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All Journal Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Journal of Natural Sciences and Mathematics Research Phenomenon : Jurnal Pendidikan MIPA Sawwa: Jurnal Studi Gender Journal of Physics and Its Applications Physics Education Research Journal
Arsini Arsini, Arsini
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Improving the Teachers Skills in Semarang City and Surrounding Areas in Using PhET Simulations Application-Based Virtual Laboratories Istikomah, Istikomah; Arsini, Arsini; Saputri, Affa Ardhi; Jasuri, Jasuri; Susilawati, Susilawati; Fariyani, Qisthi; Herseptianingrum, Rida
Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Vol. 23 No. 2 (2023)
Publisher : LP2M of Institute for Research and Community Services - UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/dms.2023.232.14403

Abstract

The practicum learning process transformed from offline to online during the pandemic. Teachers must have the skills to use virtual laboratory applications to improve the learning process. Community service activities have been carried out in the form of virtual laboratory training to improve the skills of junior-senior high school teachers based on the PhET Simulations application in the city of Semarang and surrounding areas. Evaluation of training activities using the self-assessment questionnaire method before and after the participants attended the training. The questionnaire comprises four aspects of ability: the ability to access the virtual practicum application, use the PhET application via a browser, download simulations on the PhET Simulations application, and use the PhET Simulation application as a means of physics practicum. Based on the analysis of the n-gain test, the results of increasing competence were 32% of participants included in the high category, 30% of participants included in the medium category, and 38% of participants included in the low category.
Morphological, Crystallinity, and Functional Group Analysis of Coconut Shell-Based Activated Carbon with Carbonization Temperature Variations for Supercapacitor Electrode Potential Anggita, Sheilla Rully; Prahesti, Arinda Yukashima Putri; Azizah, Tasya Salsabila; Arsini, Arsini
Journal of Physics and Its Applications Vol 7, No 3 (2025): August 2025
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v7i3.25118

Abstract

Supercapacitors are advanced energy storage devices with high power density and rapid charge–discharge capabilities. This study explores the potential of coconut shell–based activated carbon as an electrode material for supercapacitors. Coconut shell carbon powder was carbonized at temperatures ranging from 400°C to 700°C and chemically activated using 3M KOH for 24 hours. The activated carbon was then filtered, rinsed with distilled water until neutral pH, and dried at 120°C for 4 hours. Characterization was performed using Scanning Electron Microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis, X-ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR). SEM images confirmed the formation of uniformly distributed pores, with higher carbonization temperatures leading to increased pore development. BET analysis showed that both surface area and pore volume increased with rising carbonization temperatures. XRD patterns revealed amorphous graphite-like carbon structures, with improved crystallinity at higher temperatures. FTIR spectra confirmed the presence of aromatic C=C and C–O functional groups. These results demonstrate that activated carbon derived from coconut shells exhibits favorable physicochemical properties, indicating strong potential as a low-cost and sustainable electrode material for supercapacitor applications.
Critical Thinking Skills (CTS) through Augmented Reality Worksheets using The Inquiry-Scaffolding Models Ardhi Saputri, Affa; Ellany Mohtar, Lilia; Arsini, Arsini; Said Prastyo, Irman; Surya Fitra, Ilham
Physics Education Research Journal Vol. 6 No. 1 (2024)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2024.6.1.19657

Abstract

Critical thinking skills (CTS) are important for training in physics. This research aims to train students' CTS through augmented reality worksheets with the inquiry-scaffolding model. The research participants comprised 36 third-semester physics education students at UIN Walisongo Semarang. This research utilized a pre-experimental method employing a one-group pre-test post-test design. The enhanced CTS was assessed using the N-gain test. The analysis of students' CTS yielded four categories: very less critical, less critical, critical, and very critical. Implementing learning through augmented reality worksheets employing an inquiry-scaffolding model enhanced students' CTS by 0.30 with moderate criteria. The breakdown of students' CTS following the augmented reality worksheets with inquiry-scaffolding models showed a distribution of 19.44% less critical, 69.44% critical, and 11.11% very critical. From the research findings, it can be concluded that augmented reality worksheets using the inquiry-scaffolding model effectively train students' CTS in learning physics. Through learning with augmented reality worksheets, students are trained to analyze arguments, consider the validity of various sources, make inferences and general conclusions, and make decisions. Scaffolding procedure: explaining, modeling, and questioning can provide an overview of cause and effect, and abstraction of a concept as a provision to strengthen CTS.
Co-Authors Anggita, Sheilla Rully Ardhi Saputri, Affa Azizah, Tasya Salsabila Ellany Mohtar, Lilia Fariyani, Qisthi Herseptianingrum, Rida Istikomah Istikomah Jasuri Jasuri Joko Saefan Khotijah Khotijah Muhammad Farchani Rosyid, Muhammad Prahesti, Arinda Yukashima Putri Said Prastyo, Irman Saputri, Affa Ardhi Surya Fitra, Ilham Susilawati, Susilawati