Article Per Year (5 Year)
p-Index From 2021 - 2026
3.637
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Fisika JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) ORBITA: Jurnal Pendidikan dan Ilmu Fisika SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Aptisi Transactions on Technopreneurship (ATT) KARST : Jurnal Pendidikan Fisika dan Terapannya Indonesian Science Education Research (ISER) EDUCTUM: Journal Research INPAFI (Inovasi Pembelajaran Fisika) Enrichment: Journal of Multidisciplinary Research and Development Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat Cendikia Pendidikan Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam JPFT (Jurnal Pendidikan Fisika Tadulako Online) Jurnal Pendidikan Fisika Indonesia
Rajo Hasim Lubis
Prodi Pendidikan Fisika, Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 30 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 30 Documents
Search

 1   2   3 
ANALISIS PROSES FISIKA KIMIA DIATMOSFER YANG MEMPENGARUHI PEMBENTUKAN DAN DISPERSI POLUTAN UDARA Arya, Danu Dwi; Agustina, Dhiah Ayu; Suriatama, Dimas; Kartika, Suci Dwi; Lubis, Rajo Hasim
Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 6 No. 2 (2025): Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Cahaya Ilmu Bangsa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3483/trigonometri.v6i2.11986

Abstract

Polusi udara merupakan tantangan lingkungan global yang berdampak pada kesehatan manusia, ekosistem, dan perubahan iklim. Proses fisika-kimia di atmosfer, seperti reaksi fotokimia, dinamika lapisan atmosfer, dan interaksi aerosol dengan awan, berperan penting dalam pembentukan dan dispersi polutan udara. Penelitian ini bertujuan untuk menganalisis interaksi antara proses fisika dan kimia yang menentukan nasib polutan di atmosfer, mengidentifikasi faktor dominan yang mempengaruhi dispersi polutan, serta menyusun kerangka konseptual untuk memprediksi pola distribusi polutan dalam berbagai skala. Berdasarkan studi literatur, ditemukan bahwa reaksi fotokimia memainkan peran utama dalam pembentukan ozon troposferik, sedangkan aerosol dapat mempengaruhi keseimbangan energi bumi melalui efek pendinginan atau pemanasan. Variabilitas harian dan musiman polutan udara dipengaruhi oleh kondisi atmosfer dan fenomena seperti urban heat island (UHI). Selain itu, kondisi meteorologi ekstrem seperti gelombang panas dapat memperburuk kualitas udara, sementara vegetasi dan permukaan reflektif memiliki dampak signifikan terhadap suhu dan konsentrasi polutan. Hasil penelitian ini diharapkan dapat memberikan wawasan lebih dalam tentang mekanisme atmosfer yang mempengaruhi polusi udara serta membantu perancangan kebijakan pengendalian polusi yang lebih efektif.
Prinsip Termodinamika Dalam Pengembangan Teknologi Cryotherapy Untuk Pengobatan Cedera: Studi Literatur Syahputri, Airi Rizki; Hura, Dania Priskilla; Simanihuruk, Rahel Novita; Lubis, Rajo Hasim
JPFT (Jurnal Pendidikan Fisika Tadulako Online) Vol. 13 No. 2 (2025): JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jpft.v13i2.4365

Abstract

Cryotherapy merupakan teknologi medis yang semakin berkembang, terutama dalam penanganan cedera akut dan peradangan pada atlet. Penelitian ini mengeksplorasi prinsip termodinamika dalam cryotherapy, khususnya proses perpindahan panas dan efektivitasnya dalam pemulihan cedera. Metode yang digunakan adalah studi literatur dengan menganalisis 21 jurnal peer-review dari Google Scholar menggunakan kata kunci seperti "cryotherapy AND thermodynamics AND athlete injury". Hasil penelitian menunjukkan bahwa metode cool water immersion efektif mengurangi nyeri dan inflamasi melalui mekanisme vasokonstriksi, vasodilatasi, dan penghambatan konduksi saraf sensorik. Inovasi seperti sensor suhu otomatis dan kombinasi dengan terapi kompresi udara meningkatkan efisiensinya. Studi Smith et al. [12] membuktikan bahwa cryotherapy selama 20 menit setelah aktivitas intens dapat mengurangi inflamasi dan mempercepat pemulihan otot. Implikasinya, cryotherapy tidak hanya mengurangi nyeri dan pembengkakan tetapi juga meningkatkan performa atlet melalui regenerasi jaringan yang lebih cepat. Secara keseluruhan, cryotherapy terbukti sebagai metode pemulihan yang efisien untuk cedera olahraga jika diterapkan dengan prosedur yang tepat. Dengan memahami prinsip termodinamika, pengembangan teknik cryotherapy dapat semakin dioptimalkan untuk manfaat yang lebih besar.
Riset Siswa Inovatif Menuju OPSI: Strategi Berbasis Proyek Demi Pendidikan Berkualitas (SDGs 4) Lubis, Rajo Hasim; Sani, Ridwan A; Rahmatsyah; Juliani, Rita; Batubara, Agung Setia
Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 3 (2025)
Publisher : FKIP Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/amalilmiah.v6i3.412

Abstract

Mitra program pengabdian adalah SMAN 18 Medan, sebuah sekolah menengah atas yang memiliki potensi besar dalam mendukung guru untuk memfasilitasi pembelajaran berbasis riset. Namun, hasil observasi menunjukkan bahwa guru masih menghadapi kendala dalam membimbing siswa untuk mengikuti Olimpiade Penelitian Siswa Indonesia (OPSI) secara optimal. Sebagai solusi, program pengabdian akan dilaksanakan melalui serangkaian pelatihan intensif dan pendampingan bagi guru-guru. Target luaran dari program pengabdian adalah meningkatnya kapasitas guru di Sekolah dalam membimbing siswa mengikuti OPSI secara efektif. Melalui kegiatan ini, diharapkan terjadi peningkatan kualitas pembelajaran di Sekolah, sehingga mendukung tercapainya tujuan SDGs Point 4 yakni Pendidikan berkualitas. Metode yang digunakan melibatkan pendekatan partisipatif dengan mengutamakan pelibatan aktif guru dalam setiap tahapan kegiatan. Program pengabdian dimulai dengan identifikasi kebutuhan mitra, pelaksanaan pelatihan dan pendampingan, hingga evaluasi hasil implementasi. Kesimpulan yang diperoleh yakni telah meningkatnya kreativitas guru dalam membimbing OPSI dengan alasan 7 dari 8 tim yang diusulkan telah lolos tahap substansi dan layak melanjutkan penelitian. Pendampingan diharapkan mampu menciptakan perubahan berkelanjutan dalam pola pengajaran guru di Sekolah, sehingga dapat meningkatkan kualitas pendidikan sesuai dengan prinsip SDGs Point 4.
A Differentiated Instruction-Oriented Physics e-Module: Development and Its Impact on Conceptual Understanding Lubis, Rajo Hasim; Br Manurung, Siska Yulianti; Tampubolon , Togi; Wahyuni , Ida; Panggabean, Deo Demonta; Sinaga , Johana Theresia
Jurnal Pendidikan Fisika Indonesia Vol. 21 No. 1 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v21i1.9495

Abstract

Based on observations conducted at a senior high school in Medan, the previously utilized e-module proved to be underexploited, primarily due to its limited format, comprising static text, images, and video links, which failed to accommodate the varied learning preferences of students. This misalignment contributed to low impact on learning outcomes, particularly in Work and Energy. The present study sought to design a differentiated-instruction-based e-module that is pedagogically valid, practically feasible, and demonstrably effective in fostering conceptual understanding. Employing a Research and Development (R&D) framework grounded in the 4-D model (Define, Design, Develop, Disseminate), data were gathered through expert validation instruments, response questionnaires, and achievement tests. Subject matter experts rated the module highly valid, while media specialists deemed it moderately valid. Teacher feedback and field trials affirmed its practical applicability. N-gain analysis of pretest–posttest results indicated substantial learning gains. The findings underscore the module’s efficacy and pedagogical value in delivering structured, engaging, and accessible instruction.
Literature Study on the Utilization of Electromagnetic Waves in the Health Sector Sinaga, Erdina Sari; Handayani, Fitri; Hutagalung, Nazma Yanti; Rifandha, Surya Azi; Lubis, Rajo Hasim
Enrichment: Journal of Multidisciplinary Research and Development Vol. 1 No. 2 (2023): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (718.73 KB) | DOI: 10.55324/enrichment.v1i2.6

Abstract

The rapid development of natural sciences, especially in developing the concept of physics in the health sector. Its utilization can facilitate the healing of diseases, such as using electromagnetic waves in healing diseases. This study aims to determine the benefits generated from electromagnetic waves that can help and facilitate the handling of diseases in the health sector by using a literature study method that utilizes information retrieval from several journals and trusted sources. Electromagnetic waves can be used in X-rays. Areas of the body that need to be examined through emitted X-rays. Ultrasonogram (USG) is a medical equipment used in tomography to see the fetus's condition and others where all of that is the use of Physics in the Utilization of Electromagnetic Waves which helps the health sector.
PENGARUH RADIASI ELEKTROMAGNETIK TERHADAP KESEHATAN DAN UPAYA PENCEGAHANNYA Turnip, Elfrida; Meta Sari, Meta Sari; Hutajulu, Putri Sridewi; Sirait, Yohana; Lubis, Rajo Hasim
Karst: Jurnal Pendidikan Fisika dan Terapannya Vol 7 No 2 (2024): Karst : Jurnal Pendidikan Fisika dan Terapannya
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/karst.v7i2.2314

Abstract

The impact of electromagnetic radiation on health and preventive measures. Laptops emit electromagnetic radiation, including blue light from screens and microwaves from Wi-Fi modules, which pose potential cumulative health risks. This study aims to measure the electromagnetic radiation emitted by laptops, evaluate its impact on user health, and identify applicable preventive measures. The research employed a qualitative method based on library research with a content analysis approach. The findings reveal that blue light intensity ranges from 10–50 µW/cm², while microwave radiation from Wi-Fi reaches up to 2.0 mW/cm² at close distances. Health impacts include eye fatigue, accommodation disorders, and neurological effects such as headaches and fatigue due to prolonged radiation exposure. Identified preventive measures include blue light filters, screen distance adjustments, and low-power Wi-Fi technology. This study offers practical guidelines to minimize health risks associated with electronic device usage.
IDENTIFIKASI PENGARUH GELOMBANG DAN BUNYI PADA FENOMENA MENDENGAR Sihotang, Hartati Kartika Br; Karo, Judha Stepanus; Sihotang, Kartini Anggi Agata; Simbolon, Vipta Niva Mariana; Lubis, Rajo Hasim
Karst: Jurnal Pendidikan Fisika dan Terapannya Vol 7 No 2 (2024): Karst : Jurnal Pendidikan Fisika dan Terapannya
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/karst.v7i2.2527

Abstract

Waves are vibrations that propagate, either through the media or not through the media. Sound is wave energy that comes from a sound source, namely a vibrating object. Where the purpose of this study is to find out how waves and sound affect the phenomenon of hearing. Based on the problems raised, the research method that is suitable for use is in the form of literature studies or literature studies. Literature study can be reached by collecting references consisting of several previous studies which are then compiled to draw conclusions. The sound that the human ear hears changes from a mechanical acoustic signal to an electrical signal that is passed on by the auditory nerve to the brain. The results showed that the process of hearing goes through three stages, namely the stage of transferring physical energy in the form of a sound stimulus to the hearing organ, the conversion or transduction stage, namely the conversion of the physical energy stimulation to the receiving organ and the stage of transmitting nerve impulses to the auditory cortex and of course it cannot be separated from the human hearing organ. namely ears. The process of hearing is a process that is not simple, in order to hear humans must have good hearing organs and hearing function. The organ system of hearing is divided into peripheral and central.
Development of Hybrid Learning Multimedia Assisted by Telegram in Modern Physics Megalina, Yeni; Rugaya, Rugaya; Hutahaean, Juniar; Lubis, Rajo Hasim
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5561

Abstract

After the covid 19 period ended, learning at Medan State University was conducted face-to-face and online, creating good learning media and design is part of the effort to achieve learning objectives effectively as mandated by the education system. This study aims to develop hybrid learning multimedia assisted by telegram, which is feasible, practical and makes students independent and influential. The research was conducted at the Physics Department of State University of Medan. The phases that will be carried out during the research are needs analysis, design of learning multimedia, development and validation of learning multimedia, implementation of multimedia to students, and internal and external evaluation. The resulting product is a learning multimedia that will be applied to partners, namely students of the Physics Department who take Modern Physics courses. This multimedia was sent to the Telegram group class of 2021 B and 2021 C students. The results of this study are: (a) the percentage of assessment scores for learning multimedia from material experts is 81% and the percentage of assessment scores from media experts is 83% (b) the percentage of student independence questionnaires is 83.8% (c) the percentage of student practicality questionnaires is 88.2% (d) N-gain for PSPF 2021-B is obtained, the result obtained is 0.23 because N-gain <0.23 in the low category and N-gain for PSPF 2021-C is obtained, the result obtained is 0.3 in the medium category.
Implementasi pembelajaran diferensiasi berbasis projek dalam mengakselerasi kurikulum merdeka Juliani, Rita; Rahmatsyah, Rahmatsyah; Lubis, Rajo Hasim; Bara, Agung Setia Batu; Nasution, Budiman; Khoir, Aji Ibnu; Febriza, Tiara Rizka; Lubis, Nur Saimah; Syahdila, Tiara; Andini, Khairanum
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 3 (2024): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i3.25881

Abstract

AbstrakSMA Negeri 1 Percut Sei Tuan merupakan sekolah yang menerapkan kurikulum Merdeka. Kegiatan PKM Implementasi Pembelajaran Diferensiasi Berbasis Projek dalam Mengakselerasi Kurikulum Merdeka bertujuan untuk memahami dan meningkatkan efektivitas pembelajaran diferensiasi yang didasarkan pada pendekatan projek dalam konteks Kurikulum Merdeka. Fokus kegiatan terletak pada penerapan strategi diferensiasi untuk memenuhi kebutuhan belajar yang beragam di tengah kurikulum yang memberikan kebebasan dan fleksibilitas khususnya dalam menghasilkan media berorientasi diferensiasi. Kegiatan PKM mengeksplorasi integrasi model pembelajaran projek dengan diferensiasi untuk memfasilitasi perkembangan keterampilan dan pemahaman siswa secara holistik, menciptakan landasan untuk penerapan Kurikulum Merdeka yang memungkinkan perkembangan optimal siswa sesuai dengan potensi individu siswa serta melalui pengabdian diharapkan mempercepat kurikulum merdeka. Metode yang digunakan pada kegiatan PKM dengan tiga tahapan yaitu tahap persiapan, pelaksanaan, dan penutup. Tahap persiapan dimulai dari observasi dan wawancara, pemetaan potensi, pendataan calon peserta dan persiapan tim dan bahan. Tahap pelaksanaan kegiatan dengan melakukan sosialisasi, pelatihan dan pendampingan, serta tahap penutup dengan melaksanakan monitoring dan evaluasi. Hasil yang diperoleh guru memahami dan mengimplementasikan pembelajaran diferensiasi berbasis projek dengan membuat inovasi media dan bahan ajar terintegrasi diferensiasi sehingga terwujud efektivitas dalam mengakslerasi kurikulum merdeka. Kata kunci: pembelajaran diferensiasi; proyek; kurikulum merdeka. Abstract SMA Negeri 1 Percut Sei Tuan is a school that implements the Merdeka curriculum. The PKM activity of Optimizing Project-Based Differentiated Learning to Accelerate the Merdeka Curriculum aims to understand and improve the effectiveness of differentiated learning based on the project approach in the context of the Merdeka Curriculum. The focus of the activity lies in the application of differentiation strategies to meet diverse learning needs in the midst of a curriculum that provides freedom and flexibility, especially in producing differentiation-oriented media. The PKM activity explores the integration of the project learning model with differentiation to facilitate the development of students' skills and understanding holistically, creating a foundation for the implementation of the Merdeka Curriculum that allows for optimal student development according to the potential of individual students and through devotion it is hoped that it can accelerate the Merdeka curriculum. The method used in the PKM activity has three stages, namely the preparation, implementation, and closing stages. The preparation stage starts from observation and interviews, potential mapping, data collection of prospective participants and preparation of teams and materials. The implementation stage of the activity by conducting socialization, training and mentoring, and the closing stage by carrying out monitoring and evaluation. The results obtained by teachers understand and implement project-based differentiation learning by creating innovative media and integrated differentiation teaching materials so that effectiveness can be realized in accelerating the independent curriculum. Keywords: differentiated learning; project; independent curriculum.
TPACK Based Differentiated Problem Posing to Enhance Entrepreneurial Digital Problem Solving Derlina, Derlina; Zuhra, Siti; Mihardi, Satria; Lubis, Rajo Hasim; Purba, John Tampil; Stephanie, Stephanie
Aptisi Transactions On Technopreneurship (ATT) Vol 7 No 3 (2025): November
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v7i3.609

Abstract

This study aims to determine the effect of TPACK-based differentiated learning on high school students' problem-solving abilities and motivation. The study, conducted at Private Senior High School PAB 8 Saentis Sei Tuan, used a quasi-experiment method with two classes: the experimental class, which used the differentiated problem solving model based on TPACK, and the control class, which used the conventional school learning model without differentiation. The results of this study indicate that the average post-test score for student problem-solving abilities in the experimental class was higher than in the control class. Statistical testing using two-way ANOVA showed that the problem-solving skills of students taught with the TPACK-based differentiated learning model demonstrated a significant influence between the learning model and motivation on students' problem-solving skills, as well as an interaction between the TPACK based problem posing learning model and motivation in terms of problem-solving skills. These findings have practical implications for educators, providing evidence that the TPACK-based differentiated problem-posing learning model is more effective in improving students' problem solving abilities than the conventional learning model, with learning motivation also playing an essential role in enhancing student problem-solving skills.
Co-Authors Agustina, Dhiah Ayu Andini, Khairanum Anggreiny, Lavenia Puspa Anike Renti Anita Sinaga Apri Ananta Sitio Arya, Danu Dwi Bara, Agung Setia Batu Batubara, Agung Setia Br Manurung, Siska Yulianti Budiman Nasution Chairani, Sarah Deo Demonta Panggabean Derlina . Enjelaria Siregar Febriza, Tiara Rizka Fitri Handayani Gunawan, Rifa Ardhana Hani Diana Sipayung Hura, Dania Priskilla Hutagalung, Nazma Yanti Hutajulu, Putri Sridewi Icha Netanya Sianturi Ida Wahyuni Irfandi Irfandi Juniar Hutahaean Karina Angely Sinaga Karo, Judha Stepanus Kartika, Suci Dwi Karyn Arme Septia Br Ritonga Khairul Amdani Khoir, Aji Ibnu Limbong, Ezra Egidia Shelomita Lubis, Nur Saimah Malau, Cindy Klovia Manullang, Agnes Angelina Maria Putriguna Sinaga Meta Sari, Meta Sari Milda, Debora Nanda Safarati Nurul Fadilah, Nurul Padang, Relasti Pasaribu, Monika Dian Sari Pasaribu, Shofia Debora Pitaloka, Mike Vanesa Purba, John Tampil Rahmatsyah Rahmatsyah Rahmatsyah, Rahmatsyah Raihan Asy Shifa Arifin Ratna Tanjung Ridwan Abdullah Sani Rifandha, Surya Azi Rita Juliani Rugaya, Rugaya Sahyar . Sani, Ridwan A Satria Mihardi Sembiring, Rinawati Shella Veronica Br Perangin-Angin Sihotang, Hartati Kartika Br Sihotang, Kartini Anggi Agata Silaban, Adeline Silvia Dona Sari Simanihuruk, Rahel Novita Simanjuntak, Andrew Simanungkalit, Ferawati Simbolon, Vipta Niva Mariana Sinaga , Johana Theresia Sinaga, Erdina Sari Sinaga, Vincen Ision Sirait, Yohana Situmorang, Sentia Stephanie Stephanie Suriatama, Dimas Sutria, Yuna Syahdila, Tiara Syahputri, Airi Rizki Syahputri, Susi Tampubolon , Togi Tampubolon, Yenji Betaria Sonata Teti Damayanti Tina Suryani Siregar Tulung, Laila Tulisna Turnip, Elfrida Wahyuni , Ida Wawan Bunawan Yeni Megalina Yeni Megalina, Yeni Zuhra, Siti