Pub Date : 2020-10-20DOI: 10.15294/JPFI.V16I2.22868
R. S. Yuliatmoko, T. Kurniawan, R. A. P. Kambali
Stress drop is a fundamental parameter of earthquake source that describes stress before and after an earthquake. The purpose of this study was to determine the tectonic characteristics of the Banda sea region. The research method used is a mathematical analysis and Nelder Mead Simplex nonlinear inversion methods. The results show that the Banda Sea is the area with complex tectonic conditions and large earthquake impacts. The Banda sea earthquake generated a stress drop of between 2 MPa -10 MPa from small to medium, it can be concluded that the rocks in the Banda Sea are relatively harder because the Banda Sea has a complex and varied oceanographic profile. The Banda Sea contains many continental fragments and has very deep ocean basins in the North Banda and Weber Deep, as well as plate rollbacks that form geometry in the shape of a spoon. The strength of rocks in the Banda Sea is also strengthened by the results of gravitational anomalies, there are significant differences in the gravity anomalies around the Banda ocean which indicate high density. This information is very important to know the amount of pressure released shortly after the earthquake which has a very large impact as a disaster mitigation measure.          Â
{"title":"Stress Drop Analysis on Banda Sea","authors":"R. S. Yuliatmoko, T. Kurniawan, R. A. P. Kambali","doi":"10.15294/JPFI.V16I2.22868","DOIUrl":"https://doi.org/10.15294/JPFI.V16I2.22868","url":null,"abstract":"Stress drop is a fundamental parameter of earthquake source that describes stress before and after an earthquake. The purpose of this study was to determine the tectonic characteristics of the Banda sea region. The research method used is a mathematical analysis and Nelder Mead Simplex nonlinear inversion methods. The results show that the Banda Sea is the area with complex tectonic conditions and large earthquake impacts. The Banda sea earthquake generated a stress drop of between 2 MPa -10 MPa from small to medium, it can be concluded that the rocks in the Banda Sea are relatively harder because the Banda Sea has a complex and varied oceanographic profile. The Banda Sea contains many continental fragments and has very deep ocean basins in the North Banda and Weber Deep, as well as plate rollbacks that form geometry in the shape of a spoon. The strength of rocks in the Banda Sea is also strengthened by the results of gravitational anomalies, there are significant differences in the gravity anomalies around the Banda ocean which indicate high density. This information is very important to know the amount of pressure released shortly after the earthquake which has a very large impact as a disaster mitigation measure.           ","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43134943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-16DOI: 10.22146/jfi.v24i1.53533
A. Anggraini, Elvira Mardhatillah
Stress coulomb merupakan deskripsi kuantitatif perubahan stress statis oleh gempa utama yang dirasakan oleh patah lain di sekitarnya. Dalam penelitian ini, perubahan stress statis yang disebabkan oleh gempa Palu Mw7,5 2008 dan pengaruhnya terhadap patahan lain yang mempunyai orientasi bidang patah sejajar dengan gempa utama akan diselidiki. Metode perhitungan yang dipakai adalah perhitungan stress statis yang dirasakan oleh patahan dengan orientasi tertentu, dimana perhitungan ini tidak dipengaruhi oleh besar dan arah sumbu stress regional namun tergantung pada lokasi patahan, mekanisme bidang patah, dan besarnya slip oleh gempa utama. Dari metode ini akan diperoleh sebaran nilai stress coulomb yang selanjutnya akan dipakai untuk meninjau korelasi peningkatan maupun penurunan stress dengan lokasi gempa susulan. Perhitungan stress coulomb dilakukan pada kedalaman yang berbeda lalu dibandingkan dengan distribusi gempa susulan. Hasil perhitungan stress coulomb menunjukkan bahwa sebagian besar gempa susulan terletak pada area di mana terjadi peningkatan stress. Hal ini mengindikasikan; gempa susulan tersebut terletak pada bidang patah gempa utama dan merupakan bagian dari fase ko-seismik, memiliki orientasi, dan mekanisme gerakan seperti bidang patah gempa utama.
{"title":"Perubahan Stress Statis Gempa Utama dan Asosiasi Distribusi Gempa Susulan: Studi Kasus Gempa Palu Mw 7,5 28 September 2018","authors":"A. Anggraini, Elvira Mardhatillah","doi":"10.22146/jfi.v24i1.53533","DOIUrl":"https://doi.org/10.22146/jfi.v24i1.53533","url":null,"abstract":"Stress coulomb merupakan deskripsi kuantitatif perubahan stress statis oleh gempa utama yang dirasakan oleh patah lain di sekitarnya. Dalam penelitian ini, perubahan stress statis yang disebabkan oleh gempa Palu Mw7,5 2008 dan pengaruhnya terhadap patahan lain yang mempunyai orientasi bidang patah sejajar dengan gempa utama akan diselidiki. Metode perhitungan yang dipakai adalah perhitungan stress statis yang dirasakan oleh patahan dengan orientasi tertentu, dimana perhitungan ini tidak dipengaruhi oleh besar dan arah sumbu stress regional namun tergantung pada lokasi patahan, mekanisme bidang patah, dan besarnya slip oleh gempa utama. Dari metode ini akan diperoleh sebaran nilai stress coulomb yang selanjutnya akan dipakai untuk meninjau korelasi peningkatan maupun penurunan stress dengan lokasi gempa susulan. Perhitungan stress coulomb dilakukan pada kedalaman yang berbeda lalu dibandingkan dengan distribusi gempa susulan. Hasil perhitungan stress coulomb menunjukkan bahwa sebagian besar gempa susulan terletak pada area di mana terjadi peningkatan stress. Hal ini mengindikasikan; gempa susulan tersebut terletak pada bidang patah gempa utama dan merupakan bagian dari fase ko-seismik, memiliki orientasi, dan mekanisme gerakan seperti bidang patah gempa utama.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"58 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2020-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83472818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-16DOI: 10.22146/jfi.v24i1.53331
Y. R. Utomo, G. Maruto, A. Utomo, P. Nurwantoro, S. Sholihun
Calculation of energy eigen value of hydrogen negative ion (H − ) in 2p^2 configuration using the method of variation functions has been done. A work on H − can lead to calculations of electric multipole moments of a hydrogen molecule. The trial function is a linear combination of 8 expansion terms each of which is related to the Chandrasekhar’s basis. This work produces a series of 7 energy eigen values which converges to a value of −0.2468 whereas the value of this convergence is expected to be −0.2523. This deviation from the expected value is mainly due to the elimination of interelectronic distance (u) coordinate. The values of the exponent parameters used in this work contribute also to this deviation. This variational method will be applied to the construction of some energy eigen functions of Hv2 .
{"title":"Numerical Calculation of Energy Eigen-values of the Hydrogen Negative Ion in the 2p^2 Configuration by Using the Variational Method","authors":"Y. R. Utomo, G. Maruto, A. Utomo, P. Nurwantoro, S. Sholihun","doi":"10.22146/jfi.v24i1.53331","DOIUrl":"https://doi.org/10.22146/jfi.v24i1.53331","url":null,"abstract":"Calculation of energy eigen value of hydrogen negative ion (H − ) in 2p^2 configuration using the method of variation functions has been done. A work on H − can lead to calculations of electric multipole moments of a hydrogen molecule. The trial function is a linear combination of 8 expansion terms each of which is related to the Chandrasekhar’s basis. This work produces a series of 7 energy eigen values which converges to a value of −0.2468 whereas the value of this convergence is expected to be −0.2523. This deviation from the expected value is mainly due to the elimination of interelectronic distance (u) coordinate. The values of the exponent parameters used in this work contribute also to this deviation. This variational method will be applied to the construction of some energy eigen functions of Hv2 .","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"121 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2020-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75041785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.15294/jpfi.v16i1.14253
J. R. Batlolona, S. Singerin, M. Diantoro
The purpose of this study was to determine the development of mental models (MM) of students as well as to analyze the differences in MM based on the learning model used. This research is expected to be a guide for teachers in exploring the concept of physics as a whole. The study was conducted at the high school level with a medium level school category. The research method used mixed methods embedded experimental models with surface level, matching and deep (SMD) diagnostic test instruments. The results of the study showed that there were an increase on students’ MM at each meeting in the SMD level. Other results show that there are differences in the mean scores corrected between levels of the learning model. The mean score corrected PBL mental model is significantly different from conventional. The increase in MM students with PBL was higher than the increase in MM students with conventional learning. Thus, PBL can be recommended to increase MM students' physics of high school students.
{"title":"Influence of Problem Based Learning Model on Student Mental Models","authors":"J. R. Batlolona, S. Singerin, M. Diantoro","doi":"10.15294/jpfi.v16i1.14253","DOIUrl":"https://doi.org/10.15294/jpfi.v16i1.14253","url":null,"abstract":"The purpose of this study was to determine the development of mental models (MM) of students as well as to analyze the differences in MM based on the learning model used. This research is expected to be a guide for teachers in exploring the concept of physics as a whole. The study was conducted at the high school level with a medium level school category. The research method used mixed methods embedded experimental models with surface level, matching and deep (SMD) diagnostic test instruments. The results of the study showed that there were an increase on students’ MM at each meeting in the SMD level. Other results show that there are differences in the mean scores corrected between levels of the learning model. The mean score corrected PBL mental model is significantly different from conventional. The increase in MM students with PBL was higher than the increase in MM students with conventional learning. Thus, PBL can be recommended to increase MM students' physics of high school students.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"46 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67006595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-16DOI: 10.22146/jfi.v22i2.32628
R. Rizki
Formasi Rajamandala tersingkap luas di daerah Padalarang, Jawa Barat, mulai dari daerah Cikamuning (Tagogapu) di bagian timur sampai Saguling di bagian barat. Batugamping dari formasi ini dibagi menjadi dua satuan batuan yaitu anggota batugamping dan anggota lempung dan napal. Formasi ini terbentuk pada Oligosen Akhir sampai Miosen Awal. Penelitian dilakukan di daerah Cikamuning, Padalarang, Jawa Barat dengan menggunakan metode ground penetrating radar (GPR). Penelitian ini meliputi pengambilan (akuisisi) data GPR, pengolahan data GPR dengan menggunakan software ReflexW, dan menginterpretasi data lapangan dengan mengikat data bor ITB-1. Frekuensi alat yang digunakan adalah 75 MHz, penggunaan frekuensi ini memberikan kemampuan resolusi yang cukup baik dengan jangkauan kedalaman yang memenuhi target. Pengolahan data GPR dilakukan dengan tahapan dewow, AGC, energy decay, background removal, bandpass frequency, autocorrelation, deconvolution, stack trace, kirchoff migration, FK-filter, dan static correction. Data yang sudah diproses kemudian diinterpretasi untuk mengetahui kondisi geologi bawah permukaan serta penyebaran fasies batugamping daerah penelitian.
{"title":"Aplikasi Metode Ground Penetrating Radar untuk Mengidentifikasi Fasies Batugamping Formasi Rajamandala Di Daerah Cikamuning, Jawa Barat","authors":"R. Rizki","doi":"10.22146/jfi.v22i2.32628","DOIUrl":"https://doi.org/10.22146/jfi.v22i2.32628","url":null,"abstract":"Formasi Rajamandala tersingkap luas di daerah Padalarang, Jawa Barat, mulai dari daerah Cikamuning (Tagogapu) di bagian timur sampai Saguling di bagian barat. Batugamping dari formasi ini dibagi menjadi dua satuan batuan yaitu anggota batugamping dan anggota lempung dan napal. Formasi ini terbentuk pada Oligosen Akhir sampai Miosen Awal. Penelitian dilakukan di daerah Cikamuning, Padalarang, Jawa Barat dengan menggunakan metode ground penetrating radar (GPR). Penelitian ini meliputi pengambilan (akuisisi) data GPR, pengolahan data GPR dengan menggunakan software ReflexW, dan menginterpretasi data lapangan dengan mengikat data bor ITB-1. Frekuensi alat yang digunakan adalah 75 MHz, penggunaan frekuensi ini memberikan kemampuan resolusi yang cukup baik dengan jangkauan kedalaman yang memenuhi target. Pengolahan data GPR dilakukan dengan tahapan dewow, AGC, energy decay, background removal, bandpass frequency, autocorrelation, deconvolution, stack trace, kirchoff migration, FK-filter, dan static correction. Data yang sudah diproses kemudian diinterpretasi untuk mengetahui kondisi geologi bawah permukaan serta penyebaran fasies batugamping daerah penelitian.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"125 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2020-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77587348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-12DOI: 10.22146/jfi.v22i1.43533
Ari Setiawan
Telah dilakukan penelitian yang berhubungan dengan medan potensial gravitasi di permukaan bumi yang merupakan persamaan harmonik bola. Harmonik bola tersebut merupakan penyelesaian dari persamaan Laplace, dalam sistem koordinat bola. Persamaan ini dikenal dengan Associated Legendre Functions. Pada penelitian ini dikembangkan visualisasi Associated Legendre Functions atau disebut juga dengan Spherical Harmonic Functions dalam tampilan 1D, 2D, 3D dengan menggunakan pemrograman MATLAB. Telah berhasil dikembang visualisasi dalam koordinat bola untuk fungsi r + Pnm(x) dengan r = 5 dan Pnm(x) yaitu Associated Legendre Functions untuk derajat n = dari 1 sampai 7 dan dengan orde m ≤ n.
{"title":"Visualisasi Fungsi Legendre dan Perilaku dari Permukaan Bola Harmonik dengan Menggunakan Bahasa Pemrograman Matlab","authors":"Ari Setiawan","doi":"10.22146/jfi.v22i1.43533","DOIUrl":"https://doi.org/10.22146/jfi.v22i1.43533","url":null,"abstract":"Telah dilakukan penelitian yang berhubungan dengan medan potensial gravitasi di permukaan bumi yang merupakan persamaan harmonik bola. Harmonik bola tersebut merupakan penyelesaian dari persamaan Laplace, dalam sistem koordinat bola. Persamaan ini dikenal dengan Associated Legendre Functions. Pada penelitian ini dikembangkan visualisasi Associated Legendre Functions atau disebut juga dengan Spherical Harmonic Functions dalam tampilan 1D, 2D, 3D dengan menggunakan pemrograman MATLAB. Telah berhasil dikembang visualisasi dalam koordinat bola untuk fungsi r + Pnm(x) dengan r = 5 dan Pnm(x) yaitu Associated Legendre Functions untuk derajat n = dari 1 sampai 7 dan dengan orde m ≤ n.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"49 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2020-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82209532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.15294/jpfi.v16i1.17491
N. A. Wibowo, S. M. Utami, C. A. Riyanto, A. Setiawan
The impacts of strengthening magnetic field exposure on combustion performance of low-octane fuel have been examined experimentally. The combustion test was carried out using a 2-stroke 49 cc engine where the fuel was magnetized using a low magnetic field (<2 kG). Moreover, the molecular behavior of magnetized fuel was also characterized through spectrum tests using NIR and UV-Vis spectrophotometers. The result of this study indicates an exponential decrease of magnetized fuel consumption against the strengthening of magnetic field exposure. This exponential decrease of consumption can be related to the Arrhenius principle. In addition, the decrease of oxygen in the exhaust gas along with the strengthening of the magnetic field also confirms the increase of combustion reactions. Meanwhile, the increase of magnetized fuel absorption against ultraviolet and near-infrared lights along with the increase of the magnetic field intensity indicates a bond weakening, accompanied by the increase of molecular vibrational energy.
{"title":"Impact of Magnetic Field Strengthening on Combustion Performance of Low-Octane Fuel in Two-Stroke Engine","authors":"N. A. Wibowo, S. M. Utami, C. A. Riyanto, A. Setiawan","doi":"10.15294/jpfi.v16i1.17491","DOIUrl":"https://doi.org/10.15294/jpfi.v16i1.17491","url":null,"abstract":"The impacts of strengthening magnetic field exposure on combustion performance of low-octane fuel have been examined experimentally. The combustion test was carried out using a 2-stroke 49 cc engine where the fuel was magnetized using a low magnetic field (<2 kG). Moreover, the molecular behavior of magnetized fuel was also characterized through spectrum tests using NIR and UV-Vis spectrophotometers. The result of this study indicates an exponential decrease of magnetized fuel consumption against the strengthening of magnetic field exposure. This exponential decrease of consumption can be related to the Arrhenius principle. In addition, the decrease of oxygen in the exhaust gas along with the strengthening of the magnetic field also confirms the increase of combustion reactions. Meanwhile, the increase of magnetized fuel absorption against ultraviolet and near-infrared lights along with the increase of the magnetic field intensity indicates a bond weakening, accompanied by the increase of molecular vibrational energy.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"16 1","pages":"57-62"},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67006615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.15294/jpfi.v16i1.21371
H. Kurt, Z. Doğan
Due to the nature of physics, problem-solving strategies are applied in some cases to teach many subjects. Problem-solving is a process that individuals use, not only in physics classes but also in every stage of life. An algorithm is a pathway to solving a problem or achieving a specific purpose. The purpose of this study is to identify how pre-service science teachers express the algorithms they utilize in the process of solving physics problems. The research design of the study was determined as survey design which is one of the quantitative research methods. The study was carried out with the number of 34 pre-service science teachers consisting of 1st and 3rd-year university students who took General Physics I and General Physics Lab I courses in the undergraduate program in science education at a state university. They were given three problems regarding classical mechanics and then asked to solve these problems and schematize their algorithms by using flowcharts. The International System of Units (SI) was used throughout the research. An evaluation was made by comparing the 3 algorithms of the solution, whose reliability and validity was ensured, and which was previously created with the help of 3 experts. In the study, descriptive survey model was used. Frequency tables were frequently used in the analysis of the data with the intent to present the study in the best way by doing an in-depth analysis. In the findings of the research, it was observed that pre-service science teachers had problems in expressing their algorithms and some of them could not express these algorithms at all. It was also observed that pre-service science teachers had difficulty describing the solutions they created while setting up the problem. However, it was observed that preservice science teachers who could illustrate their algorithms well were usually the ones who solved the problems correctly.
{"title":"Pre-Service Science Teachers’ Skills to Express The Algorithms Used in Solving Physics Problems with Flowcharts (An Example From Turkey)","authors":"H. Kurt, Z. Doğan","doi":"10.15294/jpfi.v16i1.21371","DOIUrl":"https://doi.org/10.15294/jpfi.v16i1.21371","url":null,"abstract":"Due to the nature of physics, problem-solving strategies are applied in some cases to teach many subjects. Problem-solving is a process that individuals use, not only in physics classes but also in every stage of life. An algorithm is a pathway to solving a problem or achieving a specific purpose. The purpose of this study is to identify how pre-service science teachers express the algorithms they utilize in the process of solving physics problems. The research design of the study was determined as survey design which is one of the quantitative research methods. The study was carried out with the number of 34 pre-service science teachers consisting of 1st and 3rd-year university students who took General Physics I and General Physics Lab I courses in the undergraduate program in science education at a state university. They were given three problems regarding classical mechanics and then asked to solve these problems and schematize their algorithms by using flowcharts. The International System of Units (SI) was used throughout the research. An evaluation was made by comparing the 3 algorithms of the solution, whose reliability and validity was ensured, and which was previously created with the help of 3 experts. In the study, descriptive survey model was used. Frequency tables were frequently used in the analysis of the data with the intent to present the study in the best way by doing an in-depth analysis. In the findings of the research, it was observed that pre-service science teachers had problems in expressing their algorithms and some of them could not express these algorithms at all. It was also observed that pre-service science teachers had difficulty describing the solutions they created while setting up the problem. However, it was observed that preservice science teachers who could illustrate their algorithms well were usually the ones who solved the problems correctly.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"16 1","pages":"24-33"},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67006364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.15294/jpfi.v16i1.9122
F. Yanti, H. Kuswanto, H. Habibi, A. Kinasih
It is known that the 'electronic structure of atoms' in material physics is microscopic. This atomic structure has an abstract and complicated concept, therefore good analogy skills are needed to study comprehensively. This research develops a free analogy-based material physics module to supply analogy skills to prospective physics teacher students. Module development uses the 4D model namely Define, Design, Development and Disseminate. The feasibility aspects are required based on the presentation, content, and grammar. Data obtained from expert assessment and trials using questionnaires, interviews, and tests. Increased student analogy skills were analyzed using normalized N-gain. The results obtained are: (1) the characteristics of the module that has learning steps such as teaching with analogy models, namely: introducing the concept of targets, reviewing the concept of analogies, identifying the relevant nature of targets and analogies, mapping analogies with targets, identifying analogies that are not relevant to targets, and make conclusions, (2) module quality on atomic electronic structure material developed is categorized as feasible, (3) modules are proven to increase mastery of the concept of atomic electronic structure (N-gain = 54%) and analytical skills prospective teachers physics (N-gain = 56%). The development of physics modules based on free analogies can be applied to other learning, such as biology, chemistry, and mathematics to explain abstract material.
{"title":"Development of Analogy-Based Material Physics Module to Provide Analogy Ability of Physics Teachers Candidates","authors":"F. Yanti, H. Kuswanto, H. Habibi, A. Kinasih","doi":"10.15294/jpfi.v16i1.9122","DOIUrl":"https://doi.org/10.15294/jpfi.v16i1.9122","url":null,"abstract":"It is known that the 'electronic structure of atoms' in material physics is microscopic. This atomic structure has an abstract and complicated concept, therefore good analogy skills are needed to study comprehensively. This research develops a free analogy-based material physics module to supply analogy skills to prospective physics teacher students. Module development uses the 4D model namely Define, Design, Development and Disseminate. The feasibility aspects are required based on the presentation, content, and grammar. Data obtained from expert assessment and trials using questionnaires, interviews, and tests. Increased student analogy skills were analyzed using normalized N-gain. The results obtained are: (1) the characteristics of the module that has learning steps such as teaching with analogy models, namely: introducing the concept of targets, reviewing the concept of analogies, identifying the relevant nature of targets and analogies, mapping analogies with targets, identifying analogies that are not relevant to targets, and make conclusions, (2) module quality on atomic electronic structure material developed is categorized as feasible, (3) modules are proven to increase mastery of the concept of atomic electronic structure (N-gain = 54%) and analytical skills prospective teachers physics (N-gain = 56%). The development of physics modules based on free analogies can be applied to other learning, such as biology, chemistry, and mathematics to explain abstract material.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"16 1","pages":"34-40"},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67006637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.15294/jpfi.v16i1.23096
S. A. Azhary, S. Supahar, K. Kuswanto, M. Ikhlas, I. P. Devi
Behavioral problems become special attention to learning. Some teachers confronted with a variety of student behaviors and varied learning outcomes. This research was aimed to determine the relationship between learning outcomes and student learning behavior with ranking score. A total of 91 of 10th-grade students with three different classes became respondents. The research was used Mixed methods with the sequential explanatory approach. Quantitative data were obtained by giving multiple-choice questions. The interview method was used to collect qualitative data. Kruskal Wallis test was used to analyze quantitative data and the interview transcript analyzed by the keyword of student behavior in learning physics. The results show that behavior while learning is very significant towards student learning outcomes. Interview findings show that student behavior during the learning process could affect learning outcomes.
{"title":"Relationship Between Behavior of Learning and Student Achievement in Physics Subject","authors":"S. A. Azhary, S. Supahar, K. Kuswanto, M. Ikhlas, I. P. Devi","doi":"10.15294/jpfi.v16i1.23096","DOIUrl":"https://doi.org/10.15294/jpfi.v16i1.23096","url":null,"abstract":"Behavioral problems become special attention to learning. Some teachers confronted with a variety of student behaviors and varied learning outcomes. This research was aimed to determine the relationship between learning outcomes and student learning behavior with ranking score. A total of 91 of 10th-grade students with three different classes became respondents. The research was used Mixed methods with the sequential explanatory approach. Quantitative data were obtained by giving multiple-choice questions. The interview method was used to collect qualitative data. Kruskal Wallis test was used to analyze quantitative data and the interview transcript analyzed by the keyword of student behavior in learning physics. The results show that behavior while learning is very significant towards student learning outcomes. Interview findings show that student behavior during the learning process could affect learning outcomes.","PeriodicalId":42020,"journal":{"name":"Jurnal Pendidikan Fisika Indonesia-Indonesian Journal of Physics Education","volume":"16 1","pages":"1-8"},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67006418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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