object kept constant.
The frequency was calculated with a force of tension/centripetal force of 2.94N. The radius and mass of object kept constant.
The frequency was calculated with a force of tension/centripetal force of 0.98N. The radius and mass of object kept constant.
Graph 1
As the force of tension/centripetal force increased, the frequency also increased; thus showing that the relationship between the force causing the acceleration and frequency of revolution is directly proportional.
In this part of the lab, the force of tension/centripetal force and radius were kept constant. In this part, one stopper was used; which has the total mass of 14.90 grams.
In this part of the lab, the force of tension/centripetal force and radius were kept constant. In this part, one stopper and two washers were used; for a combined mass of 25.70 grams.
In this part of the lab, the force of tension/centripetal force and radius were kept constant. In this part, one stopper and four washers were used; for a combined mass of 36.40 grams.
In this part of the lab, the force of tension/centripetal force and radius were kept constant. In this part, one stopper was used; which has the total mass of 14.90 grams.
Graph 2
As the mass of the object increased, the frequency decreased; thus showing that the relationship between the mass of the object and frequency of revolution is inversley proportional.
In this section of the lab, the radius was kept at 0.50 m and the centripetal force/force of tension and mass of object were kept constant.
The radius was increased to 0.60 m.
The radius was increased to 0.75 m.
In this section of the lab, the radius was kept at 0.50 m and the centripetal force/force of tension and mass of object were kept constant.
Graph 3
As the radius increased, the frequency decreased; thus showing that the relationship between the radius frequency of revolution is inversley proportional.
Analysis and Discussion:
Graph 1 shows the relationship between the force causing the acceleration and frequency. The graph is increasing at a constant rate; therefore, the relationship between the force causing the acceleration and frequency is directly proportional. This makes sense because if there is an increase in the net force and all the other variables are kept constant, the object will move faster because there is more force acting on it which is in turn, causing it to move faster.
Graph 2 shows the relationship between the mass of an object and frequency. The graph is constantly decreasing and has a negative correlation; therefore, the relationship between the mass of an object is inversely proportional. This makes sense because if the other variables are kept constant, and the mass is increased, the string will move around in a circle a lot slower. Therefore, it will have less frequency.
Graph 3 shows the relationship between the radius and the frequency. It is apparent that as the radius increased, the frequency decreased; therefore, it is evident that the relationship between radius and frequency is inversely proportional. This makes sense because if the other variables are kept constant and the radius increases, the object will have to cover more distance in order to complete one cycle. Therefore, as the radius increases, frequency will decrease; thus, highlighting the inversely proportional relationship between radius and frequency.
This equation explains the relationship quite well: Fc = 4Ï€2mrf2
Conclusion:
The Syndicate hypothesized the frequency is directly proportional to the force causing the acceleration and inversely proportional to the mass of the object and the string. According to our observations, our hypothesis was correct. We have sent this information to Woodz Co. and look forward to the changes on the streets of Bucktown. During the experiment; however, it was possible to encounter sources of error. First, it was difficult trying to keep the string in somewhat of a horizontal circular motion. We were made aware that in our low-budget conditions, it was impossible trying to keep the string moving in a perfectly horizontal circular motion; it was not a spherical chicken in a vacuum case; we’re low budget like that. Furthermore, the string kept moving, it did not stay in the position we desired throughout the entire trial time; as a result, we had to re-do the trial several times. This was an instrumental error. However, this could have been improved upon by using a thicker string or even wool and a larger tube. It would be easier to move the object around and the string would not constantly travel away from its desired location. Although we are low-budget, we are smart enough to be able to negotiate for wool instead of string. Finally, a study in which this concept can be further applied can be finding the relationship between the force causing the acceleration and velocity of the object; this experiment can explain the following equation: Fc = mv2/r.
Group Reflection:
This task was rather easy for the Syndicate to handle. Most likely because the concept was of it was also straight forward. Even before conducting the experiment, the results were in our heads. Doing the experiment made the concept more clear to us. We worked cohesively together, each member knew their role well and did it well, it was a success. We did forget to take pictures of performing the trials; however, that was a minor problem that we quickly solved by taking setting up the experiment and peerforming only one run on one trial. We just needed that image to document ourselves performing the task. This is going to helped a lot in our future development as a cohesive unit and we will need it because SRK's Catapult is not going to be a walk in the park. That task will require dedication, determination, and a romantic mind. Although we helped Woodz Co. get rid of the outlaws who drive like illiterate teenagers from the streets of Bucktown, we will now need to heart of a lover and a champion to complete SRK's Catapult.
Roles:
Documenter: Jasmit
Facillitator: Parth
Timekeeper: Parth
Webmaster: Parmveer
Manager: Gurjot
Jasmit's Reflection:
On the first day of the task, I was absent because I had to go method and learn how to romance for the SRK's Catapult task. However, after that day, I investigated further into the lab and realized that this lab was fairly straight-forward. As a result, the choices for this task were very flexible. I chose to be the webmaster because I had a passion for this lab. I personally had experienced the bad drivers of Bucktown and wanted to let the world know about them with emotion. One problem I faced initially was being unable to understand the procedure; however, that was because I missed the pre-lab meeting. In order to make-up for my liability, I researched this lab, read a descriptive procedure and realized what I had to do, after that, the lab was like taking a walk in the bad driver-free streets of Bucktown.
Gurjot's Reflection:
There was a lot of work to be done in this lab, but we managed to finish it. In this project, I was the documenter and the time keeper. As the documenter, I collected the data when Jasmit was conducting the experiment of the uniform circular motion of the rubber stopper, at times, I also tried to help conducting the experiment too. Overall, collecting the data and making it took a very long time since we had to do it right, the rubber stopper need to be exactly horizontal and the mass attacked to the rope needs to be correct. I also helped gather and setup the materials in order to execute the experiment, the string needs to be tied up to the rubber stopper, and washers were added when needed. Finally, I also was the timekeeper, I made sure that we were finishing the lab in time. Overall, I tried my best to do a lot of work, I definitely improved on this lab when compared to the previous one. There was a lot to do in this experiment and a lot to learn, but our group manage to get the job done.
Parmveer's Reflection:
Day 1- We got the mission and approached it with a intent to kill. We started hard but finished too quick, we couldn't finish the job on day one.
day 2- We all got together and hit this assignment hard. We assembled all our equipment and head towards the task quickly. With wasting very little amount of time we accomplished most of the task, but still we couldn't finish the job of day 2.
day 3- We had no time to work on the mission during work. So we worked on the task after job. Me and another member got together and finished the job quickly. The hand work is finished but the paper work remains.
Day 4- We split up the work finished the job in short matter of time.
This was a easy but long mission. I was the leader of this mission and I believe i did a good job. I managed to get the team stay on task and made them give their fullest for this mission. it was a hard time for all, with the super serious mission approaching. We successfully finished this job with our sheer will of enjoyment and teamwork.