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Mengukur percepatan gravitasi bumi di beberapa Kota di Indonesia dan Turki dengan mudah: Implementasi Video-based Laboratory berbantuan software tracker. Studi kasus di Pulau Jawa, Kepulauan Riau, dan Istanbul. Medellu, Natania Carmenita; Zahran, Muhammad; Sari, Ika Mustika; Budi, Tri Utomo
Phi: Jurnal Pendidikan Fisika dan Terapan Vol 9, No 2 (2023)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v9i2.17239

ABSTRAK. Percepatan gravitasi bumi merupakan materi fisika yang dipelajari di sekolah. Dalam literatur, nilai percepatan gravitasi bumi sudah ditentukan yaitu sebesar 9,8 atau sering dibulatkan menjadi 10 Faktanya, percepatan gravitasi bumi di setiap tempat bervariasi tergantung pada beberapa faktor, salah satunya jarak suatu tempat terhadap permukaan bumi. Oleh karena itu, penelitian ini bertujuan untuk mengukur percepatan gravitasi bumi di beberapa Kota di Indonesia dan Turki tepatnya di Kota Bandung, Yogya, Riau, dan Istanbul menggunakan analisis gerak jatuh bebas. Dalam pembuktiannya, peneliti mengimplementasikan Video-based Laboratory menggunakan software tracker yang siap dipakai untuk mengukur percepatan gravitasi di berbagai wilayah yang berbeda. Pengukuran dilakukan dengan cara menganalisis rekaman video gerak jatuh bebas yang diambil pada beberapa wilayah tersebut. Hasil analisis menunjukkan bahwa percepatan gravitasi bumi di Bandung, Yogya, Riau dan Istanbul secara berturut-turut ialah 9,69, 9,77, 9,78, dan 9,76. Hasil ini mendekati nilai percepatan gravitasi bumi dalam literatur dan berhasil membuktikan variasi nilai percepatan gravitasi bumi berdasarkan perbedaan jarak kota tersebut terhadap permukaan bumi. Maka dari itu, disimpulkan bahwa pengimplementasiian Video-based Laboratory berbantuan software tracker dapat menjadi opsi proses pengukuran percepatan gravitasi bumi di berbagai wilayah dengan mudah.

Implementasi Video Based Laboratory Menggunakan Software Tracker dalam Menentukan Percepatan Gravitasi Bumi di Berbagai Kota di Pulau Sulawesi Indonesia dan Turki Zahran, Muhammad; Medellu, Natania Carmenita; Sari, Ika Mustika; Rizqi, Muhammad; Selamat, Muhammad Banda
Phi: Jurnal Pendidikan Fisika dan Terapan Vol 10, No 2 (2024)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v10i2.18522

Percobaan gerak jatuh bebas telah dilakukan di berbagai kota di pulau sulawesi dan satu kota di turki dengan tujuan untuk menentukan percepatan gravitasi. Percepatan gravitasi ditentukan dengan mengimplementasikan Video-based laboratory. Data yang diperoleh berupa data video gerak jatuh bebas yang dianalisis dengan menggunakan software tracker. Dari analisis yang dilakukan , didapatkan harga percepatan gravitasi bumi berturut-turut di Kota Jeneponto, Makassar, Minahasa, dan Istanbul sebesar: : 9,793 , 9,778 9,72 , dan 9,76 . Dengan Root Mean Square Deviation (RMSD) berdasarkan aplikasi berturut-turut diperoleh sebesar: (Jeneponto), (Makassar), (Minahasa) dan (Istanbul). Eror hasil pengukuran berada pada orde sehingga dapat diterima keabsahannya. Percepatan gravitasi yang diperoleh mendekati nilai literatur yaitu, . Oleh karena itu, implementasi metode analisis Video-based Laboratory (VBL) menggunakan software tracker dalam menentukan percepatan gravitasi di berbagai belahan bumi, efisien dan efektif dilakukan.

PENGARUH KOMPENSASI FINANSIAL DAN NON FINANSIAL TERHADAP MOTIVASI KARYAWAN PADA PT. ARAYU CIPTA KREASI KOTA MAKASSAR Zahran, Muhammad; Dipoatmodjo, Tenri Sayu Pupitaningsih; Ruma, Zainal; Darmawinata, Widhi Nugraha Sumiharja
Jurnal Manajemen Vol 3, No 2 (2023): Agustus
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jm.v3i2.53944

Abstrak. Tujuan penelitian ini untuk mengetahui Pengaru Kompensasi Fianansial dan Non Fianansial secara parsial dan simultan. Sampel yang diambil adalah sampel jenuh dengan total sampel 81 Karyawan PT. Arayu Cipta Kreasi yang telah dipilih berdasarkan kriteria yang telah ditentukan terlebih dahulu. Teknik pengumpulan data dilakukan dengan kuesioner dan studi pustaka. Teknik analisis data terdiri dari uji validitas, uji reabilitas, uji asumsi klasik yang terdiri dari uji normalitas, uji multikoliearitas, dan uji heteroskedastisitas, uji analisis linier berganda, uji hipotesis, uji koefisien determinasi. Temuan dalam variabel ini memperlihatkan bahwa secara parsial variabel X1 yaitu, Kompensasi Finansial bersifat positif dan memiliki pengaruh yang signifikan terhadap variabel Y yaitu, Motivasi Karyawan, sama dengan variabel X2 yaitu, Kompensasi Non Finansial memiliki pengaruh positif dan signifikan terhadap variabel Y yaitu, Motivasi Karyawan. Berdasarkan hasil analisis tersebut dapat diketahui bahwa secara parsial variabel Kompensasi Finansial berpengaruh signifikan terhadap Motivasi Karyawan (H1) diterima. Diketahui pula secara parsial variabel Kompensasi Non Finansial berpengaruh signifikan terhadap Motivasi Karyawan (H2) diterima. Dari hasil analisis tersebut dapat pula diketahui bahwa secara simultan Kompensasi Finansial dan Kompensasi Non Finansial memiliki pengaruh yang signifikan terhadap Motivasi Karyawan (H3) diterima.Kata kunci: Kompensasi Finansial, Kompensasi Non Finansial, dan Motivasi KaryawanAbstract . The aim of this research is to determine the influence of financial and non-financial compensation partially and simultaneously. The sample taken was a saturated sample with a total sample of 81 PT employees. Arayu Cipta Kreasi has been selected based on predetermined criteria. Data collection techniques were carried out using questionnaires and literature studies. Data analysis techniques consist of validity tests, reliability tests, classic assumption tests consisting of normality tests, multicollinearity tests, and heteroscedasticity tests, multiple linear analysis tests, hypothesis tests, coefficient of determination tests. The findings in this variable show that partially variable X1, namely, Financial Compensation, is positive and has a significant influence on variable Y, namely, Employee Motivation, the same as variable . Based on the results of this analysis, it can be seen that partially the Financial Compensation variable has a significant effect on Employee Motivation (H1). It is also known that partially the Non-Financial Compensation variable has a significant effect on Employee Motivation (H2). From the results of this analysis, it can also be seen that simultaneously Financial Compensation and Non-Financial Compensation have a significant influence on Employee Motivation (H3). Keywords : Financial Compensation, Non - Financial Compensation, and Employee Motivation

Penanaman Apotik Hidup Dan Kebersihan Lingkungan Utama, Agustian; Susanti, Apriani; Pasaribu, Ayu Maya Sari; Zahran, Muhammad; Saputra, Alwi; Akbar, Anjas Siratul; Moulina, Methatias Ayu; Nuraini, Hesti; Fariadi, Herri
Jurnal Dehasen Mengabdi Vol 4 No 1 (2025): Maret-Agustus
Publisher : Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/jdm.v4i1.8096

To improve environmental quality, environmental knowledge has an important role in preserving the environment, because through knowledge humans increasingly understand and are aware of the dangers of household waste to the environment, especially the dangers of pollution to human health. Family income is any form of remuneration obtained as reward or remuneration for someone's contribution to the production process. Family income can come from one's own business (self-employment), work for other people, and income from property (assets). It is not that housewives, farmers and traders do not want to make goods from recycled plastic waste in their efforts to make them into new goods that are useful and have added economic value, but because they do not know what economic added value is and the processing of plastic waste and what the benefits are for increasing The income they get from their families can be seen from their enthusiasm during community service activities, even at the end of the activity, all participants expressed their gratitude for having been taught about processing plastic waste into new items that are useful and of high economic value and hope that they will continue to be accompanied and continue to hold activities like this.

Post-pandemic e-teaching: Developing the Game for Microscopic Atom Simulation (GEMAS) to enhance students' scientific conceptions of phase structures Zahran, Muhammad; Samsudin, Achmad; Novia, Hera; Fratiwi, Nuzulira Janeusse; Nurdini, Nurdini; Ningsih, Dena Tresna; Nugraha, Eki; Nasbey, Hadi; Sözbilir, Mustafa
Journal of Environment and Sustainability Education Vol. 3 No. 1 (2025)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v3i1.55

This research focuses on the early development of GEMAS (Game for Microscopic Atom Simulation) as an innovative digital teaching tool designed to support instruction on phase structures in physics education. In response to the post-pandemic shift towards technology-enhanced teaching, GEMAS was developed to integrate interactive, simulation-based pedagogy that enhances conceptual visualization. The study follows the 3D model (Define, Design, and Develop) and employs Multifaceted Rasch Measurement (MRFM) for evaluation. Validation was conducted by five experts, assessing curriculum alignment, scientific accuracy, language clarity, visual arrangement, and instructional effectiveness. These dimensions align with best practices in e-teaching, ensuring accessibility, engagement, and pedagogical rigor. MRFM analysis confirms the tool’s validity, with positive average scores across all indicators. The findings suggest that GEMAS is a well-designed digital resource, ready for implementation to enhance physics instruction in post-pandemic educational settings. The implications of this study extend beyond validating GEMAS as a tool; it demonstrates how immersive 3D simulations can address persistent misconceptions in physics education, particularly in post-pandemic contexts where digital engagement is critical. By bridging abstract concepts with interactive visualization, GEMAS offers a scalable model for enhancing e-teaching practices and fostering deeper conceptual understanding among students.

Post-pandemic e-teaching: Developing the Game for Microscopic Atom Simulation (GEMAS) to enhance students' scientific conceptions of phase structures Zahran, Muhammad; Samsudin, Achmad; Novia, Hera; Fratiwi, Nuzulira Janeusse; Nurdini, Nurdini; Ningsih, Dena Tresna; Nugraha, Eki; Nasbey, Hadi; Sözbilir, Mustafa
Journal of Environment and Sustainability Education Vol. 3 No. 1 (2025)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v3i1.55

This research focuses on the early development of GEMAS (Game for Microscopic Atom Simulation) as an innovative digital teaching tool designed to support instruction on phase structures in physics education. In response to the post-pandemic shift towards technology-enhanced teaching, GEMAS was developed to integrate interactive, simulation-based pedagogy that enhances conceptual visualization. The study follows the 3D model (Define, Design, and Develop) and employs Multifaceted Rasch Measurement (MRFM) for evaluation. Validation was conducted by five experts, assessing curriculum alignment, scientific accuracy, language clarity, visual arrangement, and instructional effectiveness. These dimensions align with best practices in e-teaching, ensuring accessibility, engagement, and pedagogical rigor. MRFM analysis confirms the tool’s validity, with positive average scores across all indicators. The findings suggest that GEMAS is a well-designed digital resource, ready for implementation to enhance physics instruction in post-pandemic educational settings. The implications of this study extend beyond validating GEMAS as a tool; it demonstrates how immersive 3D simulations can address persistent misconceptions in physics education, particularly in post-pandemic contexts where digital engagement is critical. By bridging abstract concepts with interactive visualization, GEMAS offers a scalable model for enhancing e-teaching practices and fostering deeper conceptual understanding among students.

Fostering Celestial Curiosity: The SEAROAD Astronomy Workshop for the Professional Development of Indonesian Science Educators Utama, Judhistira Aria; Zahran, Muhammad; Apryandi, Feri; Asmoro, Cahyo Puji; Liliawati, Winny; Saputra, M. Reza Dwi
Jurnal Pemberdayaan Masyarakat Vol 4, No 4 (2025)
Publisher : Yayasan Keluarga Guru Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46843/jpm.v4i4.553

Community engagement in science is essential for building a knowledgeable and inspired society. This paper reports on the SEAROAD (Southeast Asia Regional Outreach Astronomy Development) Astronomy Workshop, a community service initiative designed to enhance science educators' understanding of astronomy and their confidence in teaching it. The two-day program in Bandung, West Java, involved 36 participants from diverse educational backgrounds. Pre-workshop assessments measured the baseline knowledge of participants on topics such as light pollution, telescope use, and celestial phenomena. At the same time, post-workshop surveys evaluated shifts in attitudes, perceived relevance, and interest in astronomy. Results revealed notable gaps in prior knowledge and demonstrated significant cognitive gains, with most participants achieving moderate to high normalized change scores. The workshop also strengthened pedagogical self-efficacy, particularly in integrating astronomy into classroom practice. This study presents one of the first systematic evaluations of an astronomy-focused teacher professional development intervention in Indonesia, implemented through a tripartite collaboration that combines local pedagogy, public science communication, and regional scientific partnerships. These findings highlight the effectiveness of short-term, hands-on, and contextually relevant professional development as a model for advancing science education and fostering sustained public interest in astronomy. Beyond its practical outcomes, this study contributes to the broader discourse on teacher professional development by offering an evidence-based framework for how collaborative, intensive, and contextually grounded astronomy training can effectively enhance both cognitive and affective domains of educators in developing countries.

Design and psychometric validation of a metacognitive instrument for physics learning: A focus on heat concepts Novia, Hera; Siska Dewi Aryani; Andhy Setiawan; Zahran, Muhammad
Journal of Advanced Sciences and Mathematics Education Vol. 5 No. 2 (2025): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jasme.v5i2.818

Background: Metacognitive knowledge, awareness of one's own cognition, tasks, and learning strategies, is critical for independent learning but is often underemphasized in physics education. Aim: This study aimed to develop and validate a questionnaire to measure high school students’ metacognitive knowledge within the specific context of physics, focusing on the topic of heat. Method: The research involved content validation by six physics education experts and construct validation through empirical testing with 163 high school students. Content validity was established using Aiken’s V, while construct validity and reliability were evaluated using Rasch model analysis. Results: The final instrument consisted of 28 items, of which 26 met the Rasch model fit criteria. The analysis confirmed high person reliability (0.82) and item reliability (0.98), indicating strong internal consistency and measurement stability. Conclusion: The findings support the questionnaire's validity and reliability as a tool for assessing metacognitive knowledge in physics. This validated instrument provides a foundation for future research and instructional practices aimed at enhancing students' metacognitive skills

Instrument for resonance accuracy and misconception analysis (IRAMA): Development to identify sound wave conceptions with rasch Aminudin, Adam Hadiana; Syamsiah, Endah Nur; Taufani, Muhammad Rizka; Prasetia, Yuda; Samsudin, Achmad; Zahran, Muhammad
Journal of Environment and Sustainability Education Vol. 4 No. 1 (2026)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v4i1.139

The Instrument for Resonance Accuracy and Misconception Analysis (IRAMA) was developed to identify college students’ sound wave resonance conceptions with Rasch. The Identify, Design, Development, Evaluation (IDDE) was used with 30 participants (9 females and 21 males) from one of the universities in Bandung, and four experts (2 in physics and 2 in education) served as IRAMA validators. Rasch analysis used Minifac 4.4.0 (MF-RM) with the rater reliability of 0.75, Infit-MnSq values of 0.77–1.38, and Outfit-MnSq values are outside the ideal limits on item 5 (3.72) (the rest is ideal). With Jamovi 2.7.2, we confirmed the presence of bias in one of the raters for item 5. The Ministep 5.10.1, based on conceptual categories, Full Understanding (FU), Partial Plus (PP), Partial Minus (PM), Don't Understand (DU), Misconception (MC), and Not Defined (ND). Meanwhile, identification for confidence is based on Full Confidence (FC), Partial Confidence (PC), Not Confidence (NC), and Not Defined (ND). The Cronbach Alpha reliability for conception (0.84), with the highest being in the PM category (27%), and the lowest is in the DU and ND categories (10%). For confidence, the Cronbach Alpha reliability (0.91), with the highest category is in FC (77%), and the lowest is in the ND category (6%). IRAMA is also free from bias towards gender for conception and confident answers (PROB>5% and meet the threshold DIF Contras). Thus, the IRAMA can be an instrument to identify resonance conceptions and, in the future, will be an tool in resonance Augmented Reality (AR) application.

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