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All Journal Jurnal Teori dan Aplikasi Fisika JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Rahma Alliya Aqquilla
Universitas Pendidikan Indonesia
Astronomy Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Designing A Doppler Effect Experiment Using Smartphone Sound Sensor Asep Akmal Fadia Nurhalim; Rahma Alliya Aqquilla; Najmi Hiyan Fathinah; Rizki Zakwandi; Alfiansah Sandian Prakoso; Ika Mustika Sari
Jurnal Teori dan Aplikasi Fisika Vol. 13 No. 02 (2025): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v13i02.511

Abstract

This study explores the design of a Doppler effect experiment using a sound sensor on a smartphone. The main objective is to demonstrate that the change in sound frequency due to the relative motion between the source and the observer can be observed and measured using an easily accessible experimental setup. The experiment was conducted using a smartphone equipped with a sound sensor application to record frequency shifts from a moving sound source. The setup consists of a sound emitter with a constant frequency and either a moving observer or a moving source, making it easy to implement in educational settings. The results indicate that this experiment can effectively detect frequency changes. Data analysis shows an error rate ranging from 3.69% to 3.92%, proving that this method is sufficiently accurate for studying the Doppler effect. These findings highlight that integrating mobile technology into scientific experiments can be a valuable tool for educators, particularly in explaining wave phenomena such as the Doppler effect. Keywords: Doppler Effect, Physics Experiments, Educational Technology
Designing a Restitution Experiment Using Smartphone Sound Sensor Najmi Hiyan Fathinah; Asep Akmal Fadia Nurhalim; Rahma Alliya Aqquilla; Ika Mustika Sari; Alfiansyah Sandion Prakoso; Rizki Zakwandi
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol. 9 No. 1 (2025): May Edition
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jipfri.v9i1.4409

Abstract

This study explores the efficiency level of two experimental methods for determining the coefficient of restitution, which have been widely conducted in previous research. Using smartphones as tools in physics experiments, the coefficient of restitution can be determined through visual analysis (camera) and sound sensors to detect collisions. Phyphox is used to record time intervals and the height of the ball after impact based on the sound of the collision with the floor. Additionally, Tracker is employed for visual motion analysis of the object during the collision. The coefficient of restitution calculated using Phyphox yielded a value of 0.894 ± 0.017, while Tracker provided a value of 0.888 ± 0.014. The results indicate by reviewing the percentage error between the two methods (0.715%), Phyphox and Tracker can provide accurate data for determining the coefficient of restitution, making them effective and efficient physics experiment-based learning tools in schools.
Co-Authors Alfiansah Sandian Prakoso Alfiansyah Sandion Prakoso Asep Akmal Fadia Nurhalim Ika Mustika Sari Najmi Hiyan Fathinah Zakwandi, Rizki