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All Journal Jurnal Info Sains : Informatika dan Sains Jurnal Multidisiplin Sahombu
Hidayat, Ahmad Farrel Al Falubi
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Arts Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Environmental Science Law, Crime, Criminology & Criminal Justice

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Determining Gravitational Acceleration with the Mathematical Pendulum Swing Method Azmi, Valiant Zahirul; Hidayat, Dinnisa Haura Zhafira; Liaramadanty, Liaramadanty; Ambardhani, Muhammad Subhaan; Hidayat, Ahmad Farrel Al Falubi; Ahmad, Adnan; Febrilianto, Yogiek
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 01 (2025): Informatika dan Sains , 2025
Publisher : SEAN Institute

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Pendulum-derived gravitational acceleration values vary unpredictably due to unquantified string length and initial angle dependencies. This study aims to assess the feasibility and precision of the mathematical pendulum swing method in measuring gravitational acceleration. The research investigates the relationship between the pendulum’s string length, oscillation period, and initial deviation angle. It is hypothesized that longer strings will result in slower oscillations while shorter strings produce faster motions. Additionally, the study examines how these factors collectively impact gravitational acceleration measurement. Through controlled experiments, the study’s goal is to determine the precision of the pendulum swing method in determining gravitational acceleration and the factors influencing its reliability. Results demonstrate that a simple mathematical pendulum accurately determines gravitational acceleration with a calculated value of approximately 9.95974m/s². The findings confirm that the square of the oscillation period is directly proportional to the string length (T² ∝ l) and emphasize the importance of maintaining the initial deviation angle under 10 degrees to ensure measurement accuracy. These findings reinforce the pendulum’s utility in physics education and affordable gravitational field assessment, particularly in resource-limited settings. The study provides a foundational framework for improving experimental accuracy in classical mechanics and highlights the method’s enduring relevance in scientific pedagogy and fundamental research.
The Effect of Canteen Service Quality on Customer Satisfaction among Second-Year Students of Labschool Kebayoran High School Hidayat, Ahmad Farrel Al Falubi
Jurnal Multidisiplin Sahombu Vol. 6 No. 02 (2026): Jurnal Multidisiplin Sahombu, 2026
Publisher : Sean Institute

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Service quality is an important factor influencing purchase satisfaction in school canteens, as it affects students’ comfort, loyalty, and overall purchasing experience. This study aims to analyze the level of service quality and its influence on customer satisfaction among second-year students at the school canteen. The research employed a quantitative approach using a survey method. Data were collected through a structured questionnaire based on service quality and customer satisfaction indicators, and the responses were analyzed using descriptive statistical techniques. The results show that the majority of students perceive the canteen service positively, particularly in terms of staff friendliness, responsiveness, purchasing efficiency, cleanliness, and price suitability. Most respondents also expressed satisfaction with their purchasing experience, indicated by their willingness to continue buying from the canteen and to recommend it to other students. These findings demonstrate that good service quality contributes significantly to students’ purchase satisfaction. In conclusion, improving and maintaining service quality in school canteens plays an essential role in enhancing student satisfaction and supporting a positive school environment. The results of this study can serve as a reference for canteen managers and schools to improve service practices and optimize student satisfaction.
Co-Authors Ahmad, Adnan Ambardhani, Muhammad Subhaan Azmi, Valiant Zahirul Febrilianto, Yogiek Hidayat, Dinnisa Haura Zhafira Liaramadanty, Liaramadanty