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ORBITA: Jurnal Pendidikan dan Ilmu Fisika
Published by Universitas Muhammadiyah Mataram
ISSN : 24609587     EISSN : 26147017     DOI : https://doi.org/10.31764/orbita.v8i2.10197
Core Subject : Science, Education,
Education Physics
ORBITA: Jurnal Kajian, Inovasi, dan Aplikasi Pendidikan Fisika invites and welcomes the submission of advanced research and review papers, innovations and developed selected conference papers that have never been previously publicized. This journal provides publications and a forum to the academics, scholars and advanced level students for exchanging significant information and productive ideas associated with all these disciplines. The relevant topics of the latest progressive findings or developments will be taken seriously into consideration, the topics covered by the journals include: Physics Education : Physics learning innovation; Physics learning methods, models, and approaches; Physics learning media; ICT in Physics learning; Physics learning evaluation and assesment; Etnophysics. Ecophysics Applied Physics : Theoretical and computational physics; Instrumentation physics; Geophysics; Material Physics; Biophysics and Medical Physics.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol 11, No 1 (2025): May" : 6 Documents clear
Acoustic characterization of Abaca Wool as a natural sound absorber: experimental and simulation approach Mafaz, Bilqia; Zainuri, Mochamad
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.31065

Abstract

The increasing environmental and health concerns associated with synthetic sound-absorbing materials such as rockwool and fiberglass—due to their non-biodegradable nature and potential respiratory hazards—have prompted the exploration of sustainable alternatives. This study introduces Abaca-wool, a bio-based acoustic material derived from abaca banana fibers (Musa textilis) engineered to mimic the structure of mineral wool. The research aimed to evaluate the acoustic performance of Abaca-wool through both experimental measurements and numerical simulations, while examining the influence of fiber morphology on sound absorption. The fabrication process involved alkaline treatment with 15% NaOH, followed by sequential wet and dry refining to produce a randomly entangled, porous structure. Microscopic analysis revealed micro-diameter fibers and high porosity (~93%), which are critical for enhancing viscoelastic interactions between air particles and fiber walls. Key physical parameters—density and airflow resistivity (64.117 kPa·s/m²)—were measured to support numerical modeling using AFMG SoundFlow. Experimental results using the two-microphone impedance tube method showed high absorption coefficients, peaking at 0.89 at high frequencies and 0.83 at around 1000 Hz. The observed performance is attributed to optimized fiber morphology, which facilitates energy dissipation through friction and acoustic scattering. Numerical simulations exhibited good agreement with experimental data, with minor deviations linked to the homogeneous assumptions in the model. Overall, Abaca-wool demonstrates excellent potential as a biodegradable, low-density, and high-performance acoustic material, offering a viable and environmentally responsible alternative to conventional synthetic absorbers.
Development of a flipbook-based e-module using case study method in applied physics for civil engineering at Politeknik Negeri Nunukan Rahmawati, Lusy; Anggini, Canda Putri; Syarifudin, Syarifudin; Anandita, Aulia Silvina; Utami, Vina Bekti
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.30860

Abstract

This study aims to develop and assess the feasibility of a flipbook-based e-module using the case study method for the Applied Physics course in the Civil Engineering for Urban Infrastructure Study Program at Politeknik Negeri Nunukan. The motivation behind this development stems from the absence of structured and contextual learning materials aligned with the 7th Main Performance Indicator (IKU 7), which emphasizes collaborative and participatory learning through project or case-based approaches. The research employed a Research and Development (R&D) approach using the 4D model Define, Design, Develop, and Disseminate although this study was limited to the Develop stage. Validation was carried out by material and media experts, while student feedback was gathered from a limited trial involving 22 first-semester students. The results of expert validation yielded an average score of 3.63 (91%), and student responses showed a mean score of 3.50 (88%), both categorized as "very feasible." Suggestions from experts led to several revisions, such as the addition of construction-related illustrations, real-world physics applications, glossaries, and enhancements in visual presentation. The e-module integrates case studies relevant to civil engineering projects, thereby enabling students to apply physics concepts in practical contexts. Furthermore, the flipbook format was found to increase interactivity and student motivation. The findings indicate that the flipbook-based e-module is a viable instructional medium that supports innovative learning strategies, enhances conceptual understanding, and aligns with institutional goals for quality education in technical fields.
Design and validation of a diagnostic test instrument for identifying misconceptions in basic physics Zahriah, Zahriah; Annisa, Fera; Ahmad, Nur Hidayah Binti; Fahira, Adinda
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.27782

Abstract

Misconceptions are a classic problem experienced by students in learning which can affect academic achievement, and difficulty understanding advanced physics concepts, and this has the potential to inherit the same mistakes when students become teachers. The unavailability of instruments to identify misconceptions makes it difficult for lecturers to explore student misconceptions, so it is necessary to develop a set of diagnostic test instruments. This research aims to design and test the feasibility of a three-level diagnostic test instrument which will then be used as a tool to identify student misconceptions in the Basic Physics course. This research method is research and development (R&D) of the Plomp model with stages: 1) preliminary investigation, 2) design, 3) realization/construction, 4) testing, evaluation, and revision, and 5) implementation. Data collection techniques use questionnaires and tests, with research instruments in the form of validation sheets and diagnostic test questions. The content validity data analysis technique uses a percentage scale of feasibility categories based on expert judgment and construct validity testing using item analysis software version 2.03. The results of testing the feasibility of the diagnostic test instrument in terms of content validity obtained an overall percentage of 97.21%, while the construct validity test found that 75% of the questions were suitable for use. Thus, it can be concluded that the diagnostic test instrument that has been designed is suitable for use and makes a significant contribution to identifying student misconceptions, as well as helping to improve the quality of education, especially in physics learning, and supporting better academic goals.
Mapping drought prone areas using the weight overlay method in Serang Regency Sania, Annidatus; Ruhiat, Yayat; Denny, Yus Rama
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.30326

Abstract

This research aims to analyse or estimate drought vulnerability in Serang Regency. The background of this research is based on areas that often experience moderate and even high levels of drought. The research method used is quantitative by using rainfall parameters, soil type parameters, and land use parameters which are then put together using the overlay method to obtain drought vulnerability areas in Serang Regency. Based on the results of the research, there are areas with low, medium, and high levels of drought vulnerability. The area with the largest drought vulnerability in Serang Regency is at the medium level of vulnerability. The results of the map analysis of the level of drought vulnerability indicate that there is a relationship between each parameter, with most of the drought vulnerability being influenced by several factors, including rainfall, soil type, and land use.
The influence of using context-based optical instrument e-modules on the scientific literacy of class XI MIPA students at SMAN 12 Padang Meysi, Nur Afrianti; Desnita, Desnita; Mufit, Fatni; Emiliannur, Emiliannur
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.28799

Abstract

Since scientific knowledge is the foundation of daily living in the twenty-first century, science literacy is a crucial ability for pupils. But the level of scientific literacy of some students in Indonesia is still low. The test results at SMAN 12 Padang showed that pupils’ level of science literacy wa really low. The fact that instructors’ instructional resources are still not geared toward improving students’ science literacy is one of the reasons why science literacy remains low. One way to increase science literacy is to use context-based physics learning e-modules that are able to connect science concepts with real everyday topics or problems. This research seeks to determine the effects of utilizing optical instrument e-modules on the science literacy of class XI students of SMAN 12 Padang. This study used a control group in a quasi-experimental setup that is only tested after the test. The participants in this study were SMAN 12 Padang class XI Mipa students. The sampling process used the purposive sampling technique. The sample in this study was 35 students of class XI Mipa 3 and 36 students of class XI Mipa 4. The study’s findings come from the science literacy abilities of the students. Aspects of students' science literacy skills include science competencies, knowledge, context, and attitudes. Data collection was carried out by descriptive tests of 11 questions and questionnaires. The instruments utilized in this investigation were written tests in the form of questionnaires and descriptive inquiries. The hypothesis test’s findings yielded a computed tvalue = 4.007 and a t table value = 1.995 at a significance level of α = 0.05. Because the hypothesis is accepted at a significance level of 0.05. Considering the outcomes, it can be said thet using e-module optical instruments has a beneficial influence on the scientific knowledge of class XI Mipa students of SMAN 12 Padang.
Exploration of physics principles in bola rai' design based on local knowledge Fajriyani, Fajriyani; Anugra, Novia; Fadila, Fadila; Putri, Amelia
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.31672

Abstract

Exploration of Physics Principles in Bola Rai' Design Based on Local Knowledge. This study aims to explore the application of physics principles in the design of Bola Rai’, a floating house constructed based on local knowledge of the community around Lake Tempe. The research employs a qualitative descriptive approach, utilizing interviews, observations, and documentation techniques in Dusun Salomate, Limpomajang Village, Soppeng Regency. Primary data from interviews and observations were supplemented with secondary sources from literature. The analysis reveals that the design of Bola Rai’ applies physics principles such as Archimedes' principle, hydrostatic pressure, weight, and pressure within the raft structure. Additional physics concepts are applied to the house’s pillars, including weight, Newton's laws, and pressure. The walls demonstrate principles of aerodynamics, heat transfer, thermal conductivity, and Pascal’s law, while the roof structure incorporates principles of pressure, weight, and thermal conductivity. The study concludes that physics principles have been effectively integrated into the design of Bola Rai’ through the adaptation of local knowledge, suggesting its potential as a source for contextual physics learning.

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