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All Journal Jurnal Fisika Unand SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan
Annisa, Hafizha Fitri
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Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Pengaruh Fraksi Volume Serat Pinang dan Serat Rami Terhadap Sifat Fisis dan Mekanik Komposit Hibrid Sebagai Bahan Dasar Dashboard Mobil Annisa, Hafizha Fitri; Mahyudin, Alimin
Jurnal Fisika Unand Vol 14 No 1 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.1.68-74.2025

Abstract

Research has been conducted on the effect of the volume fraction of jute fiber and areca nut fiber on the physical and mechanical properties of hybrid composites as a base material for car dashboards. This research aims to produce hybrid composites that have mechanical properties that are in accordance with the SNI of car dashboards and are environmentally friendly. The volume fraction of areca fiber and jute fiber is varied with a ratio of 1:1. The method of making samples using the hand lay-up method, which is a method of coating the fibers with the matrix manually. In this study, tensile strength, impact strength, density, and biodegradation tests were conducted. Based on the results of the study, the highest tensile strength value was at a volume fraction of 2% areca nut fiber and 2% jute fiber, namely 20.41 MPa. The highest impact strength value is in the volume fraction of 6% areca nut fiber and 6% jute fiber, which is 0.0206 J/mm^2. The highest density value was found in the volume fraction of 2% areca nut fiber and 2% jute fiber, namely 0.88 g/cm^3. The highest degradation rate was obtained in the volume fraction of 6% areca nut fiber and 6% jute fiber, namely 517%/day. From the research results, the optimum sample composition is in the variation of volume fraction of 2% areca fiber and 2% jute fiber.
EDUKASI FISIKA DAN PRAKTIK ROKET AIR DI MTS N 6 SIJUNJUNG Mardiansyah, Dedi; Fardela, Ramacos; Annisa, Hafizha Fitri; Rifwandi, Rial; Rapitri, Juli Fardilla Diana; Armysa, Rindina
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 4 (2023): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i4.19666

Abstract

ABSTRAKBelajar Fisika bagi beberapa siswa dirasa sulit dan membosankan. Sehingga banyak dari siswa cendrung menghindari Pelajaran fisika. Pelaksanaan pembelajaran yang monoton tanpa praktikum kurang mengembangkan proses berfikir siswa. Padahal kemampuan berfikir siswa dalam membangun konsep Fisika juga bisa dikembangkan melalui kegiatan praktikum. Kegiatan praktikum dapat mengasah rasa ingin tahu siswa dan keterlibatan siswa menjadi lebih besar. Atas dasar itulah kegiatan pengabdian dilakukan dengan tema edukasi Fisika dan praktik roket air di MTSN 6 Sijunjung Sumatera Barat. Siswa diminta terlibat langsung dalam proses kegiatan pembelajaran. Prinsip dasar roket merupakan implemantasi dari perubahan momentum serta Hukum III Newton mengenai aksi-reaksi. Pelaksanaan kegiatan ini dilakukan dengan 3 langkah, yaitu: 1. Ceramah singkat, 2. Demonstrasi langsung, dan 3. Diskusi dan tanya jawab. Dari hasil yang di dapatkan, siswa-siswi lebih antusias belajar fisika karena mereka terlibat langsung didalam praktikum. Diharapkan kedepannya pembelajaran sains juga bisa menggunakan praktikum sebagai salah satu metode untuk meningkatkan minat siswa. Kata kunci: fisika; hukum newton; roket air. ABSTRACTLearning Physics if it is only carried out in class without practical work does not develop students' thinking processes. In fact, students' thinking abilities in building Physics concepts can also be developed through practical activities. Practical activities can hone students' curiosity and increase student involvement. On this basis, service activities were carried out with the theme of Physics education and water rocket practice at MTs N 6 Sijunjung. The basic principle of a rocket is the implementation of changes in momentum and Newton's Third Law regarding action-reaction. From the results obtained, students were more enthusiastic about studying physics because they were directly involved in the practicum. It is hoped that in the future science learning can also use practicums as a method to increase student interest. Keywords: physics; newton's laws; water rocket.
Co-Authors Alimin Mahyudin Armysa, Rindina Dedi Mardiansyah Ramacos Fardela Rapitri, Juli Fardilla Diana Rifwandi, Rial