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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Journal of Applied Geospatial Information JIPF (Jurnal Ilmu Pendidikan Fisika) JRST (Jurnal Riset Sains dan Teknologi) JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Jurnal Pendidikan Fisika dan Teknologi Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat TECHNO-SOCIO EKONOMIKA Community Development Journal: Jurnal Pengabdian Masyarakat ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Lensa: Jurnal Kependidikan Fisika Jurnal Pengabdian Masyarakat Bangsa Charm Sains : Jurnal Pendidikan Fisika Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics
Goldbert Harmuda Duva Sinaga
Universitas HKBP Nommensen
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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TSS (Total Suspended Soil) Analysis Using GEE (Google Earth Engine) Cloud Technology In Sibolga Waters Mardame Pangihutan Sinaga; Jono Barita Sianipar; Ady Frenly Simanullang; Goldberd Harmuda Duva Sinaga; Mila Susanty Sianipar
Journal of Applied Geospatial Information Vol 7 No 2 (2023): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v7i2.5856

Abstract

The TSS research using GEE Cloud Technology in Sibolga Waters was carried out from February to April 2021, Mey to July 2021, August to October 2021, and October to December 2021. The analysis was carried out using the Sentinel-2 Satellite. TSS results showed that the highest amount was 60-120 mg/liter and the lowest was 0-60 mg/l. The content of TSS is spread evenly around the edge of the Sibolga coast to the Middle of Sibolga Waters and has passed the quality standard limit according to the Minister of Environment of the Republic of Indonesia which means the Sibolga Water area is polluted and improper for drinking water as well as for fish cultivation. The result has been seasonal influence can determine the direction of the TSS distribution pattern, both tidal factors and weather conditions such as rain and dry season. The side effect on the TSS distribution pattern in Sibolga Waters causes the TSS value at high tide to be higher than at low tide. Sentinel-2 TOA Reflectance Data imagery can be used to map the TSS distribution pattern in the Sibolga Waters area.
Investigating the Relationship between Climate Variables and Solar Activity: A Regression Analysis Approach Budiman Nasution; Goldberd Harmuda Duva Sinaga; Arip Nurahman; Ruben Cornelius Siagian
JRST (Jurnal Riset Sains dan Teknologi) Volume 7 No. 2 September 2023: JRST
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/jrst.v7i2.16922

Abstract

This study employs regression analysis to investigate the relationships between carbon dioxide levels, sunspot occurrences, and global temperatures, encompassing both land and sea. By uncovering these connections, the study contributes to our understanding of climate change and solar phenomena interactions. The primary objective is to reveal the intricate associations between these elements, potentially influencing climate change and solar activity. The study's outcomes have significant implications for climate change research and solar activity monitoring. The positive correlation between carbon dioxide concentration and ocean temperatures emphasizes the impact of atmospheric carbon dioxide on sea temperature fluctuations. Conversely, the inverse correlation between sunspot numbers and land/global temperatures suggests solar activity's potential role in shaping Earth's temperature oscillations. This research introduces novelty by concurrently investigating the interconnectedness of these factors. The study establishes substantial connections between carbon dioxide concentration, sunspot numbers, and global temperatures. While the models shed light on some variability, the complexity of climate change and solar activity calls for further exploration of additional factors. This underscores the need to consider multiple variables for a comprehensive understanding. Further research is recommended to enhance the precision of these models.
The Effect of Practicum Tools with Differentiated Learning Strategies on Student Learning Outcomes Goldberd H D Sinaga; Mariana Br Surbakti; Morianus Gowasa; Juliper Nainggolan; Hebron Pardede; Parlindungan Sitorus
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 9 No 2 (2023): July-December
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v9i2.5405

Abstract

This study aims to determine the effect of using practicum tools with diferentiated learning strategies on student learning outcomes. The research method used is quasi-experimental design. The population in this study was all of class X MIA, totaling 212 students, of SMA Negeri 8 Medan. The research sampling technique is purposive sampling technique. Non-equivalent control group design is the type of the research design. The sample in the study consisted of an experimental class, namely class X MIA 6, and a control class, namely class X MIA 5. The experimental class was treated with differentiated learning strategies, while the control class was treated with conventional learning. The research instruments used were multiple-choice questions and student observation sheets. The average score of the posttest for the experimental class was 76.28 with a standard deviation of 6.9, and that of the control class was 72.08 with a standard deviation of 6.7. The pretest and posttest data obtained have been analyzed and met the prerequisites for testing the hypothesis, namely, the data is normally distributed and is homogeneous. The result of the right-tailed t-test on the hypothesis obtained the value of tcount > ttable, namely 2.608 > 2.002 whit = 0.05. Based on the testing criteria, the accepted hypothesis is H, which means that there is an effect of the treatment that is the use of practicum tool with different learning strategies on student learning outcomes at SMA Negeri 8 Medan for the 2022/2023 academic year. The result of the simple linear regression equation is Y = 65.9 + 0.34X.
Exploring Celestial Object Characteristics: An In-depth Analysis of Quasars, Stars, and White Dwarfs Using the Sloan Digital Sky Survey (SDSS) Dataset Siagian, Ruben Cornelius; Nurahman, Arip; Sinaga, Goldberd Harmuda Duva; Ariefka, Reza; Pribadi, Pandu
TIME in Physics Vol. 2 No. 1 (2024): March
Publisher : Universitas Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/timeinphys.2024.v2i1p1-16

Abstract

This research utilizes the Sloan Digital Sky Survey (SDSS) dataset, examining 12,884 observations to explore quasars, stars, and white dwarf objects. Magnitude data and coordinates across five filter bands are analyzed, revealing unique features through statistical methods. The identification of 77,429 quasars with 15 dimensions enhances the dataset. Thorough analyses of stellar and white dwarf classes, coupled with visualization techniques, unveil variable relationships. Residual validation and Gaussian kernel density plots confirm significant class differences. Non-linear regression and a normal distribution mixture model depict complex variable relationships. A parallel coordinates plot aids in interpreting data patterns, while predictive modeling via regression exposes meaningful coefficients. Logistic regression effectively classifies astronomical objects in the SDSS training data. This research contributes to understanding celestial object characteristics, offering valuable insights for astronomers and astrophysicists in analyzing large-scale astronomical datasets.
Hawking Temperature Modification and the Physical Dynamics of Black Holes: A Study of the Influence of Internal and Cosmological Variables Sahroni, Taufik Roni; Sinaga, Goldberd Harmuda Duva; Jaya, Pratama; Purwanto, Romdhon; Muhlis, Dasep; Siagian, Ruben Cornelius
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 9, No 2 (2024): May 2024
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v9i2.4647

Abstract

The main objective of the study is to develop a model that modifies the traditional Hawking temperature by considering the influence of internal variables such as radius, mass, electric charge, angular momentum, and cosmological constant. The research method involves mathematical analysis and computational modeling based on the modified Hawking temperature equation. The results show that the modified Hawking temperature produces non-linear corrections that show the interaction between black holes and the quantum structure of spacetime. graphical representations visualize the variation of Hawking temperature with changes in area, electric charge, angular momentum, and cosmological parameters. The implications of the research extend to the understanding of the thermal properties of black holes in the context of gravitational and quantum theories. The research identifies gaps in the knowledge of the effects of cosmological parameters on black hole thermodynamics and introduces Hawking temperature modifications that have not been mapped in detail before. The study concludes that the Hawking temperature modification provides a strong foundation for further research in black hole physics, particularly in the effect of physical and cosmological parameters on the thermal properties of black holes.
SOSIALISASI PENGGUNAAN KOMPUTASI DI MATA PELAJARAN FISIKA DAN MATEMATIKA DENGAN PENDEKATAN PRAKTIK Sinaga, Goldberd Harmuda Duva; Sitinjak, Erni Kusrini
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 (2023): Volume 4 Nomor 6 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i6.22776

Abstract

Pendidikan merupakan salah satu aspek penting untuk mewujudkan dan mengarahkan manusia untuk berfikir kritis dan idealis. Tuntutan global menuntut dunia pendidikan untuk senantiasa menyesuaikan perkembangan teknologi dengan upaya peningkatan mutu pendidikan. Secara khusus perlu adanya penyesuaian dunia pendidikan, Dalam kegiatan pengabdian Masyarakat ditemukan bahwa guru masih belum mengoptimalkan penggunaan komputasi dalam pengajaran mata pelajaran Fisika dan Matematka sehingga perlu diadakan sosialisasi dengan menggunakan metode pendekatan praktik atau simulasi dan pelatihan secara langsung dengan menggunakan microsoft excel dan buku ajar yang akan dihibahkan ke sekolah. Pendekatan praktik/simulasi dan pelatihan yang dilakukan kepada guru selama 2 hari dengan menggunakan buku ajar karangan tim pengabdian kepada masyatakat. Metode yang dilakukan di PkM ini menghasilkan peningkatan pemahaman dari sebelumnya akan pentingnya pembelajaran mata pelajaran Fisika dan Matematika dengan menggunakan komputasi sehingga guru tertarik dan meminta kepada tim untuk ke depannya memberikan lagi porsi lebih di pelatihan selanjutnya sehingga pembendaharaan guru bertambah dan dapat diaplikasi langsung ke peserta didik.
Pengembangan e-Book Interaktif Fisika Berbasis Kearifan Lokal dengan Pendekatan Pembelajaran Inkuiri Pardede, Hebron; Sitorus, Parlindungan; Sinaga, Goldberd Harmuda Duva
Lensa: Jurnal Kependidikan Fisika Vol 12, No 2: December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v12i2.13789

Abstract

Pengintegrasian kearifan lokal dalam pembelajaran fisika merupakan upaya strategis untuk meningkatkan pemahaman konsep sekaligus memperkuat keterampilan berpikir kritis siswa. Penelitian ini bertujuan merancang dan mengembangkan e-book interaktif fisika berbasis kearifan lokal dengan pendekatan pembelajaran inkuiri. Metode penelitian menggunakan pendekatan Research and Development (R&D) dengan model ADDIE (Analyze, Design, Develop, Implement, Evaluate). Instrumen penelitian mencakup angket validasi ahli, tanggapan guru dan siswa, serta tes objektif untuk menilai pemahaman konsep fisika. Hasil validasi menunjukkan media ajar memiliki tingkat kelayakan yang sangat tinggi dari segi konstruk media (86%) dan kesesuaian isi materi (88%). Respon guru dan siswa juga sangat positif dengan capaian masing-masing 86%. Implementasi media ajar pada pembelajaran fisika materi fluida dinamis menunjukkan peningkatan signifikan pada pemahaman konsep siswa, dengan rata-rata nilai pretest sebesar 66 meningkat menjadi 94 pada posttest, serta ketuntasan klasikal mencapai 97,2%. E-book interaktif yang dikembangkan layak digunakan, efektif dalam meningkatkan hasil belajar fisika. Media ini dapat mendukung pembelajaran yang bermakna melalui integrasi konteks budaya lokal dan pendekatan inkuiri.
Coulomb Stress Analysis of the West Coast Sumatra Earthquake on Mount Imun and Mount Helatoba Sinaga, Goldberd Harmuda Duva; Nainggolan, Juliper; Pardede, Hebron
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 11 No 1 (2025): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v11i1.8102

Abstract

The island of Sumatra is a meeting area between the Indian Ocean plate in the South and the southwest edge of the Sunda Exposure, which is also the continental plate of Southeast Asia or the Eurasian Plate. The meeting of the plates makes the island of Sumatra an area prone to tectonic earthquakes, including Mount Imun and Helatoba which are located in the Tarutung basin. This study uses the Mohr-Coulomb model in the analysis of changes in coulomb stress. This modeling uses data from earthquakes that occurred on the West Coast of Sumatra which was then processed in coulomb 3.4 software. This modeling resulted in stress distribution in Imun and Helatoba. Coulomb stress changes until this time in Imun is 0.323 bar (2024) and coulomb stress change in Helatoba is 0.217 bar. The effect of the increase in coulomb stress (red lobe) originating from the earthquake on the west coast of Sumatra is triggering 2 tectonic earthquakes at the coordinates of Mount Imun in 2022 and triggering a tectonic earthquake at the coordinates of Helatoba in 2018.
Pengembangan e-Book Interaktif Fisika Berbasis Kearifan Lokal dengan Pendekatan Pembelajaran Inkuiri Pardede, Hebron; Sitorus, Parlindungan; Sinaga, Goldberd Harmuda Duva
Lensa: Jurnal Kependidikan Fisika Vol. 12 No. 2: December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v12i2.13789

Abstract

Pengintegrasian kearifan lokal dalam pembelajaran fisika merupakan upaya strategis untuk meningkatkan pemahaman konsep sekaligus memperkuat keterampilan berpikir kritis siswa. Penelitian ini bertujuan merancang dan mengembangkan e-book interaktif fisika berbasis kearifan lokal dengan pendekatan pembelajaran inkuiri. Metode penelitian menggunakan pendekatan Research and Development (R&D) dengan model ADDIE (Analyze, Design, Develop, Implement, Evaluate). Instrumen penelitian mencakup angket validasi ahli, tanggapan guru dan siswa, serta tes objektif untuk menilai pemahaman konsep fisika. Hasil validasi menunjukkan media ajar memiliki tingkat kelayakan yang sangat tinggi dari segi konstruk media (86%) dan kesesuaian isi materi (88%). Respon guru dan siswa juga sangat positif dengan capaian masing-masing 86%. Implementasi media ajar pada pembelajaran fisika materi fluida dinamis menunjukkan peningkatan signifikan pada pemahaman konsep siswa, dengan rata-rata nilai pretest sebesar 66 meningkat menjadi 94 pada posttest, serta ketuntasan klasikal mencapai 97,2%. E-book interaktif yang dikembangkan layak digunakan, efektif dalam meningkatkan hasil belajar fisika. Media ini dapat mendukung pembelajaran yang bermakna melalui integrasi konteks budaya lokal dan pendekatan inkuiri.
PENGEMBANGAN MODUL PEMBELAJARAN FISIKA TERINTEGRASI KEARIFAN LOKAL TAGANING UNTUK KETERAMPILAN KONSEPTUAL GELOMBANG MEKANIK Purba, Bulus Tua M.; Marbun, Juliaster; Sinaga, Goldberd Harmuda Duva; Surbakti, Mariana; Sitorus, Parlindungan
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

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

Abstract

Conceptual skills in physics are an essential foundation for students to understand natural phenomena deeply and analytically, yet conventional teaching often fails to connect abstract theory with real-life contexts. This study aims to develop a physics learning module integrated with the local wisdom of the Toba Batak Taganing on mechanical wave material to enhance students' conceptual skills. The developed module links concepts of waves, resonance, and interference with the acoustic principles of the Taganing musical instrument through a Problem-Based Learning approach. Expert validation results demonstrated a high level of feasibility, with details of 78% (Feasible category) by subject matter experts, 85% (Highly Feasible) by cultural experts, and 97% (Highly Feasible) by language experts. A limited trial with grade XI students showed an improvement in conceptual skills, specifically an abstraction ability of 71% (Good) and systematic thinking of 72% (Good). Teacher and student responses to the module were very positive, with a practicality level of 81%, indicating that the module is not only easy to use but also contextual and engaging. These findings confirm that integrating local wisdom into ethnoscience-based physics learning design is not only effective in strengthening students' conceptual understanding but also plays a strategic role in preserving cultural heritage and fostering learning engagement.
Co-Authors Adhi Wibowo Ady Frenly Simanullang Agoez Loeqman Agoez Loeqman Angin, Aunike Fedora Br Perangin Ariefka, Reza Arip Nurahman Arip Nurahman Budiman Nasution Era Novita Sijabat Ezra Octania Sianipar Gloria Sirait halawa, analiser Handoco, Ewin Hebron Pardede Herna Febrianty Sianipar Indah Indah Irving Josafat Alexander Jaya, Pratama Jono Barita Sianipar Jono Barita Sianipar Juliper Nainggolan Lubis, Rointan Lulut Alfaris Manalu, Sanyosep Rezeki Marbun, Juliaster Mariana Br Surbakti Mariana Br. Surbakti Martha Rianna Mia Endang Sari Sinaga Mila Susanty Sianipar Morianus Gowasa Muhlis, Dasep nainggolan, juliper Nurahman, Arip Pandu Pribadi Pardede, Hebron Parlindungan Sitorus Prasetyo, Retno Agung Pribadi, Pandu Purba, Bulus Tua M. Purba, Jhon Sufriadi Purwanto, Romdhon Rina Kristiana Sitepu Ronny Napitupulu Ruben Cornelius Siagian Ruben Cornelius Siagian Sahroni, Taufik Roni Saragi, Jandri Fan HT Siagian, Ruben Cornelius SIANTURI, TAMBOS AUGUST Sihotang, Limayiana Sinaga, Fajar Gohanda Sinaga, Mardame Pangihutan Sirait, Sunggu Siska Yunita Hutagalung SITINJAK, ERNI KUSRINI Sormin, Grace Toga Simarmata Welmar Olfan Barat, Welmar Olfan