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All Journal Momentum: Physics Education Journal
Kadir Hocaoğlu
Dokuz Eylül University, Turkey
Physics

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Measurement of spring constants of various spring-mass systems by using smartphones: a teaching proposal Mustafa Erol; Kadir Hocaoğlu; Şeyda Kaya
Momentum: Physics Education Journal Vol 4 No 1 (2020)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.133 KB) | DOI: 10.21067/mpej.v4i1.4150

Abstract

This study aims to develop a teaching proposal to measure spring constants of various spring-mass systems by means of the smartphones. Specifically, a single spring-mass system, a serial connected and a parallel connected spring systems are experi-mentally resolved, by using the ambient light sensor of the smartphones. The measurements are achieved by simply recording the light intensity, detected by the oscillating smartphone, as a function of time for the simple harmonic motion. Using the light intensity-time graphs, the average periods and eventually the spring constants are estimated and the outcomes are compared with the theoretical results. The overall outcomes of the work indicate some 3,3 % relative error for the serial connected springs and 10,8 % relative error for the parallel connected springs. The approach is important in the sense that the apparatus directly plots instantaneous momentum-time graphs and it creates an enjoyable and beneficial teaching atmosphere.
Co-Authors Mustafa Erol Şeyda Kaya