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All Journal Jurnal Penelitian dan Pembelajaran Fisika Jurnal Pendidikan IPA Indonesia Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Science and Technology Indonesia JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) Momentum: Physics Education Journal JURNAL EKSAKTA PENDIDIKAN (JEP) JPF : JURNAL PENDIDIKAN FISIKA JURNAL PENDIDIKAN TAMBUSAI International Journal of Educational Dynamics (IJEDS) Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Lentera Pendidikan Pusat Penelitian LPPM UM Metro JURNAL PENDIDIKAN MIPA Pelita Eksakta Jurnal Ilmiah Profesi Pendidikan Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika YASIN: Jurnal Pendidikan dan Sosial Budaya Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Innovative Physics Teaching (JIPT) Physics Learning and Education Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Experimental and Applied Physics Inventa: Journal of Science, Technology, and Innovation
Ratnawulan .
Departement Of Physics, Universitas Negeri Padang, Padang, 25132, Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Pembuatan E-Modul Berbasis PBL Disertai Computer-based Tutorial Problem Solving untuk Meningkatkan Pemahaman Konsep Siswa Rosa Ayuni Utami; Hidayati, Hidayati; Ratnawulan, Ratnawulan; Selma Riyasni
JURNAL PENDIDIKAN MIPA Vol. 14 No. 4 (2024): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v14i4.2031

Abstract

Penelitian dilaksanakan pada 10 September 2024 sampai dengan 8 Oktober 2024 bertujuan untuk mengembangkan e-modul berbasis PBL disertai computer-based tutorial problem solving. Dalam penelitian ini, model Plomp digunakan sebagai model pengembangan. Model Plomp terdiri dari tiga tahap: penelitian awal, pengembangan/pembuatan prototipe, dan penilaian. Pada penelitian ini dibatasi pada tahap kedua uji validitas. Teknik pengambilan data dilakukan dengan menggunakan instrumen penilaian e-modul oleh 3 ahli validator produk. Indikator penilaian e-modul yaitu substansi materi, tampilan komunikasi visual, struktur e-modul, pemanfaatan software, penilaian e-modul berbasis PBL, dan penilaian pemahaman konsep. Hasil uji validitas menunjukkan bahwa pemahaman konsep siswa ditingkatkan dengan e-modul berbasis PBL yang disertai computer-based tutorial problem solving memiliki nilai 0,93 dengan kategori valid. Berdasarkan temuan ini, E-modul dapat dilanjutkan ke fase pengujian berikutnya.
Technical Guidance on Creating Digital Formative Assessments to Support the Implementation of the Merdeka Curriculum for Teachers at SMAN 1 Lubuk Sikaping emiliannur, Emiliannur; Ratnawulan, Ratnawulan; Doni, Rahma
Pelita Eksakta Vol 8 No 2 (2025): Pelita Eksakta, Vol. 8, No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol8-iss2/276

Abstract

Current technological advancements are driving changes in assessment practices. The teachers at SMA N 1 Lubuk Sikaping have not yet optimally implemented digital formative assessments. The Community Partnership Program in the form of technical guidance on creating digital formative assessments to support the implementation of the Merdeka Curriculum is needed by the teachers at SMA N 1 Lubuk Sikaping. This activity aims to motivate and assist Physics teachers in continuously improving their competencies, particularly in knowledge. This community service activity in the form of mentoring uses a method that consists of several stages. The first stage is the preparation stage, the second stage is the guided and independent activity stage, and the third stage is monitoring. This activity received a positive response from the participants, namely the teachers of SMA N 1 Lubuk Sikaping, with more than half of the participants stating that the training was interesting, beneficial, and effective.
VALIDITY ANALYSIS OF STEM-BASED E-LWS WITH PBL MODEL ON MOTION KINEMATICS MATERIAL TO SUPPORT CRITICAL THINKING SKILLS OF SENIOR HIGH SCHOOL STUDENTS Wedy, Zahra Salsabila; Ratnawulan, Ratnawulan; Desnita, Desnita; Yumna, Hayyu
PILLAR OF PHYSICS EDUCATION Vol 18, No 2 (2025)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/17505171074

Abstract

This research is motivated by the rapid development of technology from various fields, one of which is in the field of education. In the world of education, this technology has an important role in the continuity of the learning process. The use of electronic-based teaching materials is one of the utilization of technology in the learning process. One of the teaching materials that can be used is the Electronic Learner Worksheet (E-LWS). The purpose of the research is to make STEM-based electronic student worksheets with PBL models on motion kinematics material to support the critical thinking skills of SMA/MA students. The creation of Learner Worksheets is expected to be not only valid in terms of content and structure but also effective in facilitating a more meaningful learning experience for students. This research used the Research and Development (R&D) method. The validation process was carried out by three physics lecturers from Padang State University (UNP). Analysis of the results of the validation instrument showed that the developed Learner Worksheet obtained a validation score of 0.95. The score obtained is included in the "valid" category. Therefore, the product made in this study STEM-based Learner Worksheets with PBL model is considered valid and suitable for use as one of the innovative teaching materials to support students' critical thinking skills in understanding motion kinematics material.
Pengaruh Pelapisan Nanokomposit SiO₂–TiO₂ dan PANI pada Kain Tekstil terhadap Nilai Sudut Kontak Fadila Saputri; Ratnawulan, Ratnawulan
Journal of Science, Technology, and Innovation Vol 1 No 2 (2025): December: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/epfhe281

Abstract

This study investigates the effect of SiO₂–TiO₂ nanocomposite coating with polyaniline (PANI) addition on the wettability properties of textile fabrics. The research was conducted through a laboratory-scale experimental approach by applying nanocomposite coatings onto textile substrates using the dip-coating method. Calcination temperatures of 600°C, 700°C, 800°C, and 900°C were employed to evaluate the influence of thermal treatment on surface characteristics. Wettability performance was assessed by measuring water contact angles before and after twenty washing cycles to determine coating durability. The results indicate that all coated fabrics exhibited hydrophilic behavior, characterized by contact angles below 90°, demonstrating enhanced surface affinity toward water. Variations in calcination temperature significantly affected the contact angle values, reflecting changes in surface structure and chemical properties of the nanocomposite layer. After repeated washing, a decrease in hydrophilic performance was observed, suggesting partial degradation or detachment of the coating layer. The presence of PANI, which contains polar functional groups, is considered to contribute to improved surface wettability. Overall, the SiO₂–TiO₂/PANI nanocomposite coating shows potential for functional textile applications requiring controlled hydrophilic properties, although further optimization is necessary to improve long-term stability.
Pengaruh Konsentrasi Nanokomposit SiO₂–TiO₂/PANI terhadap Morfologi Permukaan pada Kain Katun Intan Puti Maharani; Ratnawulan, Ratnawulan
Journal of Science, Technology, and Innovation Vol 1 No 2 (2025): December: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/nvbbbp47

Abstract

This study investigates the effect of SiO2–TiO2/PANI nanocomposite concentration on the surface morphology of cotton fabrics relevant to self-cleaning performance. A controlled laboratory experiment was conducted using four compositional ratios, while TiO2 content was fixed to isolate the structural role of SiO2 and PANI. Nanocomposites were synthesized via a sol–gel route, deposited by dip coating, and characterized using SEM combined with quantitative image analysis. The results demonstrate a systematic morphological evolution from relatively homogeneous, fine particle distributions to coarser and more agglomerated structures as PANI concentration decreased. Particle size distributions ranged predominantly between 40–90 nm, with higher PANI fractions promoting dispersion uniformity and reduced surface roughness. Increasing SiO2 dominance intensified particle growth and agglomeration, indicating altered interfacial interactions within the composite layer. Comparative analysis with prior studies confirms that oxide–polymer balance governs micro–nano architecture on textile substrates. These findings elucidate composition–structure relationships critical for optimizing functional textile coatings
HOTS Assessment Development to Assess High School Physics Problem-Solving Skills Veni Wahyuni; Ratnawulan; Fatni Mufit
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12880

Abstract

This study aims to develop an assessment instrument based on Higher Order Thinking Skills (HOTS) to assess high school students' problem-solving abilities in the subject of physics on renewable energy using the Plomp development model. The study was conducted through three main stages, namely (1) preliminary research to analyze needs (2) prototyping phase to design and validate the assessment instrument, and (3) assessment phase to conduct limited trials and product revisions. The assessment instrument was developed by containing essay questions based on real contexts that require critical, analytical, and creative thinking skills. The results of expert validation showed that the assessment was in the valid category with an average percentage score of 0.93. Trials on high school students showed that the assessment was able to measure variations in problem-solving abilities more comprehensively. Thus, this HOTS assessment based on the Plomp model is effective for evaluating physics problem-solving abilities.
Needs Analysis for Developing Critical Thinking–Integrated Electronic Worksheets on Particle Dynamics at the Undergraduate Level Intan Purnama Yani; Ratnawulan; Ahmad Fauzi; Emiliannur
Jurnal Penelitian Pendidikan IPA Vol 12 No 3 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i3.14284

Abstract

Particle Dynamics learning requires higher-order thinking skills, particularly critical thinking skills. However, many students still experience difficulties in analyzing problems and drawing appropriate inferences related to physics concepts. This study aims to analyze undergraduate students’ critical thinking skills profiles and examine the need for developing electronic student worksheets (E-Student Worksheets) for Particle Dynamics learning. A quantitative descriptive approach with a descriptive exploratory design was employed. The participants were 61 undergraduate students from a Physics Education program who had completed or were currently taking the Basic Physics course. The participants were selected using purposive sampling because they had prior exposure to Particle Dynamics concepts, making them suitable for critical thinking skills assessment and needs analysis. Data were collected using two instruments: a critical thinking skills test and a needs analysis questionnaire. The critical thinking skills test consisted of open-ended physics problems designed based on Facione’s framework of critical thinking indicators, including interpretation, analysis, evaluation, explanation, and inference. Descriptive statistical analysis using mean scores and percentages was applied to analyze the data. The results indicate that students’ critical thinking skills are generally low, with average scores ranging from 35 to 39 across all indicators, particularly in the areas of analysis and inference. Furthermore, the needs analysis results show that all indicators related to instructional material development fall within the “Needed” category (61–80%), supported by students’ high digital engagement. These findings imply that instructional materials should be designed to provide structured guidance that facilitates students’ reasoning processes in solving Particle Dynamics problems. Therefore, the development of critical thinking–integrated electronic student worksheets is considered urgent and has strong potential to improve the quality of Particle Dynamics learning at the undergraduate level
Human Resources Training in Welcoming the Digitalization of Administration System in Batu Bulek Village, West Sumatra Desnita desnita; ratnawulan ratnawulan; asrizal asrizal; akmam akmam; ahmad fauzi; fatni mufid
Pelita Eksakta Vol 9 No 1 (2026): Pelita Eksakta, Vol. 9, No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol9-iss1/318

Abstract

Along with the advancement of the times and the demands for integrated, unified, and fast services, the Regional Government has issued a digital government management system policy at the village level. However, its management has not been optimal at the Batu Bulek Village Head's Office, North Lintau Buo District, Tanah Datar Regency, West Sumatra. The first problem is the limited capacity of village government human resources to manage the ADM system and digital services. This community service activity aims to provide mentoring and coaching to improve the capacity of Batu Bulek Village government human resources to manage the village digital system. Mentoring and coaching are carried out by providing training to village officials, especially on the introduction and how to use the village website. The results of the community service show that the human resource capacity of village officials has increased, especially in managing the Batu Bulek village website.
Pengaruh Suhu Pemadatan terhadap Stabilitas Marshall pada Aspal Hibrida Self-Healing Hidrofobik Yosef Aryawanda; Ratnawulan, Ratnawulan
Journal of Science, Technology, and Innovation Vol 1 No 3 (2026): : April: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/5b123x61

Abstract

This study examines the influence of compaction temperature on Marshall stability in hydrophobic self-healing hybrid asphalt using a quantitative laboratory experimental approach. The asphalt mixture was formulated with penetration grade 60/70 binder and standard aggregates, modified by nanosilica to enhance hydrophobic characteristics and Escherichia coli as a biological self-healing agent. Compaction temperatures of 180°C, 185°C, and 190°C were evaluated alongside a 150°C control sample without modification. The results indicate a non-linear relationship between temperature and mechanical performance, with stability increasing to an optimum condition at 185°C before declining at higher temperatures. This trend reflects improved densification and aggregate interlocking at moderate temperatures, while excessive heat reduces binder effectiveness due to softening. Volumetric parameters further demonstrate that optimal temperature conditions contribute to balanced void distribution and improved binder efficiency. Additionally, the hybrid system exhibits multi-scale interactions between nano-modification and microbial healing mechanisms, enhancing durability and resistance to environmental factors. These findings emphasize the importance of precise thermal control in optimizing both structural integrity and functional performance of advanced asphalt materials.
Sintesis dan Karakterisasi Material Beton Hidrofobik dan Self Healing Berbasis Mikroorganisme Yulia Maulida; Ratnawulan; Riri Jonuarti; Harman Amir
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.5841

Abstract

The high water absorption of concrete causes the concrete to easily experience cracking and damage. One way to increase the durability of concrete is by adding microbes which can fill the micro cavities in the concrete with the resulting Calcium Carbonate (CaCO3) deposits. However, the weakness of using microorganisms is that they are unable to withstand high hydration heat. Therefore, by varying the temperature in this research, it is possible to determine the effect of the metabolism of the bacteria produced. This research was carried out to avoid damage by creating a hydrophobic and self-healing layer which helps increase the durability and strength of the concrete. The concrete sample made resembles a cube measuring 5 cm x 5 cm x 5 cm. The manufacturing materials are Portland cement, Otawa sand, distilled water and a mixture of E. coli bacteria. Heating was carried out using an oven at temperatures of 30, 60, 90, and 120 oC. Characterization testing was carried out using a Cpmreson machine, XRD and contact angle testing.
Co-Authors - Hamdi Abdul Aziz Adilla, Rika Afrilla, Sonya Ahmad Fauzi Ahmad Fauzi Ahmad Fauzi aisyah fadillah Akmam Akmam Al Naim, A. F. Almunazar, Fauziyah Amelia Roza Haqu Amirullah, Fajar Fikri Anisa Janna Anisa Surya Annisa Kurniawati Aprianti, Rika Aria Ulfa Aris Alfikri Arni Sopianti Asri Devialita Asrizal Asrizal - Betty Mizarwan Bizar al furqan Dafri Zaldi Dani Gustaman Syarif Delianis Pringgenis Desnita Desti Yuspita Sari Deswita, Pipi Devana Dhiya Purnama Sari, Salsabila Dian Septiana Dila Juliawati Djusmaini Djamas Doni, Rahma Dwi Putri Ramadhani Elvira Diana. S Emiliannur Emiliannur Emiliannur Ernita Susanti Ernmaniati Ramli Fadhila Ulfa Jhora Fadila Saputri Fadli M Fanny Rahmatina Rahim Faridah Lisa Supian Fatni Mufid Fatni Mufit Fatni Mufit Fauzi Ahmad Muda Fauziyah, Faadhilah Febriona, Fhica Febriya, Dhea Fitri, Hidayatul Forni, Francesca Fran Surya Andi Fuad Sofaturahman Gusnedi Gusnedi Gusnedi Gusnedi Gusnedi Gusnedi Gusnedi, - Gusriandi, Dedi Gustaman Syarif Gusti, Dian Arima Gustika Yonanda Hamdi Rifai Hardina, Yuli Harman Amir Hayyu Yumna Hidayat, Zaitul Hidayati Hidayati Hidayati Hidayati Hidayatul Lisma, Rahmi Hosman, N. J. Hufri Hufri I Made Arnawa Idam Arif Ilahi, Fitratul Intan Purnama Yani Intan Purnama Yani Intan Puti Maharani Ipal Ipal Irna Humairah Ismira, Ismira Izzati Salsabilla Madina Jasmine, Alifa Jhora, Fadhila Jhora, Fadhila Ulfa Kharisma Marta Judenta Korry Nilyani Lailatul Rahmi Lathifa Zonesya Putri Letmi Dwiridal Letmi Dwiridal Lia Rifka Septiana M. Bayu Ihsan Maharani Erika Putri Maharani, M Maritza Syalsabilla Masril Masril Mayasari, Tantri Mira Syuriyani Mohd Azmi, M. S. Muhammad Ridwan Azizi Mutiara Kusuma Febriwanti nabila aulia rahma Nadia Raisa Aryani Nadiyyah, Khoirotun Najmiatul Fajri Naspin, Desi Ariyanti Nessa Aqila Novella Febriana Nur Azizah Nurhabibah Nasution Nurhayati Nurhayati PAT, Anggi Angelina PAT Angelina Putri Dwi Sundari Putri, Sri Fany Mulya Rahima Syabrina Sarmi Rahmad Efendi Rahmat Hidayat Rahmat Hidayat Rahmat Hidayat Raisa, Nadia Ramadhani, Dinda Ramli Ramli Renol Afrizon Renold Fernanda Retna Junia Rifka, Lia Riri Camara Putri Riri Jonuarti Riri Jonuarti Riri Yandari Rita Iranie Riyasni, Selma rizka fauziah Rizki Fernanda Rosa Ayuni Utami Rosi Selfia Putri Santika, Viera Alvio Saputri, Ririn Hustia Sarimai Sarimai Sarmi, Rahima Syabrina Septia, Zahwa Silvi Yulia Sari Sinthia Dwi Jayanti Sisi Gusti Putri Sofaturrohman, Fuad Suherman, Dea Stivani Sumanti, Syahputri Supian, F. L. Syafri Syafri Syafriani Syafriani Syafriani Syafriani, - Syahputra , Ilham Syakbaniah Syakbaniah Syalsabilla, Maritza Syuriyani, Mira Tasmiyatul Iffah Tho, S. W. Triana Dwi Restika Trisia Meidini, Ella Ulfa Jhora, Fadhila Ulfa Jhora, Fadhilla Ulfa Jhora, Fadila Urwatil Wuskha Usmeldi Usmeldi Vauzia, Vauzia Veni Wahyuni Veni Wahyuni Vonny Tinedi Wardatul Ullya Wedy, Zahra Salsabila Widiasih, Widiasih Witriani Marvinatur Ihsan Wong, Y. Y. Yanna, Fitri Yedho Syahadha Yenni Darvina Yola sri Wahyuni Yolla Octriany Yosef Aryawanda Yulia Maulida Yuliani, Kurnia Dwi Yulianti, Lastri Yuliza Noerman, Kiki Yulkifli Yulkifli Yurnetti Yurnetti Zaitul Hidayat Zakirman Zaturrahmi Zaturrahmi Zoni, Muhammad Ari Zulhendra Zulhendra Zulhendri Kamus