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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) DWIJA CENDEKIA: Jurnal Riset Pedagogik JKPK (Jurnal Kimia dan Pendidikan Kimia) Fullerene Journal of Chemistry SOSCIED Jurnal Fisika Indonesia Frontiers Sciening : Science Learning Journal Charm Sains : Jurnal Pendidikan Fisika Konstanta: Jurnal Matematika dan Ilmu Pengetahuan Alam Jurnal Arjuna : Publikasi Ilmu Pendidikan, Bahasa dan Matematika Jurnal FisTa : Fisika dan Terapannya Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Alfrie Musa Rampengan
Universitas Negeri Manado
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Penggunaan Aplikasi Tinkercad dalam Pembelajaran Elektronika Dasar 2: Persepsi dan Pemahaman Konseptual Mahasiswa Pawarangan, Ishak; Rampengan, Alfrie Musa; Tumangkeng, Jeane V.; Silka, Silka
SCIENING : Science Learning Journal Vol. 5 No. 1: Juni 2024
Publisher : Jurusan Pendidikan IPA FMIPAK Universitas Negeri Manado

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Abstract

Elektronika Dasar 2 adalah salah satu mata kuliah wajib jurusan Fisika, Universitas Negeri Manado dan umumnya juga dibeberapa perguruan tinggi lain. Penelitian ini menyelidiki penggunaan aplikasi Tinkercad dalam mata kuliah Elektronika Dasar 2 dan dampaknya terhadap persepsi serta pemahaman mahasiswa. Jenis penelitian yang digunakan yaitu kajian deskriptif dengan dengan metode survei terhadap mahasiswa Jurusan Fisika, Universitas Negeri Manado yang mengambil mata kuliah Elektronika Dasar 2 sebanyak 20 orang. Data dikumpulkan melalui kuesioner berbasis google form dan tanya untuk mendapatkan pemahaman yang lebih mendalam mengenai pengalaman belajar menggunakan Tinkercad dan pemahaman mahasiswa terkait materi ajar. Hasil penelitian menunjukkan bahwa penggunaan Tinkercad memiliki pengaruh positif terhadap persepsi, memberikan media pembelajaran yang lebih visual dan interaktif dan membantu mahasiswa memahami konsep-konsep elektronika secara lebih baik. Meskipun begitu, penelitian ini juga mengidentifikasi beberapa tantangan yang dihadapi oleh mahasiswa, seperti masalah aksesibilitas dan kebutuhan akan panduan penggunaan aplikasi. Mahasiswa memberikan persepsi positif sekaligus telah dapat meningkatkan pemahaman konseptual terkait penggunaan aplikasi Tinkercad dalam pembelajaran Elektronika Dasar 2.
Comparative Analysis Of Solar Panel Output Power Using Reflected Light And Direct Sunlight Byancha Priscilla; Alfrie M. Rampengan; Arik S. Nugroho
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 4 (2023): Desember : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v1i4.1380

Abstract

This study pertains to the utilization of solar energy as a sustainable energy source, which exhibits considerable promise in Indonesia. The average daily solar radiation intensity in Indonesia is estimated to be approximately 4.8 kWh/m2. Nevertheless, the practical implementation of the Solar Power Plant (PLTS) presents several problems, including the need to improve the output power efficiency of the solar panels. This aspect offers the potential for significant enhancement. This study aimed to evaluate the performance of solar modules when equipped with reflectors, through a comparative analysis. In order to enhance the output power of the solar module, it is vital to augment the solar radiation received by this module. Based on the data acquired, it can be observed that the utilization of reflectors within the time frame of 11.00-12.00 WIT yields the maximum efficiency value.
Pengaruh Suhu Proses Karbonasi Terhadap Konduktivitas Listrik Arang Bambu Sebagai Elektroda Superkapasitor Messy Shania Pongajow; Heinrich Taunaumang; Farly R. Tumimomor; Alfrie M. Rampengan
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v2i1.1880

Abstract

. Electrical energy is a primary need for every human being. Supercapacitors are sophisticated electrical energy storage devices that combine the advantages of conventional batteries and capacitors so that they have the ability to store energy better. The use of electrode materials is one of the factors that affect the effectiveness of supercapacitors, electrode materials can be made from polymeric materials, metal oxides, and porous materials such as activated carbon. Activated carbon is made through two main stages, namely the carbonization and activation stages. Bamboo charcoal is a solid product that uses bamboo raw materials through a carbonization process under high temperatures (high temperature charcoal). This research is a research using experimental method. From the research results, carbonized bamboo charcoal at temperatures of 300˚C, 350˚C, 400˚C, 450˚C and 500˚C has a higher electrical conductivity value as the carbonization temperature increases. So it can be concluded that the temperature in the carbonization process affects the electrical conductivity of bamboo charcoal.
Thematic Eksplorative Democratic Learning: Suatu Eksplorasi Konsep Energi di Pulau Para Kabupaten Kepulauan Sangihe Fabian Tamara; Patricia M. Silangen; Alfrie M. Rampengan; Jeane V. Tumangkeng
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v2i4.74

Abstract

This research aims to describe the results of exploratory learning about objects in the form of energy concepts on Para Island. The main research activities are exploring objects (Sun, ocean currents, sea waves, and wind), as well as scientific concepts and processes using the Thematic Exploration Learning in Democratic Interaction (HOTL-DI) type A model. Research at Tatoereng State Middle School Classes VII-VIII from June to July 2021. Exploration activities were carried out in three stages. The first stage is material exploration (objects, concepts, and scientific processes), carried out by the research team facilitated by the Pamong Teacher. The second stage is learning activities regarding energy concepts by class VII-VIII students. The results of the phase II assessment are used as a reference for going directly to the field to conduct exploration. Phase III exploration activities for target groups facilitated by mentors and researchers. The research results showed that at the beginning of the activity, all students experienced difficulties, but later, they developed the initiative to carry out their exploration. The exploration results show the development of the concept in the exploration step. Most students experienced improvement in identifying concepts and constructing a comprehensive network of energy concepts.
Penggunaan Aplikasi Tinkercad dalam Pembelajaran Elektronika Dasar 2: Persepsi dan Pemahaman Konseptual Mahasiswa Pawarangan, Ishak; Rampengan, Alfrie Musa; Tumangkeng, Jeane V.; Silka, Silka
SCIENING : Science Learning Journal Vol. 5 No. 1: Juni 2024
Publisher : Jurusan Pendidikan IPA FMIPAK Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Elektronika Dasar 2 adalah salah satu mata kuliah wajib jurusan Fisika Universitas Negeri Manado dan umumnya juga dibeberapa perguruan tinggi lain Penelitian ini menyelidiki penggunaan aplikasi Tinkercad dalam mata kuliah Elektronika Dasar 2 dan dampaknya terhadap persepsi serta pemahaman mahasiswa Jenis penelitian yang digunakan yaitu kajian deskriptif dengan dengan metode survei terhadap mahasiswa Jurusan Fisika Universitas Negeri Manado yang mengambil mata kuliah Elektronika Dasar 2 sebanyak 20 orang Data dikumpulkan melalui kuesioner berbasis google form< em> dan tanya untuk mendapatkan pemahaman yang lebih mendalam mengenai pengalaman belajar menggunakan Tinkercad dan pemahaman mahasiswa terkait materi ajar Hasil penelitian menunjukkan bahwa penggunaan Tinkercad memiliki pengaruh positif terhadap persepsi memberikan media pembelajaran yang lebih visual dan interaktif dan membantu mahasiswa memahami konsep konsep elektronika secara lebih baik Meskipun begitu penelitian ini juga mengidentifikasi beberapa tantangan yang dihadapi oleh mahasiswa seperti masalah aksesibilitas dan kebutuhan akan panduan penggunaan aplikasi Mahasiswa memberikan persepsi positif sekaligus telah dapat meningkatkan pemahaman konseptual terkait penggunaan aplikasi Tinkercad dalam pembelajaran Elektronika Dasar 2 < p>
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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Abstract

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
Effectiveness of Project Based Learning Model in Learning Evaluation Course in Physics Education Study Programme Parno Sumanro Mahulae; Tineke Makahinda; Patricia Mardiana Silangen; Alfrie Musa Rampengan
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.5891

Abstract

The use of project-based learning model in learning can improve the quality of learning and students' learning outcomes. The purpose of this study was to determine how effective the project-based learning model is on learning outcomes.  The method used in this research is quasi-experiment with one group pretest-posttest design. This research instrument is in the form of a student learning outcomes test in the form of descriptions, from the test results the n-gain test is carried out. The results showed an increase in student learning outcomes with an average pretest score of 45.73 and an average posttest score of 82.08. The result of the n-gain analysis is 0.57 which shows a moderate effectiveness category. Therefore, learning evaluation courses using project-based learning models is effective on student learning outcomes
Pemanfaatan Karbon Aktif dari Limbah Kulit Pisang Kepok (Musa Paradisiaca L) sebagai Elektroda Superkapasitor Khariezmathika Ester Kapantow; Alfrie Musa Rampengan; Farly Reynol Tumimomor; Heindrich Taunaumang; Sixtus Iwan Umboh
Jurnal FisTa Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v6i2.473

Abstract

In recent years, attention to renewable energy has increased, especially in electrical energy. One of the emerging technologies in supporting electrical energy storage is supercapacitors. This study aims to determine the effect of variations in the concentration of KOH solution on the current and voltage characteristics produced by supercapacitor electrodes made from activated carbon from kepok banana peel waste (Musa Paradisiaca L). By using dehydration method 80°C, carbonization at 400°C, chemical activation with 5M, 6M, and 7M KOH solution, and physical activation at 750°C. The results showed that the concentration of KOH activator from 5M, 6M, to 7M increased the electric voltage to 0.641 V, 1.078 V, and 1.448 V and electric current to 10.3 mA, 11.6 mA, and 28.5 mA, respectively. However, the density and conductivity values showed different patterns, with density values of 1.2446 A/
Analisis Spasial dan Temporal Temperatur Permukaan Gunung Api Ruang Menggunakan Citra Satelit Landsat 8 Tirs Believe Vidnel Rampi; Cyrke Adfie Netty Bujung; Alfrie Musa Rampengan
Jurnal FisTa Fisika dan Terapannya Vol 7 No 1 (2026): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v7i1.662

Abstract

Indonesia is the country with the most mountains. The number of volcanoes in Indonesia is around 500. Of these, 129 are active volcanoes. This study aims to map the distribution of temperature and determine the direction of surface heat flow of Ruang Volcano before an eruption. This research was conducted by temporally analyzing the temperature distribution in Ruang Volcano to predict the direction of geological structure openings in the area using remote sensing methods. The analysis was carried out temporally using thermal infrared band 10 image data to determine the direction of heat flow according to the resulting distribution map. The analysis results show that the surface temperature distribution map of Ruang Volcano before the eruptions in 2015, 2019, and 2024 shows a similar pattern. Based on the surface temperature distribution map of Ruang Volcano, the direction of flow before the eruption comes from the northeast.
Effect of Phosphoric Acid (H3PO4) Activation on the Preparation of Activated Carbon from Gymnostoma Rumphianum Wood Soenandar Milian Tompunu Tengker; Pamela Lumingas; Jeanne Maria Tuerah; Miftahul Jannah; Alfrie Musa Rampengan
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 10, No 2 (2025): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v10i2.107623

Abstract

The utilization of Roya wood branches (RWB) as raw material for activated charcoal production has not yet been optimized in North Sulawesi, specifically in Wulauan Village, North Tondano District. This study aims to present the results of the analysis of the physical and chemical properties, X-Ray Diffraction (XRD), and Transmission Electron Microscope (TEM) of RWB-based activated charcoal. The production of activated charcoal was conducted in three stages: sample preparation, pyrolysis of RWB at a temperature of 365°C for approximately 3 hours, and activation of RWB charcoal using phosphoric acid (H₃PO₄) at concentrations of 1%, 2%, and 3% for 24 hours. The analysis of physical and chemical properties of both non-activated and H₃PO₄-activated RWB activated charcoal showed that the best quality was obtained at a 3% activator concentration, with a moisture content of 0.1683%, ash content of 2.3321%, volatile matter content (VMC) of 0.9429%, fixed carbon (FC) content of 96.7250%, and iodine adsorption capacity (IAC) of 10,535 mg/g, all of which meet the SNI 06-3037-1995 for activated charcoal. XRD analysis showed that non-activated RWB charcoal had three broad diffraction peaks in the ranges of 9–14°, 20–25°, and 35–50°, along with one sharp peak in the range of 25–30°. After activation with H₃PO₄, only three broad diffraction peaks were observed at 9–14°, 20–25°, and 35–50° for all three H₃PO₄ concentration variations.TEM analysis indicated that non-activated RWB charcoal had particle sizes ranging from 20–33 nm, while after activation with 1% H₃PO₄, the particle sizes ranged from 41–51 nm..
Co-Authors Angelika Kristi Nilahi Arik S. Nugroho Arik S. Nugroho Armando Ariakta Aloanis Awal Mulia Rejeki Tumanggor Believe Vidnel Rampi Byancha Priscilla Byancha Priscilla Christophil Medellu Cosmas Poluakan Cyrke A N Bujung Dewi, Adiadna Chitra Donny Royke Wenas Edi Suharyadi Erixio Mewoh Fabian Tamara Farly Reynol Tumimomor Frindi L Morontong Geraldi Saputera Kapoh Givraldi Kumentas Heindrich Taunaumang Heindrich Taunaumang Heindrich Taunaumang Heinrich Taunaumang Heru, Christine I Wayan Rikiawan Ishak Pawarangan Iwan Sixtus Umboh Jeane V. Tumangkeng Jeanne Maria Tuerah Jeferson Polii Jeilen Gabriela Nikita Nusa Jonathan J. Wuisan Jutisya Putrih Senaen Khariezmathika Ester Kapantow Kimbal, Ariel Javi Kristanto Gunawan Kumonong Lahope, Kenny Setiawan Lauri Leslie Mendame Lolowang , Jimmy Lombo, Riris Liliana Lorensia Kainde Mahulae, Parno Sumanro Marianus Ma’arif - Messy Shania Pongajow Miftahul Jannah Muhammad Zulkifli Nicky Kurnia Tumalun Paembonan, Tiara Lestari Pamela Lumingas Parno Sumanro Mahulae Patricia Mardiana Silangen Poli, Delivia Natalia Rende, Jeane Cornelda Rizqie Emeninta Putri Rolles Nixon Palilingan Rondonuwu, Anneke T Salti, Oktavia Indri Satoshi Iwata Satyano W Mongan Seveny Nuzully silka Silka Silka Sindim, Excelcis Deo Christianto Stefan Sindim Takeshi Kato Talubun, Anthoni Tamara, Gersom Jeremia Tengker, Soenandar Millian Tompunu Theresje Mandang Tineke Makahinda Treesje K. Londa Uada, Putri Angel Varisky Abraham Dumanaw Vicky Mawuntu Vincensius Jamlean Vistarani Arini Tiwow Watulingas, Aldo Nandito