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All Journal WAPFI (Wahana Pendidikan Fisika) Journal of Teaching and Learning Physics Jurnal Inovasi dan Pembelajaran Fisika Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Teori dan Aplikasi Fisika Bubungan Tinggi: Jurnal Pengabdian Masyarakat Didaktika: Jurnal Kependidikan PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) U-Teach: Journal of Young Physics Education Teacher
Ika Mustika Sari
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Electrical & Electronics Engineering Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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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
Investigation of High School Students’ Conceptual Understanding of Light Waves: Survey in West Java Syafnah Aisyah Nauli Harahap; Ika Mustika Sari; Dadi Rusdiana
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14570

Abstract

Conceptual understanding is key to learning. It serves as the groundwork that enables students to apply concepts and build higher-order skills. However, previous studies have shown that students’ conceptual understanding of light waves remains limited, and comprehensive data across multiple regions are still lacking. This study investigates students’ conceptual understanding of light waves in West Java. The sample comprised 189 twelfth-grade students who had completed instruction on light waves, selected using a random sampling technique. Employing a survey design with a quantitative descriptive approach, data were analyzed using Rasch Model techniques. The instrument used was a 29-item multiple-choice Light Phenomena Conceptual Assessment (LPCA) which has been validated and reported as reliable. Based on person logit scores, results indicate that 58.73% of students fall into the low-ability category, 26.98% into the medium category, and 14.29% into the high category. These results indicate that majority of students have not yet attained an adequate level of conceptual understanding and still experience difficulties in understanding light wave concepts, which may limit their problem-solving abilities. These outcomes can inform educators and researchers in designing instructional strategies and learning media to more effectively teach light wave concepts and thereby improve students’ conceptual grasp.
Co-Authors A. Suhandi Alfiansah Sandian Prakoso Asep Akmal Fadia Nurhalim Chieka Mariskha Duden Saepuzaman, Duden Elsa Karolina Karo-Karo Ghaida Prinisa Achmad Hera Novia Irianto Tedja Komarudin Komarudin Misykah Aulia Anwar Muhhammad Fadlan Mutia Hariza Lubis Najmi Hiyan Fathinah Nida Fiqroh Fithriyah Niendhita Dwi Nurmalasari Nour Fadillah Nur Aini Parlindungan Sinaga Rahma Alliya Aqquilla Resi Helina Sari Saeful Karim Selly Feranie Siska Dewi Aryani Syafnah Aisyah Nauli Harahap Unang Purwana Vivi Mardian Widia Linta Nurjanah Winny Liliawati Zakwandi, Rizki