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All Journal Jurnal Materi dan Pembelajaran Fisika Lensa: Jurnal Kependidikan Fisika Jurnal Tiyasadarma: Jurnal Pengabdian Kepada Masyarakat JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Feri Iskandar
Jurusan Fisika FMIPA, Institut Teknologi Bandung
Humanities Astronomy Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Physics

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A Comparative Study of Sound Resonance Using Arduino-Based Ultrasonic Sensors and Visualization Analysis with Python Iskandar, Feri; Pramudya, Yudhiakto
Jurnal Materi dan Pembelajaran Fisika Vol 14, No 2 (2024): Jurnal Materi dan Pembelajaran Fisika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmpf.v14i2.93454

Abstract

In the modern era, the study of sound resonance in physics laboratories has increasingly incorporated technological tools to improve the experimental process. While conventional approaches to resonance experiments remain common, they often face challenges related to equipment setup and limited real-time data analysis. This research compares conventional methods with Arduino-based techniques, combined with Python for data visualization and analysis, in sound resonance experiments. The integration of Arduino microcontrollers and ultrasonic sensors offers a more accessible and streamlined alternative to conventional resonance measurement techniques, facilitating improved data collection and interpretation. Data is gathered using PLX DAQ software connected to the Arduino system, with the results visualized and analyzed using Python tools. The experiments show that the average air column length when the water in the reservoir was lowered is 16.10 cm, with an error of 3.04%, and when the water was raised, the average length is 15.60 cm, with an error of 5.98%. A 512 Hz sound source was used to determine the fundamental frequency, revealing slight variations due to changes in the measurement distance. Specifically, the fundamental frequency was recorded as (528 ± 5) Hz when the water level was lowered and (545 ± 8) Hz when it was raised. This study highlights the positive role of technology in enhancing physics education and research, particularly in sound resonance studies.
Edukasi Fisika: Pembuatan Es Krim Menggunakan Metode Contextual Teaching and Learning Iskandar, Feri; Okimustava
Jurnal Tiyasadarma Vol. 2 No. 2 (2025): Vol. 2 No. 2 (2025): Januari 2025 | Jurnal Tiyasadarma
Publisher : LPPM ITEBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62375/jta.v2i2.443

Abstract

The low level of scientific literacy in society and the perception of physics as a difficult subject to understand pose significant challenges in enhancing public comprehension and engagement with science. Addressing these challenges requires a contextual learning approach that links physics concepts to everyday activities, enabling the community to better understand and apply scientific knowledge. This program aimed to improve public understanding of physics concepts through a contextual approach applied to ice cream-making activities, while also equipping participants with practical skills that are both educationally and economically beneficial. The activity was attended by 11 participants, mostly housewives from Mekar Sari Housing Complex, Sekupang District, Batam City. Conducted at the Posyandu facility, the program utilized the Contextual Teaching and Learning (CTL) approach, incorporating education sessions, demonstrations, hands-on ice cream making, and reflective discussions. Data collection was carried out through direct observations and Likert-scale-based pre-test and post-test questionnaires to measure participants’ understanding, skills, motivation, and creativity. The results indicated an increase in participants' understanding of physics concepts, with the average pre-test score of 58% rising to 93% in the post-test. The program also successfully enhanced participants’ motivation and creativity in applying physics concepts to everyday life. Positive feedback from participants suggested the sustainable application of the knowledge gained, particularly in home-based ice cream-making activities. This activity effectively improved participants' understanding of physics concepts, motivation, and creativity through a contextual approach based on ice cream-making, providing sustainable educational and practical benefits.
Studi Faktor Kualitas Resonansi Bunyi pada Pipa Organa Tertutup Menggunakan Panjang Efektif Iskandar, Feri; Pramudya, Yudhiakto
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.v9i1.4186

Abstract

This study aims to improve the accuracy of resonance analysis in closed pipe resonance through the measurement of quality factor (Q) and effective air column length. The method employed involves an automated system based on Arduino, equipped with an HC-SR04 sensor to measure distance and a KY-037 sensor to detect sound amplitude, integrated with Python-based data analysis for determining the resonance frequency. The measurement results show that the use of effective length with tube radius correction and improved frequency determination methods can reduce error from 1.33% to 0.24%, as well as decrease the standard deviation from 0.45 cm to 0.37 cm. Furthermore, quality factor analysis indicates an increase in the average value from 20 to 31, suggesting that the implemented resonance system and analysis method provide more accurate results, despite increased variability. Overall, the system successfully delivers more precise measurements in the analysis of resonance characteristics in closed organ pipes, particularly in relation to energy dissipation.
Quantitative Analysis of Ant Motion Using Video Tracking: Evidence of Quasi-Harmonic Oscillatory Behavior Iskandar, Feri; Toifur, Moh
Lensa: Jurnal Kependidikan Fisika Vol. 14 No. 1: June 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v14i1.19593

Abstract

The motion of living organisms, including insects, often appears irregular and complex, making it difficult to describe using simple physical models. Nevertheless, certain biological movements may contain periodic components that can be approximated using basic motion models in physics. This study aims to analyze the movement of an ant using video tracking with the Tracker software to investigate whether its motion exhibits characteristics related to simple harmonic motion (SHM). Motion data were obtained from a recorded video with a frame rate of 20 fps and processed to determine the two-dimensional position projected onto a one-dimensional displacement axis, from which velocity and acceleration were derived using Tracker. The displacement–time analysis shows quasi-periodic fluctuations that can be approximated by a sinusoidal function with an amplitude of approximately 0.042 m and a frequency of about 0.21 Hz. The acceleration–displacement relationship shows a general negative trend consistent with the tendency predicted by SHM, although deviations from ideal linearity are observed. In addition, the velocity–displacement phase diagram does not form a clear elliptical pattern, indicating that the motion does not strictly follow ideal SHM behavior. These findings suggest that ant locomotion exhibits quasi-harmonic characteristics influenced by biological locomotion mechanisms and environmental interactions, demonstrating that video-based motion analysis provides a quantitative approach for examining oscillatory components in natural biological motion.
Co-Authors Moh. Toifur Okimustava Yudhiakto Pramudya