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Departemen of Physics Education Faculty of Teacher Training and Education Universitas Sultan Ageng Tirtayasa Jl. Raya Ciwaru No. 25, Sempu, Kota Serang, Banten, 42117.
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Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 2442515X     EISSN : 25281976     DOI : http://dx.doi.org/10.30870/gravity.vxix
Core Subject : Science, Education,
Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics
The focuses of the manuscript received in the Gravity journal is limited to the topic: Physics Education (Media, Educational Policy, Assessment, Learning Model) Theoretical Physics Material Physics Earth and Environmental Physics Astrophysics Medical Physics Computational Physics and Instrumentation
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 208 Documents
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Simulasi Produksi Neutron pada LINAC Radioterapi menggunakan metode Monte Carlo FLUKA-FLAIR Ramdani, Ridwan; Sutrisna, Irma Wati; Syaja'ah, Khoerun Nisa; Aliah, Hasniah
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i1.18979

Abstract

The use of high-energy photon beams in radiotherapy aims to increase the effectiveness of the radiation beam so that it can reach tumors that are deeper than the surface of the skin. However, linac aircraft operated above 8 MV can cause photonuclear interactions. Neutrons, which are highly avoided in medical physics, can be generated from the interaction of high-energy photons with materials with high atomic numbers (Z) in linac heads. The study focused on simulating the production of linac 10 MV aircraft contaminant neutrons using Fluka-Flair software based on the Monte Carlo method to find out where the contaminant neutrons come from and their dose contribution to the water phantom. The simulated linac aircraft is a linac head consisting of target components, primary collimator, Flattening filter, ion chamber, Secondary Collimator, and Phantom. The simulation results show that neutrons are generated at the target component, primary collimator, Flattening filter, ion chamber, secondary collimator, and water phantom. Tungsten is the target material with the most excellent 55,08% neutron fluence due to its highest atomic number, Primary Collimator 23,45%, Flattening Filter 10,67%, Ion Chamber 7,58%, Secondary Collimator 3,07% and Phantom 0,15 %.
Students' critical thinking ability in implementing the physics learning module with inquiry strategies based on blended learning Chandra Ertikanto; Ismu Wahyudi
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i1.15378

Abstract

The revised 2013 curriculum demands that teachers at all types and levels of schools are expected to be able to apply various approaches and learning models. The problem is the need for learning approaches, models, and assessment instruments for the National Examination or School Examination. This study aimed to describe the difference in the average critical thinking ability of students who used a scientific approach learning module with an inquiry strategy based on blended learning and conventional books used in one of the public high schools in Bandar Lampung. After carrying out the learning process using these modules in the experimental class and the learning process using conventional books in the control class, an analysis of gathering information through discussion forums and planning, instrument testing, difficulty level, discriminating power, N-gain, and Independent Sample T-test is carried out. Test. The final results of the research can be concluded that learning modules using a scientific approach with inquiry strategies based on blended learning can improve the critical thinking skills of high school students in Bandar Lampung for the 2020/2021 academic year.
Utilisation of solar cell energy as physics learning media Nur Azizah Lubis; Siti Khairunnisa; Mentari Darma Putri
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i1.19143

Abstract

Electrical energy is one of the human needs that is often used in everyday life. However, the power plant used is still conventionally using fossil fuels, gas oil or coal which is getting depleted, while the need for electricity is increasing. The benefits of how solar cells work as a learning medium is one of the studies as an example of the utilisation of solar thermal energy into electrical energy.This research uses experimental methods. The results of the efficiency of the benefits of how the solar cell works as a learning media feasibility percentage of 75.6% From the results of panel test data for 5 times observed periodically produced an efficiency of 83% at the time of use 30 minutes, 85% at the time of use 60 minutes, 79% at the time of use 90 minutes, 68% at the time of use 120 minutes and 63% at the time of use for 150 minutes. So that the total efficiency done by solar panels can be 75.6% and the tools used as solar cell media can work properly. Voltage, current, electric power and efficiency of the lamp produced are influenced by the size of the temperature of the solar heat, if the temperature of the solar heat is high then the resulting efficiency increases and vice versa. If the sunlight is low then the value of efficiency, current, voltage and power will decrease.
Development of Adphylab in the Geiger-Muller Counter Practicum to Facilitate Science Process Skills Andri Suherman; Yudi Guntara; Darmawan Kristiaji; Ganesha Antarnusa
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i1.20858

Abstract

It is common among students to develop their skills while studying, and it demands educators improve their learning quality. Development of an Advanced Virtual Physics Laboratory (Adphylab) in the Geiger-Muller Counter practicum to facilitate students' science process skills in the Physics Education of Sultan Ageng Tirtayasa University. The research method used is research and development (R&D) with the Rowntree development model. Adphylab in the Geiger muller counter practicum has four menus, including insight, design, time for action, and a summary called WaRa-WiRi which can be accessed easily via the web. The results of the due diligence by material experts at the Adphylab practicum Geiger muller counter obtained a percentage score of 94% with very feasible criteria, and the results of the due diligence by media experts obtained a percentage value of 96% with the very feasible category. The results of the students' limited test responses to Adphylab in the Geiger Muller Counter practicum obtained a score percentage of 90% in the very feasible category.
Fabrication of eco-friendly electric tricycles with solar panels for handicapped person Mahendra Satria Hadiningrat; Mayang Sari; Ninik Nigusti Ayu Sunardi
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i2.21321

Abstract

Solar energy is energy in the form of rays and heat from the sun. This energy can be harnessed using various technologies, such as solar panels. Solar panels consist of solar cells that convert light into electrical energy. The topic of this research is the use of solar panels for battery charging on electric tricycles. The process of developing an electric tricycle with solar power consists of several stages, from the preparation of the tricycle, the development design, and the manufacture of the solar panel frame and holder to the assembly and testing process. The result of this research is an electric tricycle uses a 48 Volt with two units solar panel 100 Wp, 7.2 Ah battery with a charging time of 1 hour 22 minutes, using a 350 Watt Brushless DC motor. The maximum speed of an electric tricycle with solar panels is as expected: a distance range of 45 km and a load of 120 kg (per person).
Opportunities and challenges of implementing computational thinking through unplugged activities in physics learning Ahmad Fauzi; Shofi Hikmatuz Zahroh
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i2.17456

Abstract

Computational thinking is one of the universal competencies that students must master in facing the challenges of the 21st century. This study describes the opportunities and challenges of applying computational thinking through unplugged activities in physics learning, especially in senior high school. This research was involved with survey research and a cross-sectional survey design type. The respondents of this study were physics teachers in the city of Semarang and Surakarta. The number of respondents in this study was 43 people. Data were taken by using questionnaires and interview techniques. This study's result indicates opportunities for applying computational thinking through unplugged activities in physics learning. Most respondents welcomed the application of computational thinking through unplugged activities in physics learning. However, according to some teachers, several aspects might become obstacles to implementing computational thinking through unplugged activities, namely the difficulty of making algorithms and simulation.
Pengaruh E-Modul berbasis Model Pembelajaran Guided Inquiry terhadap Keterampilan Berpikir Kritis pada Materi Usaha dan Energi Ariq Nurmahmuddin; Nana Nana; Rahmat Rizal
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i2.17801

Abstract

This research stems from using learning materials that still consist mainly of textbooks and occasionally printed modules, resulting in low levels of students' critical thinking skills. This study aims to investigate the influence of an e-module based on the guided inquiry learning model on students' critical thinking skills on the topic of work and energy. The research method is a quasi-experimental design with a pretest-posttest control group design. The population in this study comprises all tenth-grade science students at SMA Negeri 3 Kota Tasikmalaya, and the sample was selected using cluster random sampling technique, with Class X MIPA 7 as the experimental group and Class X MIPA 8 as the control group. The data analysis technique includes prerequisite testing, hypothesis testing, and N-Gain analysis. Based on the hypothesis test results using the t-test, it was found that , specifically, 3.75 > 1.67, leading to the rejection of . Therefore, it can be concluded that using an e-module based on the guided inquiry learning model influences students' critical thinking skills on work and energy. The improvement in students' critical thinking skills was assessed using the N-Gain test, which yielded an average N-Gain score of 0.41, indicating moderate improvement.
IMPROVING STUDENT'S PROBLEM SOLVING BY USING WORKED EXAMPLE IN THE CONTEXT OF WONOSOBO LOCAL WISDOM Kholifatul Azizah; Nugroho Prasetya Adi
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i2.20783

Abstract

This research regarding applying science-worked examples in the context of local wisdom to improve students' problem-solving abilities is motivated by students' low problem-solving abilities, especially in science-physics learning. Students' standard problem-solving abilities are due to the lack of practice in the learning process. Through the application of Science Worked Examples, it is hoped that it will be able to help students in the learning process so that they can grow students' problem-solving abilities. The type of research used in this research is a quantitative method with an experimental approach. The subjects used in this research were class VIII A as a control sample and class VIII B as a testing sample at SMP N 2 Garung. The research results showed an increase of 31.9% in the control sample using conventional teaching materials and a rise of 44.1% in the experimental sample using Science Worked Examples. The effectiveness obtained using the N-Gain test was 1.38, so it was concluded that there was a difference in effective improvement where learning with worked example science teaching materials was stated to be more effective.
Analisis Karakteristik Superposisi Pada Suara Gamelan Dengan Menggunakan Aplikasi Spectra Plus dan Audacity Aristyarini Cahyadiningrat; Fara Afida Ramadhani; Fadli Aulia Salim; Ghazy Refindramiqdad Glasieradyaksa; Raditya Martanegara; Khafidh Nur Aziz
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i2.20602

Abstract

This research aims to analyze the characteristics of superposition waves in the musical instrument known as "saron" in the gamelan ensemble. In this study, three types of gamelan sarons were used as research instruments: "saron demung," "saron barung," and "saron panerus" or "peking." The sounds produced by these musical instruments were recorded, mixed, and analyzed using Audacity software and Spectra Plus Sound Card Edition. The analysis results conducted with Audacity and Spectra Plus Sound Card Edition revealed the presence of superposition waves that either reinforced each other when they had the same phase and frequency or weakened each other when they had different phases and frequencies. Therefore, this study concludes that audio mixing that falls under constructive or reinforcing superposition of waves is the combination of "saron demung" with "saron demung." On the other hand, audio mixing that falls under the destructive superposition of waves includes the varieties of "saron barung" with "peking," "saron barung 1" with "demung," "saron barung 2" with "peking," and "saron barung 2" with "demung."
Analisa Statigrafi Seismik Dalam Menentukan Play Hidrokarbon Dengan Menggunakan Diagram Wheeler Indah Gumilang Dwinanda
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i2.21097

Abstract

Seismic stratigraphy is one of the efforts in interpreting stratigraphy from seismic data. In seismic data, things that can be construed include faults, facies, depositional environments, sequence boundaries, petroleum systems, etc. Studies related to seismic stratigraphy are an essential part of oil and gas exploration activities. These studies can support the analysis of results in early fields with minimal data or fields without good data. The results of stratigraphic analyses on subsequent seismic data are useful as a basis for further exploration activities. A simple method that can be used to interpret seismic data is by using a wheeler diagram. The interpretation results obtained from stratigraphic analysis on seismic data with a width of 5 Km and a depth of 50 ms are ten faults with a descending pattern, and there are five sequence boundaries based on the continuity pattern of seismic data. Based on the results of stratigraphic interpretation on seismic data, the reservoir deposition environment is in the transition area. The petroleum system that can be indicated from the seismic data is that the reservoir is in the off-lap section and also in the basin floor fan, the source rock is below the reservoir zone, the reservoir migration pattern passes through the fault, and the shale at the top of the reservoir layer can be a seal rock and the trapping pattern in the seismic data is generally a stratigraphy trap

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