Amplitudo : Jurnal Ilmu dan Pembelajaran Fisika

Inovasi Energi Terbarukan : Biogas Pengelolaan Sampah Organik

2025-07-10T05:07:05+00:00

Limbah organik dari sisa konsumsi rumah tangga, seperti buah-buahan, masih menjadi sumber pencemaran lingkungan jika tidak dikelola dengan baik. Salah satu solusi yang berkelanjutan adalah memanfaatkannya sebagai bahan baku energi terbarukan, yaitu biogas. Penelitian ini bertujuan untuk mengevaluasi potensi produksi biogas dari tiga jenis limbah buah, yaitu nanas, apel, dan semangka, serta membandingkan efisiensi energi yang dihasilkan dari masing-masing bahan baku. Metode yang digunakan adalah eksperimen fermentasi sederhana menggunakan wadah tertutup yang dilengkapi sistem penyalur gas. Masing-masing jenis buah difermentasi selama lima hari dengan campuran air dan starter mikroba (EM4). Volume gas diamati secara visual, sedangkan kualitas gas diukur melalui uji nyala api menggunakan suntikan dan stopwatch. Hasil menunjukkan bahwa limbah nanas menghasilkan biogas paling banyak dengan waktu nyala api selama 5 detik, diikuti oleh apel 2 detik dan semangka 1 detik. Perubahan massa juga mencerminkan keluarnya gas, dengan nanas menunjukkan selisih berat paling besar. Dapat disimpulkan bahwa limbah nanas memiliki potensi tertinggi sebagai bahan baku biogas dibandingkan dua jenis buah lainnya. Penelitian ini menunjukkan bahwa pemanfaatan limbah buah dapat menjadi alternatif solusi pengelolaan sampah organik sekaligus mendukung pengembangan energi terbarukan skala rumah tangga.

Pengembangan Website Game-Based Learning Materi Usaha dan Energi

2025-07-23T18:22:19+00:00

Pembelajaran fisika sering dianggap sulit oleh siswa karena konsepnya yang abstrak, khususnya pada materi usaha dan energi. Oleh karena itu, diperlukan media pembelajaran inovatif untuk meningkatkan pemahaman dan keterlibatan siswa. Penelitian ini bertujuan mengembangkan website pembelajaran berbasis permainan edukasi menggunakan RPG Maker MZ yang dirancang dengan pendekatan Game-Based Learning (GBL) untuk kelas X SMA. Metode penelitian yang digunakan adalah Research and Development (R&D) dengan model Multimedia Development Life Cycle (MDLC), mencakup tahap concept, design, material collecting, assembly, testing, dan distribution. Hasil penelitian menunjukkan bahwa media yang dikembangkan mendapatkan penilaian sangat layak dari ahli materi, ahli pembelajaran, dan ahli media. Selain itu, hasil uji coba terhadap siswa menunjukkan bahwa penggunaan media ini mampu meningkatkan motivasi belajar, minat, serta pemahaman konsep siswa secara signifikan. Dengan demikian, website pembelajaran berbasis RPG Maker MZ merupakan alternatif media pembelajaran yang efektif dalam meningkatkan pemahaman siswa terhadap materi fisika, khususnya usaha dan energi.

Literasi Sains Modern Dalam Isu Sosiosaintifik Berbasis Konteks Lokal: Sebuah Tinjauan Pustaka Sistematis Untuk Pembelajaran Interdisipliner Fisika Dan Matematika

2025-10-20T06:18:11+00:00

Twenty-first-century science education necessitates a paradigm shift from mere conceptual mastery towards functional scientific literacy, defined as the ability to utilize scientific knowledge for decision-making on complex societal issues. However, physics instruction often remains decontextualized and theoretical, consequently failing to equip students with this crucial competence. This research aims to conduct a Systematic Literature Review (SLR) to map and synthesize theoretical frameworks concerning the integration of locally-contextualized Socioscientific Issues (SSI) to strengthen modern scientific literacy. Through searches in the Google Scholar and Scopus databases, applying strict inclusion and exclusion criteria, twenty-five relevant articles were thematically analyzed. The synthesis yielded three principal themes: (1) The fundamental role of SSI as a bridge between science concepts and ethical reasoning and decision-making; (2) The criticality of local context in enhancing the relevance, engagement, and meaningfulness of science learning; (3) The potential synergy between physics and mathematics disciplines in facilitating quantitative analysis and modeling of SSI. This review concludes that a physics learning approach integrating SSI, local context, and mathematical reasoning represents a promising framework for realizing the goals of modern scientific literacy in Indonesia. The implication of this study is the urgent need for the development of physics instructional models and materials that explicitly adopt this proposed framework.

Fabrikasi Sel Surya Berbasis Bahan Pemeka Organik Menggunakan Material TiO2 dan Pewarna Dari Ekstrak Bayam

2025-11-14T08:04:56+00:00

Spinach leaf extract has been used as a photosensitizer in titanium dioxide (TiO₂) nanoparticles for the fabrication of dye-sensitized solar cells (DSSCs). The TiO₂ nanoparticles were synthesized via the co-precipitation method by mixing TiCl₃ with distilled water and NH₄OH. The mixture was stirred until it turned white, indicating precipitate formation. The absorbance properties of both the TiO₂ nanoparticle powder and the natural dye were analyzed using UV-Vis spectrophotometry. DSSCs were fabricated by coating TiO₂ onto indium tin oxide (ITO)-coated glass substrates using the doctor blade method, followed by immersion in the dye solution. Three DSSC devices were prepared with varying dye soaking durations: 2 hours, 4 hours, and 6 hours. The current–voltage (I–V) characteristics of each device were measured and plotted to determine their respective power conversion efficiencies. The obtained efficiencies were 0.0444% for the 2-hour soaking time, 0.0570% for 4 hours, and 0.0589% for 6 hours.

Analisis kebutuhan pengembangan panduan praktikum pada matakuliah gelombang berbasis pendekatan STEM

2025-11-14T07:54:05+00:00

The purpose of this paper is to analyze the need for the development of wave practicum guidelines in the Physics Education study program at the University of Bengkulu. This study uses a direct survey method, interview techniques, and the distribution of online form-based questionnaires to students, practicum assistants, laboratory assistants, and lecturers. Based on the data obtained and analyzed, the results show that the Physics Education study program has not carried out practicums in the laboratory directly for a long time after the post-covid era, and the existing practicum guidelines have not been updated since the last curriculum change, while laboratory equipment has been updated, and students find it difficult to receive material due to the lack of guidance for direct wave practicums both in groups and independently, this is because students only do wave practicums through Phet Simulation, resulting in a lack of direct experience with the laboratory, and also assembling tools. Based on the results of the analysis, it was concluded that the need for the development of wave practicum guidelines based on the STEM approach to meet the practical needs of students in higher education.