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All Journal JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Journal of Natural Sciences and Mathematics Research Berkala Ilmiah Pendidikan Fisika Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran JITEK (Jurnal Ilmiah Teknosains) Jurnal Penelitian Pembelajaran Fisika E-Dimas: Jurnal Pengabdian kepada Masyarakat JIPF (Jurnal Ilmu Pendidikan Fisika) JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Jurnal Elektronika dan Telekomunikasi Journal of Dedicators Community AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT International Journal of Applied Sciences and Smart Technologies Physics Communication Journal of Banua Science Education Jurnal Inovasi Pembelajaran di Sekolah Jurnal Natural Lontar Physics Today JIPI (Jurnal IPA dan Pembelajaran IPA) Jurnal Fisika Physics Communication
Joko Saefan
Pendidikan Fisika, Universitas PGRI Semarang
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Public Health Social Sciences Veterinary Other

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Pendampingan Pembuatan Media Pembelajaran Virtual bagi Guru IPA SMP se-Kabupaten Semarang Khoiri, Nur; Ristanto, Sigit; Huda, Choirul; Saefan, Joko; Kurniawan, Wawan
Journal of Dedicators Community Vol 6, No 3 (2022)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdc.v6i3.2545

Abstract

One of the reasons for the lack of student learning motivation is the unavailability of learning media that can focus students' attention and help students understand science concepts. The purpose of this PKM activity is to provide assistance to science teachers in overcoming difficulties in the absence of learning media as a tool in the science learning process in junior high schools. The specific target of this PKM is to design, create and use virtual learning media for physics/science materials. The output of this activity is a physics/IPA learning media package for junior high schools. The method used in this activity is mentoring and training. Activities in this PKM are mentoring and training in designing, creating and using virtual learning media for junior high school physics/science materials. This activity was carried out for 32 hours of lessons and monitoring the use of learning media by MGMP physics/IPA teachers in Semarang Regency for 3 months. Activities that have been carried out to overcome partner problems are designing virtual learning media using several Power Point Presentation Developer software, Video Tracker, Latex and PheT. The series of activities consists of four main stages, namely media design, media creation, media use and testing of virtual learning media for junior high school physics/science materials. Junior high school physics/science teachers succeeded in making learning media using Power Point Presentation Developer and Phet on the concepts of temperature and heat
The Effect of Annealing Temperature Growth on Fe-TiO2 Thin Film Photoactivity in Methylene Blue Kaltsum, Ummi; Permatasari, Ema Chintya; Murniati, Ngurah Ayu Nyoman; Kurniawan, Wawan; Saefan, Joko
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 8 No 1 (2019): Jurnal Ilmiah pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v8i1.2967

Abstract

The purpose of this study is to determine the effect of annealing temperature growth on Fe-TiO2 thin film photoactivity. This was made by mixing TTIP, AcAc, ethanol, and Iron Nitrate Nanohydrate, after which the obtained mixture was sprayed and annealed on the substrate for two hours using the coating method. The temperature was increased to 500°C, 550°C, and 600°C, with the thin film photoactivity determined in methylene blue using UV light for 5 hours with decreasing values of COD, BOD, and absorbance. The results show annealing temperature growth increased photoactivity of the thin film. The highest photoactivity at 600°C in degrading methylene blue with decreasing values of COD, BOD, and absorbance was 19.56%, 35.84%, and 66.70%, respectively.
Instructional Tasks for Fostering Scientific Creativity in Physics Education: A Systematic Review (2020–2024) Saefan, Joko; Kurniawan, Wawan; Rini, Nur Widya
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.24435

Abstract

This systematic literature review explores research on scientific creativity in physics education published between 2020 and 2024, with a particular focus on the intersection of instructional tasks and physics topics. Using PRISMA-based identification, screening, eligibility, and synthesis procedures, 130 initial records from Scopus were narrowed to 20 eligible studies that explicitly addressed both instructional task types and physics-related content. Instructional tasks were classified into seven categories as problem finding, open-ended problem solving, creative experiment design, hypothesis generation, modeling tasks, product improvement, and interdisciplinary tasks, while physics topics were coded from domain-specific subjects to broader categories. Findings indicate a strong dominance of modeling tasks, particularly when paired with general topics, reflecting their adaptability to varied instructional contexts and alignment with STEM or STEAM frameworks. In contrast, tasks such as creative experiment design and product improvement were less represented, and domain-specific topics appeared infrequently. This pattern suggests a tendency toward flexible but generalized approaches to fostering creativity, potentially at the expense of deep disciplinary engagement. The review highlights the need to diversify instructional tasks and embed creative learning within core physics content. These insights carry implications for curriculum design, teacher professional development, and future research aiming to balance interdisciplinary breadth with disciplinary depth in promoting scientific creativity in physics education.
Pendekatan Neural Network pada Gerak Unstretch Bungee Jumping Menggunakan Metode Euler Wahyuni, Tika; Armawanto, Fardika; Faradita, Diah Ayu; Khoiri, Nur; Kurniawan, Affandi Faisal; Saefan, Joko
Lontar Physics Today Vol 2, No 3 (2023): November 2023
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v2i3.18128

Abstract

Persamaan gerak unstretch bungee jumping dapat diselesaikan secara numerik menggunakan metode Euler. Hasil penyelesaian secara numerik menggunakan Euler dapat dikatakan valid apabila metode Odeint mendapatkan hasil yang hampir sama dengan metode Euler. Setelah hasil dari metode numerik tervalidasi, sehingga dapat implementasikan pada metode neural network. Neural network dapat divariasi menggunakan berbagai epochs untuk memprediksi hasil penyelesaian secara numerik. Dengan epochs 500 didapatkan hasil yang lebih akurat dan mendekati dari hasil odeint.Kata kunci: Bungee Jumping, Solusi Numerik, dan Neural Network
Evolution of The Generalized Coordinates of Pendulum-Spring System Rini, Nur Widya; Saefan, Joko
International Journal of Applied Sciences and Smart Technologies Volume 05, Issue 02, December 2023
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v5i2.6336

Abstract

The pendulum-spring system studied using Hamilton equations consists of three generalized coordinates. The coordinates are the swing angle of the rod, the swing angle of the spring, and the length extension. In this case, the total Hamiltonian is complicated because of the complicated mechanical system. Six equations of motion are obtained from the Hamilton equations. The visualization of the generalized coordinates with respect to time is illustrated. In the visualization, the spring constant and the initial swing angle of the rod were varied. These variations obtained the harmonic and non-harmonic motion. The motion of such a complex system was usually sensitive to the initial values. Solving the mechanical problems with Hamiltonian formalism could familiarize students with a branch of physics with numerous indispensable applications to other branches.
On the dynamics of spring-pendulum system: an overview of configuration space and phase space WAHYUNI, SITI; RINI, NUR WIDYA; SAEFAN, JOKO
Jurnal Natural Volume 24 Number 1, February 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i1.33247

Abstract

The dynamics of the spring-pendulum system with two degrees of freedom were studied. The motion of this system is restricted to be in a vertical plane so that the chosen generalized coordinates are the increased length of the spring and the swing angle of pendulum . Hamiltonian of the system is obtained from the Legendre transformation of Lagrangian. Hamiltons equation yields four differential equations that represent the dynamic of the system. The obtained results were visualized in configuration space and phase space trajectories. It is shown that generally the greater the initial swing angle, the more complex pattern will occur followed by the appearance of chaotic phenomena.
Decomposition Model and Extension of Spring Pendulum Systems in the 21st Century: A Systematic Literature Review Saputra, Rangga Apriliyanto; Saefan, Joko; Siswanto, Joko
Jurnal Fisika Vol. 15 No. 2 (2025): Jurnal Fisika 15 (2) 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jf.v15i2.21764

Abstract

A spring pendulum is a mechanical system that describes the reciprocating motion of a mass suspended on a spring around an equilibrium point. The system consists of a spring with certain elasticity characteristics and a fulcrum to which the spring is attached. When the mass is pulled from its equilibrium position, the spring generates a restoring force proportional to the distance of displacement, inducing the mass to move periodically. Spring pendulum systems have seen frequent development in the design of mechanical systems that require high-precision vibration control. This study examines developments in system expansion and equation decomposition models of spring pendulums by conducting a Systematic Literature Review (SLR) of 36 pertinent articles from Scopus and Google Scholar (2000–2024). The main focus of the research lies on the expansion of the basic spring pendulum system through various modifications, which is the dominant topic in the review. The most popular technique for resolving the system's equations of motion is breaking down the equations using analytical mathematical formulations, particularly the Lagrangian method, which refers to the theoretical derivation of equations of motion through well-known mathematical frameworks like Lagrangian and Hamiltonian mechanics. The findings provide deep insights for the development of mathematical models as well as a comprehensive overview of the development of spring pendulum research. The implications of this research can contribute to innovations in engineering, physics, and other related disciplines.
Expansion of the Double Pendulum System and Its Decomposition Model: Systematic Literature Review Anisa Zulfa Nadia; Joko Siswanto; Joko Saefan
Physics Communication Vol. 9 No. 2 (2025): August 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/pc.v9i2.21721

Abstract

Double pendulum is a mechanical system that exhibits complex dynamic behavior, often used to study nonlinear dynamics and chaos. Along with the development of research, this system has been extended with the addition of several new constraints. This research aims to conduct a Systematic Literature Review (SLR) related to the extension of the double pendulum system and the formulation of the relevant equations of motion. The article search was conducted systematically, resulting in 27 documents that met the inclusion criteria. The results of the analysis show that the extension of the gantry pendulum crane system with a payload is the main focus in this study. In addition, the most frequently used decomposition model is a mathematical model with a Lagrangian approach. These findings provide deep insights for further development of mathematical models as well as their applications in the fields of robotics, system control, and dynamic structural analysis.
Implementation of Video Tracker Application for Measurement of Elastic Pendulum Oscillatory Motion Sigit Ristanto; Hafizh Aji Prakosa; Nur Khoiri; Affandi Faisal Kurniawan; Joko Saefan
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 12 No 2 (2024)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v12i2.44660

Abstract

Advances in technology have a huge impact on the development of physics, the tracker application is one example of technological developments in the field of physics that can solve problems in analysing videos of the motion of an object recorded using a smartphone. One of the motion phenomena that can be analysed using the tracker application is the oscillatory motion of an elastic pendulum. The purpose of this research to know the analysis of elastic pendulum motion in the form of oscillation trajectory and period using tracker application. The method used in this research is experimental method. The results of the analysis obtained from this research are that the oscillation trajectory of the elastic pendulum does not move the same or irregularly when oscillating, and the period that occurs in the oscillation of the x and y axes against time (t) is relatively constant.
- PENGUATAN PEMBUATAN MEDIA PEMBELAJARAN INTERAKTIF BERBASIS IT MGMP IPA BLORA: - Faisal Kurniawan, Affandi; Sigit Ristanto; Joko Saefan; Nur Khoiri
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 9 No 2 (2025): Amaliah Jurnal: Pengabdian kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v9i2.5281

Abstract

Science teachers of the Blora Regency MGMP experienced obstacles in creating IT-based learning media. The purpose of this PKM activity is to provide assistance to science teachers in creating IT-based learning media for the science learning process in junior high schools as part of teacher professional development. The methods used in this activity are socialization, workshops, and mentoring. Socialization is carried out to agree on the implementation of community service. The workshops that will be implemented include: Designing IT-based interactive learning media with a deep learning approach, Creating AI-based interactive learning media, Utilizing PheT-based interactive learning media, and implementing interactive learning media. In addition to the workshop, this community service activity also provides assistance in creating IT-based media starting from the stage of analyzing media needs, creating AI-based media, and PheT. This activity was carried out for 32 hours of lessons and monitoring the use of learning media by Blora Regency MGMP Science teachers. The results of the community service showed that all participants were able to utilize AI and PhET Simulation in preparing learning media. This was shown in the learning media that had been prepared by participants after completing the community service.
Co-Authors Aditya Marianti Affandi Faisal Kurniawan Ani Rusilowati Anisa Zulfa Nadia Armawanto, Fardika Arsini -, Arsini Arsini Arsini Baidillah, Marlin Ramadhan Choirul Huda Choirul Huda Dewi Lestari Dhara Fauziyah Aslam Duwi Nuvitalia Dwi Hidayah Ningsih Ema Chintya Permatasari Endang Susilaningsih Ernawati Saptaningrum Faisal Kurniawan, Affandi Faradita, Diah Ayu Hafizh Aji Prakosa Harto Nuroso Ismawati, Eka Yulianda Joko Siswanto Joko Siswanto Joko Siswanto Khanifah Khanifah Khilman Najib Margareta Rahayuningsih Nugroho Edi K Muhammad Farchani Rosyid Muhammad Farchani Rosyid Muhammad Farchani Rosyid, Muhammad Ngurah Ayu Nyoman Murniati Ninik Pujianti Nur Ifanis Sa'adah Nur Khoiri Nur Khoiri Nur Khoiri Nur Khoiri Nur Widya Rini Pagunanto Pagunanto Permatasari, Ema Chintya Prakosa, Hafizh Aji Pratondo Busono Putri, Dini Santika Rini, Nur Widya Ristianti, Sinta Riyanto Riyanto Saputra, Rangga Apriliyanto Sigit Ristanto Sigit Ristanto Siti Patonah Siti Wahyuni SULISTIA, SULISTIA Susilawati . Ummi Kaltsum Utami, Alifa Citra Wahyuni, Tika Wawan Kurniawan Yulinda Dwi Cahhyani