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All Journal Journal of Teaching and Learning Physics Padma: Jurnal Pengabdian Kepada Masyarakat
Nur Syamsiah, Endah
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Physics Public Health Social Sciences Other

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Sosialisasi dan Identifikasi Tingkat Kepedulian Siswa SMA terhadap Bahaya Paparan Radiasi menggunakan Analisis Rasch Ulya, Naily; Kusumadewi Kuncoro, Alvina; Hadiana Aminudin, Adam; Nur Syamsiah, Endah; Aningsih, Sri; Zikriani Ramdhani, Saumi; Nurhanivah, Devi; Bilqis, Ayesha; Rizka Taufani, Muhammad
PADMA Vol 4 No 1 (2024): JURNAL PENGABDIAN KEPADA MASYARAKAT (PADMA)
Publisher : LPPM Politeknik Piksi Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56689/padma.v4i1.1319

Abstract

To raise awareness among high school students about the risks associated with radiation exposure and gauge their level of worry, the Physics Study Program at Universitas Kebangsaan Republik Indonesia is organizing this event as a community service. 48 high school students from one of Majalaya's high schools—35 in science and 13 in social studies—participated in this activity. Five positive and five negative items were included in the Likert scale questionnaire that was utilized as the instrument. The Rasch analysis was used to find any potential biases and changes in the degree of concern for the risks of radiation exposure following socialization, and the N-gain analysis was used to find changes in that level of concern. Although the results are still low (N-gain = 0.23) and include remarks, they do indicate a shift in students' concerns over the risks of radiation exposure. First, according to the Rasch analysis, 17% of students are able to accurately respond to every statement. For the pretest and posttest, 50% and 70%, respectively, of the students can respond to every statement. Following their participation in socialization, it may be concluded that every student is aware of the risks associated with radiation exposure. Second, except from item number 10 and the suggestion that it should be revised, none of the assertions are biased against any of the groups
DEVELOPMENT OF LITA (LIQUID TILT ACCELEROMETER): AN ALTERNATIVE INSTRUMENT FOR ACCELERATION MEASUREMENT IN LINEAR MOTION EXPERIMENTS Nur Syamsiah, Endah; Rizka Taufani, Muhammad; Hadiana Aminudin, Adam; Panji Firdaus, Hilman; Putra, Adit
Journal of Teaching and Learning Physics Vol. 11 No. 1 (2026): Journal of Teaching and Learning Physics (February 2026)
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jotalp.v11i1.54154

Abstract

This study aims to design an alternative instrument for measuring acceleration in linear motion dynamics experiments, named LiTA (Liquid Tilt Accelerometer). The research employed a Research and Development (R&D) method using the ADPT (Analysis, Design, Prototyping, and Testing) approach. The needs analysis stage was conducted using a questionnaire, and the data were analyzed with VOSviewer. The results of the needs analysis revealed that the required experimental instrument should be easily obtainable at an affordable cost, simple in both operation and maintenance, and Integrated technology with digital support is already available. The design of LiTA utilizes the movement of water in a vessel mounted on a dynamics cart. The object’s acceleration is determined based on the inclination of the water surface inside the vessel. The prototyping of LiTA used transparent acrylic with black striped transparent stickers attached as a reference to help measure the air slope in the vessel. The testing process was carried out by conducting experiments to measure the acceleration of an object, and the results were compared with the theoretical acceleration values. The experimental data were analyzed using a paired sample t-test and the Bland–Altman plot method. The results of the paired sample t-test showed a p-value greater than 0.05, specifically 0.079, at a 95% confidence level. This indicates that there is no significant difference between the calculated acceleration and the experimental acceleration, when the pulley’s moment of inertia is included in the acceleration calculation. All data points fall within the limits of agreement when analyzed using the Bland–Altman plot. The LiTA acceleration measurement instrument can serve as an alternative apparatus for experiments on linear motion dynamics. It provides a feasible solution for measuring acceleration in situations where conventional experimental equipment is limited or unavailable.
Co-Authors Aminudin, Adam Hadiana Aningsih, Sri Bilqis, Ayesha Kusumadewi Kuncoro, Alvina Nurhanivah, Devi Panji Firdaus, Hilman Putra, Adit Rizka Taufani, Muhammad Ulya, Naily Zikriani Ramdhani, Saumi