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Kappa Journal
Published by Universitas Hamzanwadi
ISSN : -     EISSN : 25492950     DOI : -
Core Subject : Science, Education,
Astronomy Physics Other
Kappa Journal (e-ISSN 2549-2950) mempublikasikan artikel hasil-hasil penelitian fisika, inovasi pembelajaran fisika, dan pemikiran-pemikiran kritis tentang fisika maupun pendidikan fisika. Kappa Journal diterbitkan oleh Universitas Hamzanwadi dua kali setahun yakni setiap bulan Juni dan Desember.
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Articles 11 Documents
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Search results for , issue "Vol 10 No 1 (2026): April" : 11 Documents clear
Assessment of Tsunami Potential in Bali Using TOAST Modeling: Implications for Disaster Risk Reduction Nurmalasari, Ni Putu Yuni; Adnyana, I Gusti Agung Putra
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.32548

Abstract

This study aims to evaluate the tsunami hazard potential in the Bali region using multi-scenario numerical modeling to support disaster mitigation and early warning planning. Tsunami simulations were performed using the Tsunami Observation and Simulation Terminal (TOAST) with the EasyWave module. The model inputs were derived from the BMKG historical earthquake catalog and the 2017 Indonesian Seismic Hazard Map (PUSGEN), focusing on the Flores Back Arc Thrust segment north of Bali. Four earthquake magnitude scenarios (Mw 7.0, 7.2, 7.5, and 8.5) were simulated to estimate maximum wave heights and tsunami arrival times along the Bali coastline. The results indicate that nearly all coastal areas of Bali are vulnerable to tsunami impacts. In the worst-case scenario (Mw 8.5), maximum wave heights exceed 5 m in Sanur (Denpasar), Klungkung, and southern Karangasem, with short arrival times ranging from 5 to 22 minutes, corresponding to the highest warning level. Although moderate-magnitude scenarios (Mw 7.0–7.5) generate lower wave heights, tsunami arrival times remain rapid, indicating limited evacuation opportunities. These findings highlight the urgency of multi-scenario tsunami hazard assessment, enhancement of tsunami early warning systems, and improvement of evacuation preparedness to reduce tsunami risk in Bali.
Pengembangan Media Audiovisual pada Materi Listrik Kelas V Menggunakan Pendekatan Saintifik Pratiwi, Selly; Dwi, Dara Fitrah; Husna, Tiflatul; Silalahi, Beta Rapita; Khadir , Dalimawati
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.32652

Abstract

This study produced an audiovisual learning media based on the scientific approach for Grade V elementary school electricity material. The media was developed using a Research and Development (R&D) model with the ADDIE approach, up to the development and validation stages. Data collection instruments included teacher and student questionnaires, teacher interviews, and observations. A total of 28 Grade V elementary students participated as respondents. Validation results by material and media experts showed a very high feasibility level (83.33% and 97.33%). Analysis of teacher and student responses indicated the media's effectiveness in improving understanding and learning motivation. Further research is needed to validate the effectiveness and sustainability of this learning media in the long term.
Identification Of Sediment Thickness Using The Geomagnet Method in Beleka and Dasan Tapen Villages, Gerung District, West Lombok Regency Putri, Izza Aulia; Minardi, Suhayat; Syamsuddin, Syamsuddin
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.31890

Abstract

Gerung is one of the sub-districts in West Lombok Regency. Based on data from BNPB the Gerung sub-district area is an area that is vulnerable to the natural phenomenon of earthquakes, because the soil in this area has a softer texture so that when vibrations occur, the vibrations will be stronger. Geologically, this alluvium formation is very vulnerable to the natural phenomenon of earthquakes because it is related to the thickness of the sediment. This research aims to determine the thickness of sedimentary rocks in the Gerung District. One of the Geophysical Methods used in this research is the Geomagnetic Method. Based on the 2-Dimensional modeling of the AA' - FF' Incision, it consists of five rock layers, namely the first layer includes Silt Rock, the second layer includes Sand Rock, the third layer includes Clay, the fourth layer includes Breccia Rock and the fifth layer includes Lava Rock. The composition of the five rock layers, layers including sedimentary rock is found in the first layer to the fourth layer. The results of the research for sediment thickness from the six incisions ranged from 405 m – 485 m. Based on the results of this research, it can be concluded that Beleka Village and Dasan Tapen Village it is composed of five rock layers with a dominant sediment thickness of 485 m, namely at the AA' incision in the western part of Beleka Village
Pengembangan Media Mobile Learning Berbasis Android Menggunakan Kodular pada Materi Suhu dan Kalor Muhammad Maulana Husaen; Nasir, Muhammad; Yuliani, Hadma; Nastiti, Luvia Ranggi
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.31342

Abstract

Dalam Revolusi Industri 4.0, teknologi telah membawa perubahan signifikan dalam pendidikan, terutama melalui integrasi perangkat mobile. Penelitian ini bertujuan mengembangkan media mobile learning berbasis Android menggunakan Kodular untuk pembelajaran interaktif pada materi suhu dan kalor. Dengan metode Research and Development (R&D) dan model 4D (Define, Design, Develop, Disseminate) hingga tahap Develop, hasil validasi menunjukkan skor rata-rata 95,00% dari ahli media dan 86,67% dari ahli materi, keduanya dalam kategori “sangat layak”. Uji praktikalitas menghasilkan skor 92,38% dari guru (kategori “sangat baik”) dan 79,73% dari siswa (kategori “baik”). Media ini meningkatkan pemahaman konsep siswa melalui simulasi interaktif dan fleksibilitas akses, sehingga efektif mendukung pembelajaran fisika di era digital.
Uji Kesesuaian Alat Proteksi Radiasi Berdasarkan Nilai Exposure Index (EI) di Rumah Sakit Bali Mandara Tamba, Chasbas Putra; Sutapa, Gusti Ngurah; Putra, Ketut; Sandi, Nengah; Gede Suharta, I Wayan; Kasmawan, I Gde Antha
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.31760

Abstract

A study has been conducted on the suitability test of radiation protection equipment based on the Exposure Index (EI) at Bali Mandara Hospital. The data used in this study are primary data obtained by conducting X-ray irradiation on PPE, namely Apron, Gonad Shield, thyroid Shield, gloves, and glasses using an X-ray machine. Then the irradiation results are processed using a CR system machine to obtain EI values using variations in tube voltage of 80 Kv, 100 Kv, 130 Kv, and a time current of 18 mAs. From the results of the analysis that has been carried out, the average EI value was obtained with a tube voltage of 80 kV for Apron 1004.60 ± 1.72, gonad shield 1302.80 ± 1.94, Thyroid shield 1444.60 ± 1.63, glasses 1375.40 ± 1.72, gloves 1478.60 ± 0.93, for a tube voltage of 100 kV the EI value for the apron was 1511.20 ± 1.24, gonad shield 1697.80 ± 1.65, thyroid shield 1810.60 ± 1.57, glasses 1598.60 ± 1.33, gloves 1819.40 ± 0.75, for a tube voltage of 130 kV 1831.00±1.41, gonad shield 2090.60±1.21, thyroid shield 2129.00±2.00, glasses 2980.20±1.07, gloves 2114.00±1.41. The EI value obtained using 80 kV tube voltage is still within the limits set by PERKA BAPETEN No.8 of 2011, namely 1300-1800
Penerapan Model Guided Discovery Learning (GDL) Berbantuan Amrita untuk Meningkatkan Keterampilan Berpikir Kritis Peserta Didik pada Materi Suhu dan Kalor Mutiara Ananda, Dinda; Malik, Adam; Chusni, Muhammad Minan
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.33161

Abstract

Penelitian ini bertujuan untuk mengetahui penerapan serta perbedaan peningkatan keterampilan berpikir kritis peserta didik setelah diterapkannya model Guided Discovery Learning (GDL) berbantuan media Amrita dan model Inquiry Learning berbantuan media Amrita pada materi suhu dan kalor. Penelitian ini menggunakan metode kuantitatif dengan desain kuasi-eksperimen melalui non-equivalent control group design. Populasi penelitian terdiri atas 207 peserta didik kelas XI di SMAN 14 Garut, dengan teknik cluster random sampling. Sampel penelitian yaitu kelas XI-5 sebagai kelas eksperimen pertama (31 peserta didik) dan kelas XI-6 sebagai kelas eksperimen kedua (30 peserta didik). Hasil penelitian menunjukkan bahwa rata-rata keterlaksanaan pembelajaran pada kelas eksperimen pertama mencapai 90% untuk aktivitas guru dan 84% untuk aktivitas peserta didik, sedangkan pada kelas eksperimen kedua mencapai 89% untuk aktivitas guru dan 82% untuk aktivitas peserta didik. Keduanya termasuk kategori sangat baik. Peningkatan keterampilan berpikir kritis ditunjukkan oleh nilai N-Gain, yaitu 0,75 (kategori tinggi) untuk kelas eksperimen pertama dan 0,59 (kategori sedang) untuk kelas eksperimen kedua. Hasil uji hipotesis menggunakan independent t-test menunjukkan nilai signifikansi 0,000 < 0,05, sehingga H₀ ditolak. Dengan demikian, terdapat perbedaan signifikan dalam peningkatan keterampilan berpikir kritis antara peserta didik yang belajar menggunakan model GDL berbantuan Amrita dan model Inquiry Learning berbantuan Amrita pada materi suhu dan kalor.
Pengembangan Asesmen Technological Pedagogical Content Knowledge (TPaCK) untuk Meningkatkan Kemampuan Pedagogical Mahasiswa Calon Guru Fisika Hakim Assegaf, Syarif Lukman; Sukadi, Eti; Nurhayati, Nurhayati
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.33428

Abstract

This study aims to develop a Technological Pedagogical Content Knowledge (TPaCK)-based assessment instrument to measure and support the improvement of pedagogical competence among pre-service physics teachers. The instrument was developed in the form of reasoned multiple-choice items that integrate Content Knowledge (CK), Pedagogical Knowledge (PK), Technological Knowledge (TK), and their interrelationships within the TPACK framework in the General Physics I course, which covers fundamental mechanics concepts. The study employed a Research and Development approach using the ADDIE model, limited to the development stage. The distribution of test items indicates proportional representation of CK, PK, TK, and integrated TPaCK aspects. The developed instrument consisted of 23 items and was piloted with first-semester students of the Physics Education Study Program who had completed the General Physics I course. Item analysis included tests of validity, reliability, difficulty level, and discrimination index. The results showed that 12 items met the eligibility criteria and were considered valid and reliable as a TPaCK-based assessment instrument. These findings suggest that the developed TPaCK assessment has the potential to serve as a contextual and relevant evaluation tool for measuring the pedagogical competence of pre-service physics teachers in technology-enhanced learning environments
Literasi Digital dalam Pembelajaran IPA: Analisis Kebutuhan Asesmen Berbasis Efikasi Diri Siswa Hidayat, M.; Amnie, Erlida; Sirait, Jeliana Veronika; Mursyd, Danial
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.33821

Abstract

Literasi digital telah menjadi kompetensi mendasar dalam pembelajaran abad 21, tetapi praktik asesmen masih cenderung mengukur keterampilan teknis tanpa mempertimbangkan dimensi efikasi diri siswa. Penelitian ini bertujuan mengidentifikasi kebutuhan pengembangan asesmen literasi digital pada pembelajaran IPA yang dapat meningkatkan efikasi diri siswa. Studi pendahuluan ini menggunakan metode penelitian kualitatif deskriptif dengan wawancara semi-terstruktur terhadap empat guru IPA di Provinsi Jambi dan observasi pembelajaran. Data dianalisis menggunakan analisis tematik. Hasil penelitian menunjukkan tiga temuan utama: (1) infrastruktur teknologi cukup memadai namun terdapat kesenjangan kompetensi digital antar guru; (2) siswa memiliki keterampilan teknis yang baik tetapi lemah dalam literasi informasi kritis; dan (3) praktik asesmen efikasi diri belum dilakukan secara sistematis. Temuan ini mengindikasikan perlunya dilakukan pengembangan instrumen asesmen yang mengintegrasikan tujuh aspek literasi digital dengan tiga dimensi efikasi diri (magnitude, generality, strength). Penelitian ini berkontribusi pada kerangka konseptual integrasi literasi digital dan efikasi diri serta memberikan rekomendasi praktis untuk pengembangan profesional guru, penyediaan infrastruktur memadai, dan kebijakan kurikulum yang mendukung pengembangan kedua kompetensi tersebut dalam pembelajaran IPA.  
Paradoks Kembar (Twin Paradox): Analisis dan Resolusi dalam Kerangka Teori Relativitas Khusus Fadly, M.; Simatupang, Hizkia Natanael; Aritonang , Yanti Seniawati; Sihite, Amisha; Siregar, Elisa; Purba, Jujur Marholong; Panggabean, Deo Demonta; Sitinjak, Ladestam
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.32574

Abstract

The Twin Paradox stands as one of the most challenging thought experiments in Einstein's special theory of relativity, seemingly revealing an internal contradiction within the theory itself. This paradox illustrates the scenario of twin siblings where one travels through space at relativistic speeds while the other remains on Earth. A naive analysis from both perspectives yields contradictory conclusions: each twin predicts the other would be younger. This apparent contradiction forms the core of the paradox. The paradox can be completely resolved within the framework of special relativity without needing to invoke general relativity. This research uses a library research method by collecting data from various relevant sources that support the twin paradox in the concept of time expansion. Experimental verification through the Hafele-Keating experiment with atomic clocks and observations of atmospheric muon decay confirms the theoretical predictions.
Analisis Data Curah Hujan untuk Mengidentifikasi Dampak Perubahan Iklim di Indonesia Ginting, Eva Marlina; Panggabean, Deo Demonta; Safitri, Aura Mutasyifa; Tarigan, Calvin Mahaga; Salsabila, Cinta; Gultom, Esmeralda Susiana; Sakdiah, Halimatun; Khairunisa, Khairunisa; Manik, Krisdayanti; Harahap, Resti Amelya; Harahap, Sanjaya; Sibagariang, Selpi Andryani Br; Hannum, Syarifah
Kappa Journal Vol 10 No 1 (2026): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v10i1.32591

Abstract

Perubahan iklim merupakan fenomena global yang ditandai oleh perubahan kondisi iklim jangka panjang, baik dalam bentuk kenaikan suhu rata-rata permukaan bumi, perubahan distribusi curah hujan, maupun meningkatnya frekuensi kejadian iklim ekstrem. Penelitian ini bertujuan Mendeskripsikan dampak perubahan iklim terhadap pola curah hujan di Indonesia, Mengidentifikasi tren dan pola yang berubah berdasarkan kajian literatur, Memberikan gambaran potensi risiko dan tantangan akibat perubahan curah hujan. Hasil penelitian menunjukkan bahwa perubahan iklim di Indonesia telah menimbulkan dampak nyata terhadap pola curah hujan. Terjadi pergeseran musim, peningkatan intensitas hujan ekstrem, serta periode kering yang lebih panjang di sejumlah wilayah. Fenomena ini disebabkan oleh kombinasi antara pemanasan global, perubahan sistem monsun, serta pengaruh fenomena global seperti El Niño, La Niña, dan Indian Ocean Dipole. Dampaknya meluas ke berbagai sektor, terutama pertanian, sumber daya air, dan lingkungan hidup, serta meningkatkan risiko bencana hidrometeorologi. Oleh karena itu, pemahaman terhadap pola curah hujan dan faktor penyebabnya sangat penting dalam merancang strategi adaptasi dan mitigasi perubahan iklim yang efektif di Indonesia.

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