USE OF GRAVITY CURRENT VIDEOS AS A MODEL FOR BETTER UNDERSTANDING OF UNIFORM MOTION
DOI:
https://doi.org/10.51878/community.v5i1.5657Keywords:
Gravity Current, Gerak Lurus Beraturan, Pembelajaran Berbasis VideoAbstract
Secondary school students learn about uniform motion from their physics teachers through either an introductory concept of motion, particularly uniform motion in class or hands-on activities in the laboratory. In the university, students obtain similar treatment with no insight into the best example of uniform motion. In the long term, this may result in learning difficulties when facing real examples in nature. The objectives of this study are two-fold. We first engage 15 high-school physics teachers to observe horizontal motion of fluids with different densities as a model for uniform motion through an approach of video-based learning. We then facilitate them through active engagement during the observations to enrich teachers’ pre-conception of uniform motion. The methods in this study involved watching gravity current videos to examine its propagation and delivering a diagnostic test, designed for enrichment processes. The results showed that overall understandings of the gravity current motions were relatively good amongst the participants despite the newly instructional videos. The approach led to enhanced learning, where good performance on the test was achieved. In turn, the gained understandings could be implemented and used to support goals of better quality of physics teaching in schools through sustainable development of human resources.
ABSTRAK
Siswa sekolah menengah atas belajar tentang gerak lurus beraturan secara teori di kelas melalui pemahaman konsep gerak lurus beraturan dan aktivitas praktikum fisika di laboratorium. Mahasiswa perguruan tinggi juga mendapatkan perlakuan dan pengalaman belajar yang sama tanpa ada kajian mendalam tentang contoh nyata gerak lurus beraturan. Dalam jangka panjang, pengalaman belajar seperti itu bisa menimbulkan masalah kesulitan belajar tentang pemahaman gerak lurus beraturan jika mereka menemui contoh-contoh nyata gerak lurus beraturan dalam kehidupan sehari-hari. Tujuan penelitian pengabdian masyarakat ini ada dua, yaitu pertama melibatkan 15 orang guru fisika sekolah menengah atas untuk mengamati gerak gravity current sebagai model gerak lurus beraturan melalui pendekatan pembelajaran berbasis video dan kedua memfasilitasi para guru tersebut melalui keterlibatan aktif selamat proses pengamatan untuk pengayaan konsep gerak lurus beraturan. Metode penelitian dilaksanakan melalui serangkaian pengamatan video gravity current untuk mempelajari gerak lurus beraturan dan tes diagnostik yang dirancang untuk pengayaaan konsep gerak lurus beraturan. Hasil-hasil tes diagnostik menunjukkan bahwa pemahaman para guru tentang konsep gerak lurus beraturan adalah baik meskipun mereka harus belajar melalui pembelajaran berbasis video yang baru diperkenalkan. Pendekatan pembelajaran dengan media video mampu meningkatkan gairah dan hasil belajar yang ditunjukkan dengan hasil tes diagnostik yang relatif baik. Implikasi proses belajar dengan memanfaatkan video pembelajaran dalam penelitian ini adalah peningkatan pemahaman konsep gerak lurus beraturan yang bisa diterapkan untuk menunjang pengajaran fisika di sekolah.
Downloads
References
Ahmed, D. I. (2017). Experimental and numerical study of model gravity currents in coastal environment: Bottom gravity currents. Dissertation. Université de Bretagne Occidentale- Brest, France. https://theses.hal.science/tel-01810835v1
Benjamin, T. B. (1968). Gravity currents and related phenomena. Journal of Fluid Mechanics, 31, 209-248. https://doi.org/10.1017/S0022112068000133
Benkada, C. & Moccozet, L. (2017). Enriched Interactive Videos for Teaching and Learning, 21st International Conference Information Visualisation (IV), London, UK, pp. 344-349, https://doi.org/10.1109/iV.2017.74
Brame, C. J. (2017). Effective educational videos: principles and guidelines for maximizing student learning from video content. CBE Life Sciences Education, 15(4). https://doi.org/10.1187/cbe.16-03-0125
Cafaro, C. & Rooney, G. G. (2018) Characteristics of colliding density currents: A numerical and theoretical study. Quarterly Journal of the Royal Meteorological Society, 144(715). https://doi.org/10.1002/qj.3337
Derrick, B. & White, P. (2017). Comparing two samples from an individual Likert question. International Journal of Mathematics and Statistics, 18(3), 1-13. http://www.ceser.in/ceserp/index.php/ijms/article/view/4997
Hasan, S., Bagayoko, D. & Kelley, E. L. (1999). Misconceptions and the Certainty of Response Index (CRI). Physics Education, 34(5). https://doi.org/10.1088/0031-9120/34/5/304
Ikeda, J. & Testik, F. Y. (2021) Propagation, deposition, and suspension characteristics of constant-volume particle-driven gravity currents. Environmental Fluid Mechanics, 21(1), 177–208. https://doi.org/10.1007/s10652-020-09756-4
Kokkinos, A. & Prinos, P. (2022). Numerical experiments of partial-depth colliding gravity currents using LES. Environmental Fluid Mechanics, 22(5), 1081-1105. https://doi.org/10.1007/s10652-022-09879-w
Koo, M. & Yang, S-W. (2025). Likert-Type Scale. Encyclopaedia, 5(1). https://doi.org/10.3390/encyclopedia5010018
Linden, P. (2012). Gravity currents: Theory and laboratory experiments. In E. P. Chassignet, C. Cenedese, & J. Verron (Eds.), Buoyancy-Driven Flows (pp. 13–51). chapter, Cambridge: Cambridge University Press. https://doi.org/10.1017/CBO9780511920196.002
Lombardi, V., Adduce C., Sciortino G. & Rocca M. L. 2015. Gravity currents flowing upslope: Laboratory experiments and shallow-water simulations. Physics of Fluids, 27(1). https://doi.org/10.1063/1.4905305
Longo, S., Ungarish, M., Federico, V. D., Chiapponi, L. & Addona F. (2016). Gravity currents produced by constant and time varying inflow in a circular cross-section channel: Experiments and theory. Advances in Water Resources, 90, 10-23. https://doi.org/10.1016/j.advwatres.2016.01.011
Mufit, F., Festiyed, Fauzan, A. & Lufri. (2023). The effect of cognitive conflict-based learning (CCBL) model on remediation of misconceptions. Journal of Turkish Science Education, 20(1), 26-49. https://www.tused.org/index.php/tused/article/view/917/834
Mufit, F., Festiyed, Fauzan, A., & Lufri. (2019). The application of real experiments video analysis in the CCBL model to remediate the misconceptions about motion’s concept. Journal of Physics: Conference Series, 1317(1), 0-10. https://doi.org/10.1088/1742-6596/1317/1/012156
Parwati, N. N. & Suharta, I. G. P. (2020). Effectiveness of the implementation of cognitive conflict strategy assisted by e-service learning to reduce students’ mathematical misconceptions. International Journal of Emerging Technologies in Learning, 15(11), 102-118. https://doi.org/10.3991/IJET.V15I11.11802
Prastowo, T. (2009). On the nature of gravity currents. Jurnal Matematika dan Sains (Journal of Mathematics and Science), 14(3), pp. 76-80.
Rahim, R. A., Noor, N. M. & Zaid, N. M. (2015). Meta-analysis on element of cognitive conflict strategies with a focus on multimedia learning material development. International Education Studies, 8(13), 73–78. https://doi.org/10.5539/ies.v8n13p73
Ruf, A., Zahn, C., Roos, A-L. & Opwis, K. (2023). How do enhanced videos support generative learning and conceptual understanding in individuals and groups? Educational Technology Research and Development, 71, 2243-2269. https://doi.org/10.1007/s11423-023-10275-4
Shin, J. O., S. B. Dalziel S. B. & Linden, P. F. (2004). Gravity currents produced by lock exchange. Journal of Fluid Mechanics, 521, pp. 1-34. https://doi.org/10.1017/S002211200400165X
Simpson, J. E. (1997). Gravity currents in the environment and the laboratory, 2nd ed., Cambridge University Press, Cambridge, UK.
Tjung, E. Y. S. & Kickert, G. A. (2025). Quantitative analysis of gravity currents using the light attenuation technique. Journal of Engineering and Technological Sciences, 57(1), 118-128. https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.9
Zordan, J., Schleiss, A. J. & Franca, M. J. (2018). Structure of a dense release produced by varying initial conditions. Environmental Fluid Mechanics, 18(5), 1101-1119. https://doi.org/10.1007/s10652-018-9586-8
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 COMMUNITY : Jurnal Pengabdian Kepada Masyarakat

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.













