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All Journal JOURNAL ONLINE OF PHYSICS Jurnal Penelitian Pembelajaran Fisika JIFP (Jurnal Ilmu Fisika dan Pembelajarannya)
Rita Sulistyowati
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Education Physics

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Pengembangan e-LKPD Praktikum Fisika Pada Materi Gerak Harmonik Sederhana Berbantuan Aplikasi Phyphox Untuk Meningkatkan Pemahaman Konsep Peserta Didik Dedi Ariyansah; Lukman Hakim; Rita Sulistyowati
Jurnal Penelitian Pembelajaran Fisika Vol 12, No 2 (2021): SEPTEMBER 2021
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jp2f.v12i2.9052

Abstract

Pembelajaran jarak jauh (PJJ) atau daring diperlukan bahan ajar elektronik yang dapat menunjang jalanya proses pembelajaran fisika. Tujuan penelitian ini adalah bahan ajar berupa e-LKPD berbasis discovery learning praktikum fisika pada materi gerak harmonik sederhana untuk meningkakan pemahaman konsep berbantuan aplikasi phyphox yang layak berdasarkan validitas, kepraktisan dan keefektifan. Penelitian ini merupakan penelitian pengembangan (Recearch and Development) dengan model pengembangan model ADDIE yakni Analisys, Design, Development, Implimentation, dan Evaluation. Hasil data analisis mennunjukkan bahwa e-LKPD yang dikembangkan mendapat persentase validitas sebesar 87,6% dengan kategori valid, hasil kepraktisan rata-rata 78,8% dan hasil keefektifan mendapatkan hasil rata-rata skor N-Gain 0,71 ­dengan kategori tinggi. Dengan demikian berdasarkan e-LKPD  yang dikembangkan layak digunakan dalam proses pembelajarn fisika
Pengembangan E-LKPD Eksperimen Berbasis Inkuiri Terbimbng Berbantuan Phyphox untuk Meningkatkan Pemahaman Konsep Nora Nora; Lukman Hakim; Rita Sulistyowati
Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) Vol 6 No 1 (2022): Jurnal Ilmu Fisika dan Pembelajarannya (JIFP)
Publisher : Program Studi Pendidikan Fisika, UIN Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.68 KB) | DOI: 10.19109/jifp.v6i1.10374

Abstract

This study is to describe the validity, practicality and effectiveness of the guided inquiry-based physics e-LKPD experimental guide on collision material assisted by the Phyphox application to improve students' conceptual understanding. This research is research and development, while the development model used is the ADDIE model. Methods of collecting research data with surveys, interviews and questionnaires. The results showed that the e-LKPD Physics experimental guide was generated as a whole from the assessment of several aspects of the three validators including the material aspect, an average value of 87% was obtained in the valid category, the language aspect obtained an average value of 87% in the valid category and the media aspect. obtained an average of 89% with a valid category. Then the value of the practicality of the product from the students obtained an average of 84.30% in the practical category. So that from distributing questionnaires about the product to validators and students, the product is declared suitable for use in a wider scope. While the effectiveness of students in using the product is obtained from the N-gain formula with an average value of 0.7 with a high category
ANALISIS UJI TARIK KOMPOSIT SERAT BATANG KELAKAI DENGAN VARIASI KATALIS UNTUK PEMBUATAN MATERIAL BUMPER MOBIL Muhammad Rusly; Rita Sulistyowati; Parmain Lumban Toruan
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 1 (2023): JOP (Journal Online of Physics) Vol 9 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i1.27670

Abstract

A research was conducted to create car bumper materials using natural kelakai plant fibers combined with a catalyst and resin as a binding agent in the composite. The main goal of the study was to examine the tensile strength of the kelakai fiber composite with different catalyst variations and assess the impact of these catalyst changes on the bumper material's tensile strength. The composite materials were prepared in three test specimens with catalyst compositions of 2,5%, 5%, and 7,5%, respectively, based on a 20 mL resin composition. These samples underwent tensile testing using a Universal Testing Machine (UTM). The results revealed that the tensile strength of the kelakai fiber composite increased with higher catalyst percentages. At 2,5%, 5%, and 7,5% catalyst compositions, the tensile strengths were measured as 0,37 N/mm2, 0,41 N/mm2, and 0,47 N/mm2, respectively. Additionally, the elongation values for the catalyst portion are 1,11%, 2,22%, and 3,89% and the Young's modulus values are 0,33 N/mm2, 0,18 N/mm2, and 0,12 N/mm2, respectively. The study demonstrates the significant influence of catalyst variations on the tensile strength of the kelakai fiber composite.
Co-Authors Dedi Ariyansah Jamhari Jamhari Lukman Hakim Muhammad Rusly Nora Nora Parmain Lumban Toruan