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All Journal Charm Sains : Jurnal Pendidikan Fisika Jurnal FisTa : Fisika dan Terapannya
Heindrich Taunaumang
Departement of Physics, Faculty of Mathematics and Natural Sciences, Manado State University, Tondano
Astronomy Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Penerapan Model Learning Cycle 5E Dalam Meningkatkan Keterampilan Proses Sains dan Hasil Belajar Siswa Titdoy, Afni; Tumangkeng, Jeane Verra; Silangen, Patricia Mardiana; Taunaumang, Heindrich; Makahinda, Tineke; Sompotan, Armstrong
Charm Sains: Jurnal Pendidikan Fisika Vol 7 No 1 (2026): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

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This research aims to determine the enhancement of students' science process skills (KPS) and learning outcomes in class XI at SMA Negeri 2 Tondano using the learning cycle type 5E model on the static fluid topic. This study is a Classroom Action Research (CAR) conducted in two cycles, each involving planning, action, observation, and reflection phases. The research subjects were 18 students from the Physics Interest class (XI Peminatan Fisika). The results showed a significant increase in both learning outcomes and science process skills. In cycle I, the average N-Gain for learning outcomes was 0.50 (moderate category), and it increased to 0.63 (moderate category) in cycle II, with the percentage of students achieving mastery learning reaching 94.44%. The average score for science process skills also rose substantially from 67.94 (sufficient category) in cycle I to 89.52 (very good category) in cycle II. The discussion demonstrates that the five stages of the learning cycle 5E model directly facilitate the construction of conceptual understanding and the development of students' scientific inquiry abilities. It can be concluded that the application of the learning cycle 5E model is highly effective in improving students' science process skills and learning outcomes in physics.
Karakterisasi Gugus Fungsi Arang Aktif Sabut Kelapa dengan Metode Pirolisis Talubun, Anthoni; Taunaumang, Heindrich; Rampengan, Alfrie Musa
Jurnal FisTa Fisika dan Terapannya Vol 7 No 1 (2026): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

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Activated charcoal can be produced from carbon-containing materials or from activated charcoal to get a wider surface area. Coconut coir is a part of coconut waste that is rarely forgiven. The researcher discussed the functional groups of activated charcoal from coconut coir with 10 ml of KOH activator. The purpose of this study was to determine the active charcoal content contained in coconut coir. The method used is the pyrolysis method in which combustion occurs in a furnace without oxygen at a temperature of 4000C. The analysis carried out by the researchers included a wave number spectrum analysis using the FTIR tool for coconut coir activated carbon. The identification results using the FTIR spectrophotometer showed that the activated charcoal in this study contained functional groups O-H, -O-, C-O, C=C, C-H
Karakterisasi Struktur Karbon Aktif Sabut Kelapa Sebagai Material Elektroda Superkapasitor Tasik, Vonni; Taunaumang, Heindrich; Tumimomor, Farly
Jurnal FisTa Fisika dan Terapannya Vol 7 No 1 (2026): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

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In today's modern life, electrical energy has become a primary need that cannot be avoided. Supercapacitors are a new breakthrough in the field of energy storage, where supercapacitors have a higher power density than batteries and have a higher energy density compared to conventional capacitors. This study characterized the structure of coconut fiber activated carbon activated with NaOH with varying concentrations of 3 M and 5 M. Testing on X-ray Diffraction (XRD) showed the absence of sharp peaks which confirms that this activated carbon is amorphous, meaning carbon that is not arranged in a perfect crystal. Meanwhile, the FTIR test of 3M Coconut Fiber Activated Carbon confirmed many oxygen groups (C-O 1044 cm-1 1044 cm-1, strong aromatic peak (1567 cm⁻¹), more polar surface, and higher concentration of 5M deoxygenation (C–O weakens/disappears), more graphitized aromatic structure, higher porosity (CO₂ adsorbed ↑), more nonpolar surface. Meanwhile, coconut fiber charcoal (without activation) confirmed the main chemical components of coconut fiber, especially dominant cellulose, lignin and hemicellulose.
Co-Authors Alfrie Musa Rampengan Armstrong F. Sompotan Farly Reynol Tumimomor Jeane V. Tumangkeng Patricia Mardiana Silangen Talubun, Anthoni Tasik, Vonni Tineke Makahinda Titdoy, Afni