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All Journal PRISMA FISIKA Jurnal Eduscience (JES)
Ananda, Ria
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Earth & Planetary Sciences Education Physics Other

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Pemodelan Lintasan Komet pada Tata Surya dengan Variasi Massa dan Posisi Ananda, Ria; Sampurno, Joko; Lapanporo, Boni Pahlanop
PRISMA FISIKA Vol 6, No 1 (2018)
Publisher : Jurusan Fisika, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1087.373 KB) | DOI: 10.26418/pf.v6i1.23604

Abstract

Telah dilakukan penelitian untuk mensimulasi lintasan komet menggunakan Metode Leapfrog. Penelitian ini menggunakan data massa, posisi dan kecepatan delapan planet serta komet. Data massa dan posisi awal komet divariasikan untuk melihat variasi lintasan komet yang dihasilkan. Adapun variasi massa komet yaitu 1x109 kg, 1x1015 kg dan 2,2x1014 kg, dan variasi posisi awal komet pada sumbu x, yaitu 2,25 AU dan 10,5 AU serta pada sumbu y, yaitu -8 AU dan -20 AU. Hasil simulasi menunjukkan bahwa lintasan komet bervariasi bergantung dengan massa dan posisi awalnya dan tidak mengganggu keteraturan lintasan planet. Lintasan planet tidak stabil dan mengalami pergeseran ketika massa komet diperbesar hingga 500 kali massa bumi. Arah lintasan komet dapat diverifikasi dengan potensial gravitasi. Gerak komet cenderung terbelokkan ketika memasuki potensial gravitasi yang lebih tinggi. Hasil pada penelitian ini menunjukkan bahwa Metode Leapfrog dapat digunakan untuk menentukan persamaan gerak komet. Kata Kunci : Metode Leapfrog, Pemodelan Lintasan Komet, Potensial Gravitasi
STUDENT ACTIVITIES AND PERCEPTIONS OF WEB-BASED VIRTUAL LABORATORY: INSIGHT FROM PHYSICS LEARNING Setiawan, Tulus; Suwanda, Rizki; Anshari, Said Fadlan; Ananda, Ria; Fanita, Fanita
JURNAL EDUSCIENCE Vol 12, No 1 (2025): Jurnal Eduscience (JES), (Authors from Philippines, Thailand, and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v12i1.6449

Abstract

Purpose-The implementation of web-based virtual laboratories in physics education has significant potential to enhance students' scientific process skills and conceptual understanding of physics. The objectives of this study are: (1) to analyze the impact of implementing an interactive web-based virtual laboratory in activitiy physics learning, and (2) to describe students' perceptions of the use of this virtual laboratory.Methodology-The research design follows a pre-experimental method with a one-shot case study approach. The population consisted of all twelfth-grade students, distributed across four classes with consisting of 24 students for the samples. Observations of students’ scientific process skills were conducted to assess the intervention's impact. A questionnaire was administered after the learning session to measure students’ SPS activities before and after the intervention.Findings—The results of the observational data analysis on scientific process skills revealed an average activity percentage of 90.3%, indicating that the interactive web-based virtual laboratory is highly effective in supporting virtual practical-based learning. Additionally, the analysis of students' perceptions showed an average perception score of 86.42%, categorized as "very good."Significance– These findings suggest that virtual laboratories can serve as an innovative solution in physics education. However, improvements in operational aspects are still necessary to overcome existing challenges.Keywords: Virtual laboratory Student activities Perception Physics learning Website
Co-Authors Boni Pahlanop Lapanporo Fanita, Fanita Joko Sampurno Rizki Suwanda Said Fadlan Anshari Tulus Setiawan