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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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Analisis Viskositas Lube Oil Di Turbin Unit 2 PLTP Lahendong Rizqie Emeninta Putri; Jeferson Polii; Alfrie Musa Rampengan
Jurnal FisTa : Fisika dan Terapannya Vol 5 No 1 (2024): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v5i1.344

Abstract

Viscosity, also known as fluid viscosity, is a fluid characteristic that provides shear stress resistance by the fluid. Viscosity describes a fluid's resistance to a flow so that it can be used to measure fluid friction. The viscosity of a lubricant is affected by changes in temperature and pressure. The pressure increases if the value of the viscosity increases, the higher the pressure, the more significant the fluid's viscosity. This study aims to find out the viscosity value of lube oil in turbine unit 2 of the Lahendong PLTP. Based on the results of the calculation, the result was obtained from the viscosity value of lube oil in turbine unit 2 of 373.61 kg/ms with a pressure of 30591.486 kg/m2, and the viscosity value increased by 386.06 kg/ms due to an increase in pressure of 31611.2 kg/m2.
Analisis Keberadaan Manifestasi Panas Bumi Terhadap Keseimbangan Lingkungan Sekitar Desa Talawaan Bantik Angelika Kristi Nilahi; Cyrke Adfie Netty Bujung; Jeilen Gabriela Nikita Nusa; Alfrie Musa Rampengan
Jurnal FisTa : Fisika dan Terapannya Vol 5 No 2 (2024): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v5i2.356

Abstract

Energy is very important for humans, apart from that the environment also has the same important role, in other words energy and the environment are inseparably linked. This research aims to see the differences in the chemical content and physical properties of geothermal manifestation water and residents’ well water, as well as to find outh whether the manifestation water content affects local residents’ well water. The research samples consisted of hot springs and local well water, where the physical and chemical properties observed were: Temperature, pH, DHL, CL, Fe, H2S,SO4. The results of measurement and sample testing obtained were then analyzed descriptively. The result obtained from this research are that for the physical properties and chemical content of Cl, Fe, H2S, and SO4 there is not much difference in the content analysis results, while for the DHL, Temperature and pH values there are quite large differences, but still is below the standard value for clen water quality.
KARAKTERISTIK KARBON AKTIF BERBASIS LIMBAH PELEPAH KELAPA DENGAN VARIASI KONSENTRASI KOH SEBAGAI MATERIAL ELEKTRODA SUPERKAPASITOR Kimbal, Ariel Javi; Taunaumang, Heindrich; Tumimomor, Farly R.; Rampengan, Alfrie M.; Pawarangan, Ishak
SOSCIED Vol 8 No 1 (2025): SOSCIED - Juli 2025
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v8i1.913

Abstract

The current energy needs are increasing due to technological advances and the increasing number of technology users. So, to solve this problem, it is necessary to make major changes and energy renewal by using alternative energy. One of the utilization of alternative energy is energy storage devices such as supercapacitors. In this study, a test was carried out on the activation of coconut stem waste as a supercapacitor electrode with variations in KOH electrolyte, namely 6M, 7M, 8M which produced voltages of 1.254 V, 1.187 V, 1.105 V and produced currents of 87.2 mA, 46.52 mA, 25.38 mA respectively. Based on the results of the study, it showed a decrease in the concentration of electrolytes 6M, 7M, 8M. So it can be concluded that different electrolytes have a significant effect on the voltage and electric current values ​​produced by the supercapacitor electrodes.
PENGARUH PENDEKATAN JELAJAH ALAM SEKITAR (JAS) PADA MATERI GELOMBANG TRANSVERSAL TERHADAP HASIL BELAJAR PESERTA DIDIK Poli, Delivia Natalia; Marianus; Rampengan, Alfrie M.; Rende, Jeane C.; Tumimomor, Farly R.; Tiwow, Vistarani A.
Charm Sains: Jurnal Pendidikan Fisika Vol 6 No 3 (2025): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

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Abstract

The natural exploration approach (JAS) is used to utilize the surrounding natural environment as an object of knowledge. The purpose of this study was to determine the effect of the JAS approach on wave material on student learning outcomes. This study used a quasi-experimental method with a nonequivalent control group design. The results showed that the experimental class produced an average pretest score of 6.14, and after learning using the natural exploration approach (JAS), the average posttest score was 63.66. The control class had an average pretest score of 4.42 and an average posttest score of 40. A statistical analysis using an independent sample t-test obtained a significance value (2-tailed) of 0.001 <0.05, thus rejecting and accepting . Based on the results, it can be stated that the use of the natural exploration approach (JAS) has an effect on student learning outcomes.
PENGGUNAAN MODEL PROJECT BASED LEARNING DENGAN METODE PEER TUTORING DALAM PEMBELAJARAN HUKUM ARCHIMEDES Uada, Putri Angel; Poluakan, Cosmas; Rampengan, Alfrie M.; Taunaumang, Heindrich; Mandang , Theresje; Tumalun, Nicky K.
Charm Sains: Jurnal Pendidikan Fisika Vol 6 No 3 (2025): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

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Abstract

This article aims to determine the effect of using the project-based learning model with the peer tutoring method in teaching Archimedes' principle in physics. This research was conducted at SMA Negeri 1 Tombatu using a quantitative research design with a one-group pre-test post-test design. The use of the project-based learning model with the peer tutoring method enabled students to understand the material taught, based on student learning outcomes, namely the pre-test results showed that the average score of students was 35.83 and increased to 84 in the post-test results. Thus, it can be concluded that the use of the project-based learning model with the peer tutoring method has a significant effect on student learning outcomes in physics learning on Archimedes' principle.
IMPLEMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE TWO STAY TWO STRAY (TSTS) PADA MATERI SUHU DAN KALOR UNTUK MENINGKATKAN HASIL BELAJAR SISWA DI SMA NEGERI 2 TONDANO Lombo, Riris Liliana; Marianus; Rampengan, Alfrie Musa; Rende, Jeane Cornelda; Mahulae, Parno Sumanro
Charm Sains: Jurnal Pendidikan Fisika Vol 6 No 3 (2025): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

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Abstract

The Two Stay Two Stray (TSTS) cooperative learning model is an approach that focuses on active interaction between students through discussion activities and information exchange between groups. This study was conducted with the aim of determining the effect of the TSTS model on the learning outcomes of students at Tondano 2Public High School on the subject of temperature and heat. The method applied in this study was a quasi-experiment with a non-equivalent pretest-posttest control group design,involving two classes, namely the experimental class and the controlclass. In the experimental class, the pretest results showed an average of 34 and increased to 83.05 in the posttest, while the control class experienced an increase from an average of 33.52 to 73.81. Furthermore, a statistical analysis in the form of an independent t-test was conducted, which yielded a sig. value of 0.0002 (<0.05), indicating that there was a significant difference in learning outcomes between the two groups. The application of the TSTS cooperative learning model proved to be effective in improving learning outcomes because it encouraged students to be more active, responsible, and directly participate in learning activities. From these results, it can be concluded that the application of the TSTS cooperative learning model has a positive effect on improving student learning outcomes on the topic of temperature and heat.
KARAKTERISTIK I-V ELEKTRODA SUPERKAPASITOR BERBASIS KARBON AKTIF KULIT KACANG BATIK KAWANGKOAN Tamara, Gersom Jeremia; Polii, Jefferson; Tumimomor, Farly R.; Rampengan, Alfrie M; Mongan, Satyano W.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.834

Abstract

The energy crisis is one of the major problems facing the world today, especially electrical energy. Supercapacitors are an alternative solution as an electrical energy storage divais. In this study, batik kawangkoan peanut shell samples have been successfully modified into activated carbon as a supercapacitor electrode. The carbonization process is given a carbonization temperature treatment of 350oC, 400oC, 450oC, 500oC, 550oC which is activated using a 7 M KOH solution by heating in a furnace at 750oC to produce a voltage of 0.966 V, 1.273 V, respectively, 1.295 V, 1.325 V, 1.654 V and currents of 18.56 mA, 23.43 mA, 26.47 mA, 30.53 mA, 48.24 mA which shows that there is a change in the value of current and voltage in supercapacitors, and the best sample is in the sample with 550oC carbonization temperature treatment. Thus, it can be concluded that carbonization temperature has an influence on the current and voltage characteristics of supercapacitor electrodes.
PEMANFAATAN KARBON AKTIF ECENG GONDOK (EICHHORNIA CRASSIPES) SEBAGAI MATERIAL ELEKTRODA SUPERKAPASITOR DENGAN VARIASI KOSENTRASI ELEKTROLIT Na2SO4 Watulingas, Aldo Nandito; Rampengan, Alfrie M.; Tumimomor, Farly Reynol; Wenas, Donny R.; Nusa, Jeilen G. N
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.840

Abstract

The utilization of renewable energy has become a major focus in an effort to reduce dependence on fossil energy sources and reduce negative impacts on the environment, making it important to increase the use of clean and renewable energy. One of the biggest challenges in the application of renewable energy is efficient and sustainable energy storage. In this case, supercapacitors have proven to be a solution as an efficient and sustainable energy storage device. In this study, water hyacinth biomass material was tested as a supercapacitor electrode which was influenced by variations in Na2SO4 electrolyte, namely 1M, 2M, and 3 M, which produced voltages of 1.037 V, 1.404 V, and 1.647 V respectively and electric currents of 18.56 mA, 23.32 mA, and 32.34 mA. From the results of this study, it was found that the sample with an electrolyte concentration of Na2SO4 3 M had higher voltage and amperage values, which amounted to 1.654 V and 32.34 mA due to the greater number of Na+ and SO42- ions in the electrolyte. So it can be concluded that the variation of Na2SO4 electrolyte concentration of 1 M, 2 M, and 3 M results in an increase in the value of voltage and electric current produced by supercapacitors.
MODEL PEMBELAJARAN INKUIRI TERBIMBING MENGGUNAKAN PENDEKATAN KONTEKSTUAL DALAM PEMBELAJARAN ENERGI MEKANIK UNTUK MENINGKATKAN HASIL BELAJAR SISWA DI SMA ADVENT TANAH PUTIH Heru, Christine; Londa, Treesje K; Rampengan, Alfrie M.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.850

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar siswa dengan Model pembelajaran inkuiri terbimbing menggunakan pendekatan kontekstual dalam pembelajaran Energi mekanik. Penelitian ini menggunakan desain penelitian Pre-experimental Design dengan rancangan One-Group Pretest-Postest. Teknik sampling menggunakan non probability sampling. Sampel dalam penelitian ini adalah kelas X dengan jumlah 22 siswa sebagai kelas eksperimen. Data diperoleh dengan observasi, dokumentasi, dan tes. Analisis data yang digunakan diperoleh dari nilai pretest dan postest pada tes hasil belajar siswa. Selanjutnya dianalisis dengan uji normalitas dan hipotesis (uji-t). Perolehan nilai rata-rata untuk pretest 38,96 dan posttest 75,00. Dapat disimpulkan bahwa dengan menerapkan model pembelajaran inkuiri terbimbing menggunakan pendekatan kontekstual dapat meningkatkan hasil belajar siswa. Model Pembelajaran Inkuiri Terbimbing Menggunakan Pendekatan Kontekstual dapat diterapkan dalam pembelajaran fisika sebagai alternatif dikarenakan dapat meningkatkan hasil belajar siswa mnjadi lebih baik
PENERAPAN METODE DEMONSTRASI BERBANTUAN MEDIA PRESENTASI DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA TOPIK FLUIDA STATIS DI SMA NEGERI 1 TOMBATU Dewi, Adiadna Chitra; Silangen, Patricia M; Rampengan, Alfrie M.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.856

Abstract

Tujuan penelitian ini adalah untuk mengetahui peningkatan hasil belajar siswa pada topik fluida statis dengan penerapan metode demonstrasi berbantuan media presentasi di SMA Negeri 1 Tombatu. Jenis penelitian ini adalah penelitian tindakan kelas (PTK) dengan Subjek siswa kelas XI IPA 1 SMA Negeri 1 Tombatu. Teknik pengambilan data adalah tes pada setiap siklus. Hasil yang diperoleh adalah terjadi peningkatan ketuntasan siswa siklus I sebesar 73,1% meningkat pada siklus II menjadi 96,15% dengan persentase penilaian kognitif, afektif dan psikomotorik pada masing-masing siklus yaitu siklus I 76,1%,77,1%,72,1% sedangkan pada siklus II meningkat menjadi 94,6%,87,2%,83,2%. Jadi dapat disimpulkan bahwa bahwa penerapan metode demonstrasi berbantuan media presentasi dapat meningkatkan hasil belajar siswa pada topik Fluida Statis di SMA Negeri 1 Tombatu.
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