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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:52 |
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Conference: Bucharest University Faculty of Physics 2024 Meeting
Section: Physics Education
Title:
Simple Experiment and Simulation of a Rotating Liquid’s Free Surface
Authors:
Roxana DUMITRU (1), Bogdan CHIRIACESCU (2), Fabiola CHIRIACESCU (3), Cristina MIRON (1), Cătălin BERLIC (1), Valentin BARNA (1)
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Affiliation:
1) University of Bucharest, Faculty of Physics, 405 Atomiștilor Street, 077125, Măgurele, Romania
2) „Nicolae Iorga” High School, Nehoiu, Romania
E-mail
cristina.miron@fizica.unibuc.ro
Keywords:
free surface of a rotating liquid, video analysis, Python script, physics education
Abstract:
This work explains an easy and cost-effective method to investigate the behavior of the free surface of water in a rotating container. Using a standing camera, we recorded the movement of the container and the profile of the surface of the water. In the resulting video, we initially noticed the usual parabolic shape of the free surface, characteristic to rotating liquids. The video was then analyzed by means of Tracker software and we found the rotation period of the container and the displacement of the parabola apex. From the acquired data we were able to calculate the gravitational acceleration with very good precision. In the second part of the work we created a Python script for simulating the same experiment. The user may interactively change the involved main physical parameters, observing the modification of the parabola’s shape. Our work proposes a didactic alternative approach for study and simulation of a rotating liquid free surface, while the attained results can be compared with the ones obtained by traditional methods.
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