Week 4
Hello Everybody! Time Flies~~~and it's now week 4 ! Well , we do have some progress on our project . However , it does not represent that our flow are toward a correct pathway . As a student , when you are carrying out an experiment in a laboratory , you have to always try to explore and thinking outside of a box....
So yeah , we are still on our way to search for and explore the effect of different types of wires gave when it is being coiled into a solenoid .
In order to save cost and go green at the same time , we extract the insulated copper wire from the old and spoiled fan . Besides that , the "orange colour ball " are magnets with plasticine wrapped on it . We wrap the magnet with plasticine into a sphere-shaped as a sphere-shaped object can oscillate in a better manner .
Moreover , we use hair instead of thread to hang the magnet . And this does widens our knowledge ! Our hair seems to be very light and fragile ... however , after we listen to Dr.Woon's advice and try to replace the thread with hair , the results showed that hair is light and strong and this is exactly what we are looking for ! A strong and light material to act as a string for the magnetic pendulum . Thank You Dr. Woon .
During this week , we have tried to carry out our experiment using the insulated copper wire that we mentioned above as solenoid to observe the effect .
On the other hand , we have recorded videos of the oscillation of the magnetic pendulum and plugged into our laptop to be analysed using a software named "auto-tracker" . This software can be downloaded through this link → https://physlets.org/tracker/installers/installer_help.html
Below depicts the video of tracking the motion of the magnetic pendulum and plotting a graph simultaneously by the software :
Batteries do supply a high current to the solenoid BUT it dies off very quick . Thus , on the same time , we are also searching a current source that is suitable to be used in our experiment .
For example , using a power bank . A power bank does supplied a desirable amount of current but it also quite dangerous as it may explode when it's getting too hot . Hence , we decided to use adapter being plugged to a power socket instead of power bank .
VALUES AND LESSONS OF THE WEEK
#1 Always be creative in thinking
Sometimes you may overlook the uses of some objects and experiment time is the best moment for you to find out . For instance , we will never know that hair can be so strong until we found out that it can hold a large mass of magnetic pendulum .
#2 Reuse and Recycle
In order to save cost and support the idea of "GO GREEN" being proposed by government , we choose to use the readily found materials from the old and spoiled household products instead of buying a new one . For example , the insulated copper wires from the fan . Hence , please do not simply throw away those household products but donate it to the respective institutes so that it can be recycled into a newly useful products .
#3 Not only focus on the main but do care for the surroundings
At first , we have recorded a video and plug into laptop to be analysed . However , the software cannot detect the motion at first and need to be manually adjusted . After seeking for advice from Dr.Woon , we get to know that background of the setup that is messy will also affect the function of the software . Thus , we rearrange the setup to a clearer background . The software this time get to detect the motion of the magnetic pendulum automatically and much better . Through this , we get to learn that we should not just focus on the main setup of the apparatus but at the same time we have to take care of the surroundings that would affect our experiment . Once again , thank you Dr.Woon .
Thank you for reading ! Stay Tuned for our upcoming posts ya! See you and Have a nice day :)
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