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All Journal EKSAKTA: Journal of Sciences and Data Analysis Jurnal Penelitian dan Pembelajaran Fisika JURNAL FISIKA JFA (Jurnal Fisika dan Aplikasinya) Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika JPSE (Journal of Physical Science and Engineering) Science and Technology Indonesia Jurnal Penelitian Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS Dinamisia: Jurnal Pengabdian Kepada Masyarakat Journal of Physics and Its Applications JURNAL EKSAKTA PENDIDIKAN (JEP) JURNAL PENDIDIKAN TAMBUSAI Eksakta : Berkala Ilmiah Bidang MIPA MANAZHIM Sainstek : Jurnal Sains dan Teknologi Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat 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 Indo-MathEdu Intellectuals Journal Journal of Renewable Energy, Electrical, and Computer Engineering JRFES Indonesian Journal of Physics (IJP) Physics Learning and Education Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Experimental and Applied Physics
Hamdi Rifai
Department Of Physics, Faculty Of Mathematics And Natural Sciences, Universitas Negeri Padang, Jl. Prof. Dr. Hamka, Padang,
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Preliminary Analysis of Enrichment Media Based on Physics Edupark in Cave Tourism Destination Tessa Destia Putri Lisa; Hamdi Rifai; Husna Husna; Pratiwi Ineke Anwar
Jurnal Penelitian Pendidikan IPA Vol 9 No 4 (2023): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i4.2705

Abstract

This research is a preliminary research that aims to analyze the needs in developing enrichment media based on edupark physics in cave tourism destinations. The type of research used is the research and development using the Plomp model. This research is only a preliminary research phase which consists of teacher analysis, student analysis, and potential material analysis. The data used in this study were obtained from interviews and questionnaires given to physics teacher and 68 students from class X which is combined from SMAN 1 Lareh Sago Halaban and SMAN 2 Sijunjung students. Based on this preliminary research, the results show that media in video form has advantages for: motivating students to learn, showing physical phenomena as a whole, helping to develop student’s knowledge and skills, and helping students master the physics material. Besides that, cave tourism activities can be used as a physics edupark and as an object in developing physics edupark enrichment media in the form of videos because they have many connections with physics concepts. It can be concluded that multimedia interactive in the form of video is the most suitable learning media to be used as an enrichment media based on physics edupark.
The Characterization of the Hydrophobic Surface of Nanocomposites Aloe vera/PS for Antimicrobial Pathogens Lathifa Zonesya Putri; Ratnawulan Ratnawulan; Ramli Ramli; Hamdi Rifai; Faridah Lisa Supian; Irna Humairah
Science and Technology Indonesia Vol. 8 No. 2 (2023): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2023.8.2.212-218

Abstract

The spread of pathogenic microorganisms on a large scale creates a health disaster for the world. Modifying the surface of the fabric so that it is antimicrobial pathogens with hydrophobic properties is one solution to inhibit the spread of microorganisms. Surface modification was carried out using Aloe vera powder as filler and polystyrene matrix with Aloe vera:PS composition variations of 1:5, 2:5, and 3:5 using the dip coating method and drying temperatures of 10◦C, 50◦C, and 90◦C. The characterization results that have been carried out with the best composition variations are 3:5 and 50◦C with a layered morphology using Scanning Electron Microscopy (SEM), resulting in a surface particle size of 21.243 nm, large contact angle/WCA using a Canon D350 camera with a size of 150.23◦, Fourier Transmission Infrared Analysis (FTIR) with the dominant functional group in the vibration band 2629 cm−1 indicates the presence of a long hydroxyl chain, the vibration band 1500 cm−1 with C-H stretching of the aromatic ring is caused by the characteristics of the polystyrene polymer and the wave number is 1700 cm−1 with stretching C=O which shows the characteristics of the carbonyl group in the Aloe vera sample is a flavonoid compound. The resistance of Aloe vera/PS solution to Klebsiella pneumonia resulted in a 20.18 mm diameter barrier showing strong resistance against bacteria and X-Ray Diffraction analysis showed that the AV powder was amorphous. Thus, the AV/PS 3:5 composition with a calcination temperature of 50◦C represents the greatest variation in the synthesis and characterization of hydrophobic thin films for pathogenic antimicrobial organisms.
Magnetic Susceptibility of Pumice at Mount Singgalang, West Sumatera Miftahul Arrazi; Hamdi Rifai; Fatni Mufit; Harman Amir
MANAZHIM Vol 5 No 2 (2023): AGUSTUS
Publisher : Manajemen Pendidikan Islam STIT Palapa Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36088/manazhim.v5i2.3623

Abstract

Volcanic activity produces eruptions that release pyroclastic material at the time of the explosion. Mount Singgalang is a volcano that has experienced an eruption after 1600. Several types of volcanic rocks around the Mount Singgalang area are Basalt, Andesite, Tuff Breccia, Lava Breccia, and Pumice Tuff. Pumice is formed when saturated liquid magma gas bursts like a carbonated beverage and soon cools, causing the froth that results to solidify into a glass full of gas bubbles. Some minerals contained in pumice are obsidian, cristobalite, feldspar, and tridymite. Pumice contains magnetic minerals, namely ilmenite (FeTiO3), and magnetite (Fe3O4). The purpose of this study is to quantify the magnetic susceptibility and quantity of pumice on Mount Singgalang in West Sumatera. When utilizing the Bartington Magnetic Susceptibility Meter to analyze a sample, magnetic susceptibility parameters are utilized to pinpoint the features of a magnetic rock mineral. The value of the magnetic susceptibility of pumice on Mount Singgalang, in West Sumatera has a value that varies between 2763.3 x 10-8m3/kg - 2192.1 x 10-8m3/kg. The results showed that the tested samples had antiferromagnetic magnetic mineral properties with frequency-dependent susceptibility values (χfd), indicating that all of the measured samples contained almost no superparamagnetic (SP) grains and were generally dominated by multi-domain (MD) grains.
Needs Analysis of Design for the Integrated Project-Based Learning Module at Edupark Physics Science and Technology Center Sawahlunto Adji Waskita; Hamdi Rifai
Physics Learning and Education Vol. 1 No. 4 (2023): December Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v1i4.94

Abstract

Visiting a Geopark or tourist attraction has become a lifestyle of the community, but the visit is still limited to a tourist visit and the activity is no more than to capture moments or recreation such as enjoying the beauty of nature, taking pictures, selfies, playing and others. Geoparks or tourist attractions as learning resources have not been maximally utilized, including the Sawahlunto Science and Technology Center. This research is a preliminary research that aims to analyze the needs in the development of physics edupark-based learning modules at the iptek center destination in sawahlunto. The type of research used is R&D (Research and Development) or also known as research and development using the Plomp model. This research is only a preliminary research stage consisting of teacher analysis, student analysis, and analysis of potential materials at the sawahlunto science and technology center. Data used in this study were obtained from interviews and questionnaires given to physics teachers and 30 students of class XI SMAN 13 Padang. Based on this preliminary research, the results obtained that teaching materials in the form of PjBL-based modules associated with edupark have benefits to; motivate students in learning, display physics phenomena as a whole, help develop students' knowledge and skills and help students in mastering physics material. In addition, the sawahlunto science and technology center tourism activities can be used as a physics edupark and as an object for developing teaching materials in the form of PjBL-based modules in the form of photos and videos because they have a lot to do with physics concepts. So it can be concluded that the PjBL-based learning module is a suitable teaching material if used as a physics edupark learning media.
Preliminary Analysis of the Physics Enrichment Book Design-Edupark Hot Waterboom Solok Selatan Integrated Inquiry Learning Model Sri Nilam Sari; Hamdi Rifai
Physics Learning and Education Vol. 1 No. 4 (2023): December Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v1i4.105

Abstract

Hot Waterboom Solok Selatan is one of the tourist destinations that is often visited by people on vacation. However, visits to these attractions are only for traveling, taking pictures, and playing. They do not realize that tourist attractions can also be used as learning resources. This study aims to determine the needs of teaching materials that are in accordance with the background of students and their environment. This research is a preliminary study of the research and development method using the Plomp model, which consists of student analysis, teacher analysis, and analysis of physics concepts. The data in this study were obtained from the results of needs analysis through interviews with two physics teachers and 38 students at SMAN 3 Solok Selatan. The results obtained from the students' environment, there is a tourist attraction, namely Hot Waterboom Solok Selatan. After direct observation to the tourist attraction, many physics concepts were found. From the results of the learning style questionnaire, students are more dominant visual learning style, so suitable teaching materials in the form of print media such as books. From the results of teacher interviews, the teaching materials used have not been integrated with eduparks and have not been equipped with learning models. The inquiry learning model is a model that is in accordance with the independent curriculum because learning is student centered and involves students actively discovering concepts. Based on the curriculum analysis, it is found that the physics materials on tourist attractions are not ordered, so the type of book that is suitable is an enrichment book. Enrichment book is a flexible type of book because it does not depend on the curriculum. It can be concluded that it is necessary to design a physics edupark enrichment book Hot Waterboom Solok Selatan integrated Inquiry Learning model for senior high school students.
Needs Analysis Of Physics Edupark Enrichment Book Batang Tabik Waterpark Design Integrated Problem-based Learning Kinanti, Ihsania Ikrima; Rifai, Hamdi
PILLAR OF PHYSICS EDUCATION Vol 16, No 4 (2023)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/15319171074

Abstract

In general, visitors who come to the tourist attraction only have fun and capture their vacation moments, without realizing that there are many physics concepts in every game vehicle there. This research is a preliminary research that aims to analyze the needs of physics enrichment book development for Batang Tabik Waterpark edupark integrated with problem-based learning model. The type of research used is design research using the Plomp model. This research was conducted only up to the preliminary research stage consisting of student analysis, teacher analysis, and analysis of learning materials at Batang Tabik Waterpark. The data used in this study were taken from the results of student needs analysis and interviews with one physics teacher and 30 students of class X SMAN 3 Payakumbuh. Based on the results of the study, it is known that the physics edupark enrichment book integrated with problem-based learning models can motivate students in learning; show physics phenomena as a whole; help develop students' knowledge and skills; and help students master physics material. In addition, the Batang Tabik Waterpark tourist attraction can be used as a physics education park and as an object of enrichment book development in the form of a physics edupark enrichment book integrated with problem-based learning models equipped with photos and videos because of its many links to physics concepts. So it can be concluded that the physics edupark enrichment book Batang Tabik Waterpark is a suitable enrichment book if used as a physics edupark learning media.
The Effect of Chemical Fertilizers on The Magnetic Susceptibility Value and Soil Fertility of Paddy Soils in Surantih, Kabupaten Pesisir Selatan Maidani, Delvi Putri; Rifai, Hamdi; Dwiridal, Letmi; Mufit, Fatni
JPSE (Journal of Physical Science and Engineering) Vol 8, No 1 (2023): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um024v8i12023p052

Abstract

Pesisir Selatan is a district where population depends on agriculture such as lowland rice. The rice seeds used were IR66. Efforts to improve the quality of Paddy soils seeds are fertilizing with chemical fertilizers. Chemical fertilizers used are Urea, KCL and Phonska. Continuous and excessive use of fertilizers will cause a decrease in the level of soil fertility due to the reaction between fertilizer minerals and soil minerals which also affects the magnetic susceptibility value. Based on these problems, further research was carried out to see the difference in the magnetic susceptibility value of paddy soils to the use of chemical fertilizers using the rock magnetism method with magnetic susceptibility parameters. The results showed that the paddy soil before and after being planted with rice seeds using chemical fertilizers decreased and increased the value of magnetic susceptibility due to the reaction between mineral fertilizers and soil minerals and waterlogging during the cultivation process. Meanwhile, the paddy soil before and after planting rice seeds that did not use chemical fertilizers decreased the magnetic susceptibility value quite far due to the absence of other mineral additions in the paddy soil such as chemical fertilizers.
Characteristics of the Density and Magnetic Susceptibility of Pumice from the Maninjau Caldera-Forming Eruption, Indonesia Hidayatul Lisma, Rahmi; Rifai, Hamdi; Forni, Francesca; Syafriani; Ratnawulan; Gustika Yonanda; Mutiara Kusuma Febriwanti; Nur Azizah; Retna Junia; Anisa Janna; Amelia Roza Haqu
Jurnal Geologi dan Sumberdaya Mineral Vol. 25 No. 3 (2024): JURNAL GEOLOGI DAN SUMBERDAYA MINERAL
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v25i3.889

Abstract

Abtract- Lake Maninjau is a volcanic caldera formed by a volcanic eruption located in West Sumatra. This volcanic eruption threw pyroclastic materials, one of which is pumice, as far as ± 75 km from the center of the eruption. This study aims to determine density and magnetic susceptibility characteristics of pumice from maninjau caldera-forming eruptions, indonesia. The method used is the rock-magnetic method. It is used to measure magnetic susceptibility based on the distribution of volcanic material. The samples were selected from 3 different locations around Mount Maninjau with distances varying between ±12-32 km. A Bartington Magnetic Susceptibility Metre Type B (MS2B) instrument was utilised to determine the susceptibility of rocks and X-ray fluorescence (XRF) to identify rock element levels. The results of the data analysis obtained have magnetic density and susceptibility values in the NGS (Ngarai Sianok) area, which ranged from 0.67-1.77×103 kg/m3 and 4.4-826×10-8m3/kg, the LBS (Lubuk Basung) area which ranged of 0.74-1.34×103 kg/m3 and 6.6-625.4×10-8m3/kg, and the PRM (Pariaman) area, which ranged from 0.68-3.63×103 kg/m3 and 8-359×10-8m3/kg. The results showed that when sampling closer to Mount Maninjau, the pumice is characterized by dense, fresh, but very small pore size and dominated by slightly greyish white pumice with few white crystals on its surface. Therefore, the location of the pumice from Mount Maninjau has a significant influence on its characteristics, including density, magnetic susceptibility, and iron (Fe) and titanium (Ti) content. Keywords: Pumice, Density, Magnetic Susceptibility, Mount Maninjau, XRF
THE VARIATIONS OF CLINKER SUPERPARAMAGNETIC VALUE FROM PT. SEMEN PADANG BY USING A BARTINGTON MAGNETIC SUSCEPTIBILITY METER SENSOR TYPE B rina, rina novita; Rifai, Hamdi; Dwiridal, Letmi; Mufit, Fatni
JRFES (Jurnal Riset Fisika Edukasi dan Sains) Vol 11, No 1 (2024): Jurnal Riset Fisika Edukasi dan Sains
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/jrfes.2024.v11i1.7986

Abstract

Clinker is a significant material in the cement manufacturing process. Before clinker formation, the raw material is burned in a Rotary Kiln with a temperature of up to 1450℃. After that, it is cooled in a Greet Cooler to a temperature of 100℃ and produces clinker. During the clinker manufacturing process, always being test on samples, but there has been no test based on magnetic susceptibility. The purpose of this research is to know the variation of the superparamagnetic clinker value based on the magnetic susceptibility value. The method used is the rock magnetism method using a Bartington Magnetic Susceptibility Meter MS2B Type. A sampling of clinker is taken hourly every day from PT. Padang Cement. From the value of magnetic susceptibility based on low-field magnetic susceptibility , it was obtained that the values varied from 3.2 × 10-8m3/kg to 22.6 ×10-8m3/kg. The frequency of dependents is also diverse, ranging from 0.0% to 7.4%. Based on the  obtained, the type of grain produced also varies. 136 samples of clinker containing less than 10% superparamagnetic grains, and 32 samples belonging to Medium  have a percentage of 2%-10% where the sample comprises superparamagnetic grains. Between 10% and 75% is a mixture of fine and coarse superparamagnetic grains.
Literature Review: Solar Energy for Alternative Renewable Energy and Potential Application in Indonesia Sulistiyono, Andi; Rifai, Hamdi; Sudiar, Nofi Yendri
Journal of Renewable Energy, Electrical, and Computer Engineering Vol. 5 No. 1 (2025): March 2025
Publisher : Institute for Research and Community Service (LPPM), Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v5i1.16143

Abstract

Electrical energy has become a human need along with economic improvements and technological advances that require an unlimited supply of energy. Its nature is limited to fossil energy sources and also causes environmental pollution, so it is necessary to use renewable energy as another energy source to overcome this problem. Solar energy is freely available, is an environmentally friendly energy source whose application results have been proven and have promising prospects for the future. This paper presents the results of a research review on the use of solar energy as an alternative source of renewable energy, the basic concept of obtaining it and some results of using this energy. Next, we will briefly review the potential and use of solar energy sources in Indonesia. The high potential of solar energy in Indonesia needs to be processed and regulations that support the development of solar energy power plants as an alternative energy. Technically, solar photovoltaic energy has the potential to become an alternative energy source for the masses in the future as a substitute for fossil energy and to meet the electrical energy needs of remote areas.
Co-Authors Adek Wulandari Adji Waskita Ahmad Fauzi Ahmad Fauzi Akmam Akmam Amelia Roza Haqu Anis Nurullaili Anisa Janna Anisa Meysi Wardi Anisa Rahmi Anisa Rahmi Anjani, Hilmi Rizki Anwar, Pratiwi Ineke Ardilla Nofri Yuwanda Ardilla Nofri Yuwanda Asrizal Ayu Desra Andira Azmi Renaldi Renaldi Alrahmadana Azmi, Hanifa Fauzia Bagus E. B. Nurhandoko Caroline Bouvet De La Maisonneuve Cindy Rara Silvia Dessupri Niarti Dewi Puspa Sari Dewi Puspa Sari Dewi Puspa Sari Dewi Puspa Sari, Dewi Puspa Dian Laila Fitri Dian Syahfitri Dini Fitriani Dini Fitriani, Dini Dio Ade Putra Dwi Anisa Visgun Dwi Anisa Visgus Elsa Yanfatriani Elsi Trisma ELvisa, Gita Oktia Emafri, Wenda Erni Erni Fajar Akmal Fajri Syukur Rahmatullah Fandu Alfadilah Faridah Lisa Supian Fathia Rahmi Fatni Mufit Fauzi Ahmad Muda Febbi Angraini Ferdinal, Ferdinal Festiyed Forni, Francesca Francesca Forni Gustika Yonanda Hapsoro, Cahyo Aji Hari Wisodo, Hari Harman Amir Helena Pentury Heni Nofira Hidayati Hidayati Hidayatul Lisma, Rahmi Husna Husna Husna Husna Husna Ika Sri Fahmi Irna Humairah Jeffrey Anthony G. Oalmann Khairani, Lathifa Kinanti, Ihsania Ikrima Lathifa Zonesya Putri Letmi Dwiridal Letmi Dwiridal Lingga Ayunda Pradipta Lisa, Tessa Destia Putri Luthfika Putri Antari M. Irvan M. Irvan Maidani, Delvi Putri Marcus Phua Marlisa Angriani Mentari Ritonga Miftahul Arrazi Muhammad Fathur Rouf Hasan Mutiara Kusuma Febriwanti Nadya Fitra Kurnia Nengsih, Reni Fitria Nofi Yendri Sudiar Nofi Yendri Sudiar Noka Hendra Nur Azizah Nurhabibah Nasution Nurhayati Nurhayati Nurmala Dewi Siregar Nurul Hazwani Pratama, Joni Pratiwi Ineke Anwar Puput Mulya Sari Putra, Amali Putri Dwi Sundari Putri, Rani Septiani Ramli Ramli Ratnawulan . Renol Afrizon Retna Junia Rifqa Hayati Rima Cemani rina, rina novita Riska Erfina Irsyad Riyasni, Selma Riza Rahmayuni Riza Rahmayuni Rizaldi Putra RR. Ella Evrita Hestiandari Sadraini, Sadraini Sani Aprisilia Satria Bijaksana Selvia Selvia Silvi Yulia Sari Siti Zulaikah Solly Aryza Sri Nilam Sari Steffen Eisele Suherman, Dea Stivani sulistiyono, andi Syafriani Syafriani Syafriani Syamina Syamina Sylvina Tebriani, Sylvina Tessa Destia Putri Lisa Titin Agustina Ulil Kurnia Umar Fauzi Venny Haris Viviandri Viviandri Wahyuni Satria Dewi Wenda Emafri Widya Widya Yelda Sufetri Yenni Darvina Yohandri Yonanda, Gustika Yoyok Adisetyo Laksono Yulhendri Yulhendri Yuni Wulandari Yurnetti Yurnetti Yusrizal Yusrizal Zaturrahmi Zaturrahmi Zulhendri Kamus