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All Journal Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) JGK (Jurnal Guru Kita)
Syalomita Sihite
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Chemistry Education Environmental Science Physics Social Sciences Other

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Pemanfaatan Simulasi Interaktif Phet Wave Interference Untuk Meningkatkan Pemahaman Konsep Eksperimen Celah Ganda Pada Mahasiswa Pendidikan Fisika Nazwa O Aiska Purba; Syalomita Sihite; Yepta S. Lumban Raja
JGK (Jurnal Guru Kita) Vol. 9 No. 2: Maret 2025 (Article In Progress )
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jgk.v9i2.64298

Abstract

Eksperimen celah ganda merupakan salah satu demonstrasi fundamental dalam fisika yang menunjukkan sifat gelombang cahaya melalui fenomena interferensi. Penelitian ini bertujuan untuk mengevaluasi pemahaman mahasiswa terhadap eksperimen celah ganda, tantangan yang dihadapi, serta efektivitas penggunaan simulasi PhET dalam pembelajaran. Penelitian ini Menggunakan metode deskriptif kuantitatif, dimana data dikumpulkan melalui kuesioner daring yang disebarkan kepada mahasiswa Program Studi Pendidikan Fisika FMIPA UNIMED angkatan 2021. Hasil penelitian menunjukkan bahwa mahasiswa menghadapi kesulitan dalam memahami konsep yang abstrak seperti interferensi cahaya dan pola difraksi. Namun, penggunaan simulasi PhET secara signifikan membantu meningkatkan pemahaman mahasiswa dengan memberikan visualisasi interaktif terhadap fenomena yang sulit diamati secara langsung. Simulasi ini memungkinkan modifikasi parameter eksperimen untuk memperjelas konsep pola terang-gelap pada interferensi dan difraksi. Penelitian ini merekomendasikan integrasi lebih luas dari simulasi PhET dalam pembelajaran fisika untuk mendukung pemahaman konsep abstrak dan meningkatkan keterlibatan aktif mahasiswa.
Pengembangan LKPD Fisika Berbasis Android dengan Pendekatan Saintifik pada Materi Usaha dan Energi Syalomita Sihite; Irham Ramadhani
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 3 (2026): August (Inpres)
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i3.2198

Abstract

Physics learning on Work and Energy still faces challenges in the form of students' poor understanding of abstract concepts and the suboptimal use of digital technology as a learning medium. Therefore, the development of Android-based worksheets with a scientific approach is necessary to support more interactive and meaningful learning. This study aims to develop an Android-based physics student worksheet (LKPD) with a scientific approach to the topic of Work and Energy and to test its validity, practicality, and effectiveness. This study employed the Research and Development (R&D) method with the ADDIE model, encompassing the stages of analysis, design, development, implementation, and evaluation. The subjects were 11th-grade students of SMA Negeri 1 Lae Parira, selected using cluster random sampling. The research instruments included validation sheets from material experts and media experts, questionnaires from educators and students, and learning outcome tests. Data were analyzed descriptively using quantitative percentages and the N-Gain test. The results showed that the developed Android-based physics LKPD achieved a very high level of validity, with validation percentages from media experts of 94.5% and from material experts of 93.5%. The practicality level based on educator responses reached 93%, while student responses in the small-group and large-group tests were 90.51% and 89.25%, respectively, categorized as very practical. The effectiveness test results showed an increase in student learning outcomes with an average pretest score of 58.82 and a posttest score of 88.16, along with an N-Gain score of 0.70, which is categorized as moderate. Thus, the Android-based physics worksheet with a scientific approach to the Work and Energy material is declared valid, practical, and effective for use in physics learning.
Co-Authors Irham Ramadhani Nazwa O Aiska Purba Yepta S. Lumban Raja