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All Journal Jurnal Pendidikan Fisika Jurnal Penelitian Pendidikan IPA (JPPIPA) Spektra: Jurnal Fisika dan Aplikasinya Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Jurnal Kajian Ilmu Pendidikan (JKIP) Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora INPAFI (Inovasi Pembelajaran Fisika) JURNAL ISIP VOICE : Jurnal Ilmu Sosial dan Ilmu Politik Journal of Citizen Research and Development JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Al-Musannif
Dewi Wulandari
Jurusan Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Negeri Medan, Jalan Willem Iskandar Pasar V Medan 20221, Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Other

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Analisis Teori dan Aplikasi Efek Dzhanibekov pada Dinamika Rotasi Benda Tegar: A Systematic Literature Review Azmi Mustafa; Devi Khairina; Reivira Arafah; Malik Alfatah Sembiring; Dewi Wulandari; Juniastel Rajagukguk
Jurnal Kajian Ilmu Pendidikan (JKIP) Vol. 7 No. 5 (2026): Jurnal Kajian Ilmu Pendidikan (JKIP)
Publisher : Lembaga Riset dan Inovasi Almatani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55583/jkip.v7i5.2566

Abstract

Efek Dzhanibekov, juga dikenal sebagai Theorem Bola Sepak Tennis, adalah fenomena ketidakstabilan rotasi yang terjadi pada benda tegar triaksial dengan momen inersia menengah ketika berotasi di sekitar sumbu. Karena fenomena ini menunjukkan keterbatasan model konservatif yang dikembangkan melalui persamaan Euler klasik, itu menjadi salah satu topik penting dalam dinamika benda tegar. Tujuan penelitian ini adalah untuk menyelidiki evolusi teori dan aplikasi Efek Dzhanibekov. Data dikumpulkan dari buku mekanika klasik dan artikel ilmiah internasional yang diterbitkan antara tahun 2024 dan 2025. Identifikasi, seleksi, ekstraksi, dan sintesis hasil penelitian yang relevan adalah cara analisis dilakukan. Hasil penelitian menunjukkan bahwa persamaan Euler klasik dapat menjelaskan fenomena pembalikan orientasi dan ketidakstabilan sumbu tengah, tetapi belum dapat menjelaskan relaksasi precession. Studi baru menunjukkan bahwa mekanisme difusi orientasi internal, yang merupakan mekanisme disipasi internal yang paling penting dalam mengarahkan sistem ke keadaan stabil yang membutuhkan energi minimal. Fenomena Dzhanibekov juga ditemukan pada sistem bandul elastis yang memiliki karakteristik dinamika yang lambat dan cepat. Ini menunjukkan bahwa fenomena ini berlaku secara universal. Ketidakstabilan sumbu tengah digunakan dalam teknologi antariksa untuk melakukan reorientasi satelit tanpa propelan dengan mengontrol tensor inersia. Selain itu, dalam bidang astrofisika, Efek Dzhanibekov digunakan untuk menjelaskan aktivitas magnetar melalui mekanisme gaya Euler yang menghasilkan semburan sinar-X dan gelombang gravitasi. Kajian ini menunjukkan bahwa, dari konsep mekanika klasik, Efek Dzhanibekov telah berkembang menjadi fenomena yang mencakup berbagai disiplin ilmu, dan memiliki dampak yang signifikan pada fisika modern, teknologi antariksa, dan astrofisika.
PENGARUH PEMBELAJARAN INKUIRI ILMIAH BERBANTUAN SIMULASI ALGODOO TERHADAP PENCAPAIAN KETERAMPILAN PROSES SAINS DAN HASIL BELAJAR SISWA Marshal Adrianus Panggabean; Dewi Wulandari
INPAFI (Inovasi Pembelajaran Fisika) Vol. 13 No. 2 (2025): INPAFI
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/inpafi.v13i2.49013

Abstract

This research is a quasi-experimental research with a two-group pretest-posttest design. The sample of this research is class X MIPA 2 taught with Scientific Inquiry learning assisted by algodoo simulation and class X MIPA 3 taught with conventional learning. The instruments used consisted of learning achievement test instruments and science process skills observation instruments. The results showed that: (1) Students science process skills in the subject matter of momentum and impulse using Scientific Inquiry learning assisted by algodoo simulation obtained an average of 71,2. (2) Students science process skills on the subject matter of momentum and impulse using conventional learning obtain an average of 65,4. (3) Student learning outcomes on the subject matter of momentum and impulse using the Scientific Inquiry learning model assisted by algodoo simulation obtain an average of 68,9. (4) Student learning outcomes on the subject matter of momentum and impulse using conventional learning obtain an average of 60,4. (5) There are differences in students science process skills due to the influence of the Scientific Inquiry learning model assisted by algodoo simulation and conventional learning. (6) There are differences in student learning outcomes due to the influence of the Scientific Inquiry learning model assisted by algodoo simulations with conventional learning.
Item Analysis of a Physics Technological Literacy Test on Work and Energy Abdul Rafid Fakhrun Gani; Dewi Wulandari; Yuni Warty
Al-Musannif Vol. 8 No. 1 (2026)
Publisher : Madrasah Tsanawiyah DDI Cilellang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65046/msn.v8i1.41

Abstract

This study aimed to develop and analyze a physics technological literacy test instrument on the topic of work and energy for senior high school students. This study addresses the limited availability of technological literacy assessment instruments specifically designed for the topic of work and energy in physics education. The research used a Research and Development (R&D) approach with the ADDIE development model, consisting of analysis, design, development, implementation, and evaluation stages. The instrument was developed based on three dimensions of technological literacy: knowledge, capabilities, and critical thinking and decision making. The study involved 200 students from several senior high schools in Binjai City, Indonesia. Data were analyzed using validity, reliability, and Rasch model analyses to evaluate the quality of the instrument. The results showed that the instrument was highly feasible, with evaluation expert validation of 92,13% and material expert validation of 90,4%. Practicality testing also indicated that the instrument was practical and easy to use. All items were categorized as valid and reliable, with a Cronbach’s Alpha coefficient of 0.935. The Rasch analysis demonstrated that the instrument could accurately measure students’ technological literacy abilities across various ability levels. The findings indicate that the developed instrument is valid, reliable, practical, and effective for measuring students’ technological literacy in physics learning, and it can serve as an assessment tool for teachers to evaluate and improve students’ technological literacy skills.
Co-Authors Abdul Rafid Fakhrun Gani Adinda Putri Sitepu Agnes Natalia Sihombing Anisa Putri Azmi Mustafa Cantika Maria W Seran Cinta Marcella Namira Devi Khairina Elisa Siregar Elisman Pangondiyan Siregar Elrisa Br Barus Enjelita Dwi Maharani Eviyona Laurante Br Barus Friska Rehulina Br Ginting Howard Situmorang Ines Julwana Telaumbanua Irham Ramadhani Julia Ivanna Juniastel Rajagukguk Lourensia Bravini Lahera M Aswin Rangkuti Malik Alfatah Sembiring Marshal Adrianus Panggabean Murni A. Situmorang Reivira Arafah Roza, Destria Rut Walle Lisna Telaumbanua Taufiq Ramadhan Amry Yul Ifda Tanjung Yuni Warty