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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Fisika : Fisika Sains dan Aplikasinya
Pangestuti, Anisa
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Astronomy Earth & Planetary Sciences Education Electrical & Electronics Engineering Materials Science & Nanotechnology Mathematics Physics

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PERBANDINGAN GEOMETRI BILAH KINCIR AIR DALAM MEMANFAATKAN AIR SEBAGAI PEMBANGKIT TENAGA LISTRIK Safira, Ledya; Pangestuti, Anisa; Safna, Thasyara; Kusumah, Fuji Hernawati
Jurnal Fisika : Fisika Sains dan Aplikasinya Vol 8 No 2 (2023): Jurnal Fisika : Fisika Sains dan Aplikasinya
Publisher : Universitas Nusa Cendana

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Abstract

Kincir Air adalah salah satu contoh alat energi terbarukan yang dimanfaatkan untuk pembangkit listrik. Namun, geometri bilah kincir air sederhana masih harus diteliti. Penelitian ini bertujuan untuk menganalisis besar arus dan tegangan listrik, menganalisis daya listrik, dan membandingkan nyala lampu yang dihasilkan dari 3 jenis geometri bilah kincir air. Pengukuran arus dan tegangan listrik dengan metode mengatur selektor multimeter sebesar 20mA dan 20V. Besar daya listrik yang dihasilkan menggunakan rumus . Menggunakan 3 jenis geometri bilah kincir air yang berbeda, yaitu kotak, datar dan lengkung. Geometri 1, 2 dan 3 menghasilkan arus listrik rata-rata sebesar 0,0088A; 0,0056A; dan 0,0096. Besar tegangan listrik rata-rata yang dihasilkan sebesar 1,327; 0,337 dan 0,827. Nyala lampu rata-rata yang dihasilkan dari 3 jenis geometri bilar kincir air yaitu mati dan redup. Serta besar daya listrik rata-rata yang dihasilkan dari 3 jenis geometri sebesar 0,0117; 0,0019 dan 0,0079. Berdasarkan hasil penelitian, geometri bilah kincir air yang menghasilkan daya listrik paling besar adalah kotak. Tetapi, geometri kincir air masih harus diteliti lebih lanjut menggunakan alat yang lebih canggih.
Web-based Interactive Visual Media in Teaching Momentum and Impulse to Improve Students' Conceptual Understanding Pangestuti, Anisa; Amarulloh , Reza Ruhbani; Farizi, Taufiq Al
Jurnal Pendidikan Matematika dan Sains Vol. 14 No. 1 (2026): February 2026
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpms.v14i1.90237

Abstract

This study aims to develop a visual and interactive learning platform using Google Sites to enhance students’ understanding of momentum and impulse concepts. The research applies a Research & Development with the 4-D model: Define, Design, Develop, and Disseminate. The research instruments included tests, expert validation, and a User Experience Questionnaire, which was completed by students and teachers, covering six dimensions of assessment. The research findings show: (1) The validity scores for the material (94.29%), media (98.3%), and language (96.88%) aspects all fall into the “Highly Feasible” category. These results indicate that the Google Sites–based instructional media is highly feasible for teaching Momentum and Impulse concepts. (2) In terms of practicality, the media achieved scores of attractiveness (2.143), clarity (1.764), efficiency (2.136), accuracy (1.886), stimulation (2.150), and novelty (1.929). These results reflect a highly positive user experience across all aspects measured by the UEQ. (3) The N-Gain test results show a score range of 0.46-0.95 with an average of 0.74 (high category), proving that Google Sites instructional media is quite effective in improving students' conceptual understanding. The use of this instructional media has the potential to contribute to Sustainable Development Goal (SDG) 4: Quality Education by promoting inclusive and equitable learning opportunities. Through the integration of Google Sites, students are encouraged to engage in independent learning, making education more accessible and adaptable to diverse learning needs.
Co-Authors Amarulloh , Reza Ruhbani Fuji Hernawati Kusumah Safira, Ledya Safna, Thasyara Taufiq Al Farizi