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All Journal International Journal of Applied Sciences and Smart Technologies Physics Communication Jurnal Natural Lontar Physics Today JIPI (Jurnal IPA dan Pembelajaran IPA)
Rini, Nur Widya
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Neuroscience Physics

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Lagrangian Equation of Coupled Spring-Pendulum System Rini, Nur Widya; Saefan, Joko; Khoiri, Nur
Physics Communication Vol 7, No 1 (2023): February 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i1.40771

Abstract

A coupled spring-pendulum system in a conservative field was studied where the equation of motion of the system using Lagrangian and Hamiltonian equation were obtained. The equation of motion represented by a second-order differential equation from the three generalized coordinate were used. The potential energy equal to zero when the system is in its equilibrium position. The generalized coordinate that being used were the angle of the first pendulum θ_1, the angle of the second pendulum θ_2, and the increase in the length of the spring x. The resulting equation of motion can be used to determine the dynamics behavior of the system at any time. Students' understanding is expected to be more complete by providing a procedure to derive the Lagrangian equation of motion.
Development of LaTeX Book Template for Submitting Assignments to Support Paperless Movement Saefan*, Joko; Rini, Nur Widya; Marianti, Aditya; Rahayuningsih, Margareta
Jurnal IPA & Pembelajaran IPA Vol 8, No 3 (2024): SEPTEMBER 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v8i3.39393

Abstract

Paperless movement is a conservation effort. This refers to transitioning from conventional paper-based processes to replacing them with digital alternatives. The paperless movement has been globally implemented in various sectors, ranging from the corporate world to the educational sector. This movement is still little applied as a student's monumental work. This research aims to develop a book template using LaTeX for submitting assignments in the Computational Physics course. This template is designed to support the paperless movement as a conservation effort. We designed and developed a platform based on available LaTeX templates and then adapted it to the needs of computational physics courses. Instructions for using this template were also created and disseminated in learning classes. Next, we apply this template as a medium for collecting assignments and don't forget to ask students for responses regarding the use of this template. The outcome of the research is a book template that has already been used in the class. The students were very enthusiastic about learning the LaTeX program and they have been using it for document writing, especially related to mathematical equations. We hope that the development of this book template that we have carried out can become one of the conservation efforts in learning classes.
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.
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.
Co-Authors Aditya Marianti Joko Saefan Margareta Rahayuningsih Nugroho Edi K Nur Khoiri Siti Wahyuni Wawan Kurniawan