The objectives of this study is to develop project-based Physics Study teaching materials for Middle School that can improve concept mastery of high school teacher candidates. This research includes education development divided into three steps i.e the preliminary study, the product design development, and the product testing. The results showed that the developed instructional materials were suitable for use in learning and fulfilled the validation test by experts for the components of content feasibility, presentation and language in a good category. The responses of the student after using the teaching materials are very good for supporting and completing teaching materials during lectures. The tested teaching materials of Physics learning in Middle School can improve mastery of high school physics concepts for teacher candidates.Keywords: project-based teaching materials, school physics studies, mastery of physics concepts
{"title":"Pengembangan Bahan Ajar Kajian Fisika Sekolah Menengah Berbasis Proyek Untuk Meningkatkan Penguasaan Konsep Fisika Calon Guru","authors":"Sutrio Sutrio, J. Rokhmat, Satutik Rahayu","doi":"10.29303/jppfi.v3i1.110","DOIUrl":"https://doi.org/10.29303/jppfi.v3i1.110","url":null,"abstract":"The objectives of this study is to develop project-based Physics Study teaching materials for Middle School that can improve concept mastery of high school teacher candidates. This research includes education development divided into three steps i.e the preliminary study, the product design development, and the product testing. The results showed that the developed instructional materials were suitable for use in learning and fulfilled the validation test by experts for the components of content feasibility, presentation and language in a good category. The responses of the student after using the teaching materials are very good for supporting and completing teaching materials during lectures. The tested teaching materials of Physics learning in Middle School can improve mastery of high school physics concepts for teacher candidates.Keywords: project-based teaching materials, school physics studies, mastery of physics concepts","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116024931","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}
Active Learning Strategies to Improve Understanding of Fundamental Physics Objects. Physics is one of the subjects considered difficult by students. The learning strategies applied by the teacher must be well structured in order to be able to provide understanding to students. Active learning strategies need to be done to improve understanding of physics properly and correctly. This study was conducted to determine the effectiveness of active learning to improve understanding of physics in prospective teachers. This active learning strategy is combined with causalitics and cognitive conflict learning methods which are applied to inter-semester course material at the end of the 2018 – 2019 school year. Learning with this combination of methods is able to provide a good understanding of existing students. The post-test results, which were compared with the pre-test results, showed an increase in the average student understanding of up to 24%. Active learning is proven to be able to improve the understanding of lecture material for students. Keywords: active learning, physics education
{"title":"Strategi Pembelajaran Aktif untuk Meningkatkan Pemahaman Materi Kuliah Antar Semester","authors":"M. Zuhdi, J. Rokhmat","doi":"10.29303/jppfi.v3i1.121","DOIUrl":"https://doi.org/10.29303/jppfi.v3i1.121","url":null,"abstract":"Active Learning Strategies to Improve Understanding of Fundamental Physics Objects. Physics is one of the subjects considered difficult by students. The learning strategies applied by the teacher must be well structured in order to be able to provide understanding to students. Active learning strategies need to be done to improve understanding of physics properly and correctly. This study was conducted to determine the effectiveness of active learning to improve understanding of physics in prospective teachers. This active learning strategy is combined with causalitics and cognitive conflict learning methods which are applied to inter-semester course material at the end of the 2018 – 2019 school year. Learning with this combination of methods is able to provide a good understanding of existing students. The post-test results, which were compared with the pre-test results, showed an increase in the average student understanding of up to 24%. Active learning is proven to be able to improve the understanding of lecture material for students. Keywords: active learning, physics education","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122459646","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}
This study aims to determine the effectiveness of physics learning tools based on problem based learning models to improve effective and efficient problem solving and critical thinking skills of students. The type of research used is research and development (Research and Development) with the research model being developed is 4D Models. The effectiveness is obtained from a limited trial to get the N-gain test value and the efficiency is determined from the student's response. The results of the study based on the results of the average N-gain test obtained a value of 0.41 with a medium category. Student responses showed that they were not satisfied with online learning. So it can be concluded that the effectiveness of the physics learning device model of problem based learning on harmonic vibration material is effective and efficient for improving problem solving abilities and critical thinking skills of students.
本研究旨在确定基于问题型学习模式的物理学习工具在提高学生有效和高效的问题解决能力和批判性思维能力方面的有效性。使用的研究类型是研究与开发(research and development)，正在开发的研究模型是4D模型。有效性是通过有限的试验来获得n增益测试值，效率是由学生的响应来确定的。本研究结果基于平均n增益试验的结果，得到了中等类别的0.41值。学生的反应表明，他们对在线学习并不满意。由此可见，谐波材料问题学习的物理学习装置模式对提高学生的问题解决能力和批判性思维能力是有效和高效的。
{"title":"Efektivitas Perangkat Pembelajaran Fisika Berbasis Model Problem Based Learning untuk Meningkatkan Kemampuan Pemecahan Masalah dan Kemampuan Berpikir Kritis Peserta Didik","authors":"Winda Astarini Aripin, Hairunisyah Sahidu, Muh. Makhrus","doi":"10.29303/jppfi.v3i1.120","DOIUrl":"https://doi.org/10.29303/jppfi.v3i1.120","url":null,"abstract":"This study aims to determine the effectiveness of physics learning tools based on problem based learning models to improve effective and efficient problem solving and critical thinking skills of students. The type of research used is research and development (Research and Development) with the research model being developed is 4D Models. The effectiveness is obtained from a limited trial to get the N-gain test value and the efficiency is determined from the student's response. The results of the study based on the results of the average N-gain test obtained a value of 0.41 with a medium category. Student responses showed that they were not satisfied with online learning. So it can be concluded that the effectiveness of the physics learning device model of problem based learning on harmonic vibration material is effective and efficient for improving problem solving abilities and critical thinking skills of students.","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129403446","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}
Maya Astika, H. Hikmawati, S. Sutrio, Gunawan Gunawan
This development research aims to produce a product in the form of a discovery learning model to improve students' critical thinking skills in physics. The research design used is the 4D model which consists of define, design, develop and disseminate. Products developed in the form of a syllabus, lesson plans (RPP), material analysis, student worksheets (LKPD), and test instruments in the form of description questions. Data collection techniques using validation sheets and questions. The validity data were analyzed by determining the final mean value (NA) of the expert validators and practitioners. The improvement of critical thinking skills is analyzed using standard gain from the results before and after the learning process. Data validity results show that the learning device developed is at a very valid level with a final average value of 3.48 so that the developed device is suitable for use in learning. The data on the reliability results of the learning tools developed with an average value of 93.21% were included in the reliable category. The ability to think critically with discovery learning models has increased with a gain value of 0.38. Based on the results of these data, it can be concluded that the discovery learning model that was developed is effective to improve students' critical thinking skills in physics.Keywords: Learning tools, discovery learning model, critical thinking skills in physics
{"title":"Development of Discovery Learning Model Learning Tools to Improve Students' Physical Critical Thinking Ability","authors":"Maya Astika, H. Hikmawati, S. Sutrio, Gunawan Gunawan","doi":"10.29303/jppfi.v3i1.114","DOIUrl":"https://doi.org/10.29303/jppfi.v3i1.114","url":null,"abstract":"This development research aims to produce a product in the form of a discovery learning model to improve students' critical thinking skills in physics. The research design used is the 4D model which consists of define, design, develop and disseminate. Products developed in the form of a syllabus, lesson plans (RPP), material analysis, student worksheets (LKPD), and test instruments in the form of description questions. Data collection techniques using validation sheets and questions. The validity data were analyzed by determining the final mean value (NA) of the expert validators and practitioners. The improvement of critical thinking skills is analyzed using standard gain from the results before and after the learning process. Data validity results show that the learning device developed is at a very valid level with a final average value of 3.48 so that the developed device is suitable for use in learning. The data on the reliability results of the learning tools developed with an average value of 93.21% were included in the reliable category. The ability to think critically with discovery learning models has increased with a gain value of 0.38. Based on the results of these data, it can be concluded that the discovery learning model that was developed is effective to improve students' critical thinking skills in physics.Keywords: Learning tools, discovery learning model, critical thinking skills in physics","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115674563","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}
Abstract: This study aims to develop problem-based learning tools to improve critical thinking skills that are valid, efficient, and effective for use in learning on harmonious vibration material. This research is a type of research and development (R&D) with a 4D model. At the define stage, is the initial stage for defining the problem. The design stage, designing learning device products in the form of syllabus, lesson plans, student worksheet, critical thinking skills test instruments, and learning videos. The develop stage is the development of the device from the results of the validity of the learning tools obtained from the validation results of 6 validators consisting of 3 expert validators and 3 on validators. The practicality or efficiency of the learning device is obtained from the responses of students and the learning implementation sheet. Increased critical thinking ability of students to analyze by determining the standard acquisition of the results before and after learning. The results of the validation show that the learning device components are in the very valid category for the syllabus and valid enough for lesson plans, student worksheet, critical instrument test skills, and video learning which means that they are good enough to be used in learning Reliability of the syllabus, lesson plans, student worksheet, critical thinking ability test instruments, and learning videos above 75% show all components that are in the reliable category. The results of student responses, as well as the implementation of learning are in the very practical category. Student learning outcomes have increased with a acquisition value of 0.66 which is in the medium category. Based on these results, it can be learned that problem-based learning tools are valid, efficient and effective for use in learning and problem-based learning models that affect students’ critical thinking skills. The last stage is to disseminate the dissemination stage of the device where at this stage it is done by making journals to send. Keywords: Development of problem-based learning tools, critical thinking skills, harmonious vibration
{"title":"Pengaruh Model Pembelajaran Fisika Berbasis Masalah untuk Meningkatkan Kemampuan Berpikir Kritis","authors":"Siti Idiatul Hasanah, S. Susilawati, J. Rokhmat","doi":"10.29303/jppfi.v3i1.117","DOIUrl":"https://doi.org/10.29303/jppfi.v3i1.117","url":null,"abstract":"Abstract: This study aims to develop problem-based learning tools to improve critical thinking skills that are valid, efficient, and effective for use in learning on harmonious vibration material. This research is a type of research and development (R&D) with a 4D model. At the define stage, is the initial stage for defining the problem. The design stage, designing learning device products in the form of syllabus, lesson plans, student worksheet, critical thinking skills test instruments, and learning videos. The develop stage is the development of the device from the results of the validity of the learning tools obtained from the validation results of 6 validators consisting of 3 expert validators and 3 on validators. The practicality or efficiency of the learning device is obtained from the responses of students and the learning implementation sheet. Increased critical thinking ability of students to analyze by determining the standard acquisition of the results before and after learning. The results of the validation show that the learning device components are in the very valid category for the syllabus and valid enough for lesson plans, student worksheet, critical instrument test skills, and video learning which means that they are good enough to be used in learning Reliability of the syllabus, lesson plans, student worksheet, critical thinking ability test instruments, and learning videos above 75% show all components that are in the reliable category. The results of student responses, as well as the implementation of learning are in the very practical category. Student learning outcomes have increased with a acquisition value of 0.66 which is in the medium category. Based on these results, it can be learned that problem-based learning tools are valid, efficient and effective for use in learning and problem-based learning models that affect students’ critical thinking skills. The last stage is to disseminate the dissemination stage of the device where at this stage it is done by making journals to send. Keywords: Development of problem-based learning tools, critical thinking skills, harmonious vibration","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445166","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}
Randi Kurnia Hidayat, M. Makhrus, Muhammad Iman Darmawan
Universita Mataram conducts Introduction to School Field aims to allow students of undergraduate education programs to gain factual and contextual educational experience in applying a set of knowledge, attitudes and skills that can support the achievement of professional competency mastery, pedagogic, personality, and social as a whole, which boils down to the formation of prospective teachers or educators who are professional and characterful, and able to apply it in the implementation of education and teaching, both in school and outside the school responsibly
{"title":"Pelaksanaan Pengenalan Lapangan Persekolahan (PLP) FKIP Universitas Mataram Bidang Studi Pendidikan Fisika di MAN 1 Lombok Timur","authors":"Randi Kurnia Hidayat, M. Makhrus, Muhammad Iman Darmawan","doi":"10.29303/jppfi.v3i1.115","DOIUrl":"https://doi.org/10.29303/jppfi.v3i1.115","url":null,"abstract":"Universita Mataram conducts Introduction to School Field aims to allow students of undergraduate education programs to gain factual and contextual educational experience in applying a set of knowledge, attitudes and skills that can support the achievement of professional competency mastery, pedagogic, personality, and social as a whole, which boils down to the formation of prospective teachers or educators who are professional and characterful, and able to apply it in the implementation of education and teaching, both in school and outside the school responsibly","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125084509","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}
Abstract—Physics practicum is needed in understanding the concept of learning, one of which is the law to determine the viscosity value of a liquid. One method that is often used in determining the viscosity coefficient is the falling ball method, however, there is a weakness in this method, namely the drop time is very fast so it is difficult to get the exact and accurate time so that the calculation of the viscosity coefficient value is not accurate. Therefore a detection device is needed so that it can get a more precise and accurate time value. This study aims to determine the viscosity coefficient of cooking oil at room temperature with an infrared sensor as a time detector so that it is expected to obtain a precise and accurate time and to produce a more accurate calculation of the viscosity coefficient. The purpose of this research is to make a viscosity tool that has good data accuracy and can be used in physics practicum.
{"title":"Rancang Bangun Alat Viskositas Zat Cair Menggunakan Sensor Inframerah Sebagai Detektor Waktu Pada Praktikum Viskositas Zat Cair Matakuliah Fisika Dasar","authors":"Agus Wahid Habiburrohman, Fauzi Fauzi","doi":"10.29303/jppfi.v2i2.57","DOIUrl":"https://doi.org/10.29303/jppfi.v2i2.57","url":null,"abstract":"Abstract—Physics practicum is needed in understanding the concept of learning, one of which is the law to determine the viscosity value of a liquid. One method that is often used in determining the viscosity coefficient is the falling ball method, however, there is a weakness in this method, namely the drop time is very fast so it is difficult to get the exact and accurate time so that the calculation of the viscosity coefficient value is not accurate. Therefore a detection device is needed so that it can get a more precise and accurate time value. This study aims to determine the viscosity coefficient of cooking oil at room temperature with an infrared sensor as a time detector so that it is expected to obtain a precise and accurate time and to produce a more accurate calculation of the viscosity coefficient. The purpose of this research is to make a viscosity tool that has good data accuracy and can be used in physics practicum.","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123283035","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}
Raka Panji Satria, Hairunisyah Sahidu, S. Susilawati
This study aims to determine the effectiveness of guided inquiry learning models assisted by virtual laboratories to improve students' creative thinking skills. This type of research is Research and Development (R&D) with a 4D model consisting of Define, Design, Develop, and Disseminate. Products developed in the form of a syllabus, online learning implementation plans, student worksheets, and creative thinking skills test instruments. effectiveness obtained from limited trials to get the N-gain score. The results showed an increase in the value of creative thinking skills with the greatest increase in the flexibility indicator of 0.64 in the medium category. So it can be concluded that the guided inquiry model physics learning device assisted by a virtual laboratory is effective for improving the creative thinking skills of students, especially on indicators of flexibility.
{"title":"Efektifitas Perangkat Pembelajaran Fisika Model Inkuiri Terbimbing Berbantuan Laboratorium Virtual untuk Meningkatkan Keterampilan Berpikir Kreatif Peserta Didik","authors":"Raka Panji Satria, Hairunisyah Sahidu, S. Susilawati","doi":"10.29303/jppfi.v2i2.74","DOIUrl":"https://doi.org/10.29303/jppfi.v2i2.74","url":null,"abstract":"This study aims to determine the effectiveness of guided inquiry learning models assisted by virtual laboratories to improve students' creative thinking skills. This type of research is Research and Development (R&D) with a 4D model consisting of Define, Design, Develop, and Disseminate. Products developed in the form of a syllabus, online learning implementation plans, student worksheets, and creative thinking skills test instruments. effectiveness obtained from limited trials to get the N-gain score. The results showed an increase in the value of creative thinking skills with the greatest increase in the flexibility indicator of 0.64 in the medium category. So it can be concluded that the guided inquiry model physics learning device assisted by a virtual laboratory is effective for improving the creative thinking skills of students, especially on indicators of flexibility.","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116831510","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}
Ancaman kerusakan bangunan dan infrasruktur lainnya disebabkan oleh adanya zona lemah di bawah permukaan yang dapat menyebabkan bencana alam, seperti likuifaksi, khususnya di pesisir pantai, yang dicirikan memiliki muka air tanah dangkal, tingkat kepadatan lapisan tanah sangat lepas dan geologi daerah terdiri dari batu pasir dan endapan aluvium. Penelitian ini bertujuan untuk menentukan nilai hambatan jenis (resistivitas) dan hambatan konus dari zona lemah di Desa Sekotong Barat, Kecamatan Sekotong Kabupaten Lombok Barat dan bagaimana hubungan empiris nilai resistivitas dengan hambatan konus. Penelitian ini dilakukan menggunakan metode geolistrik konfigurasi Wenner dengan jumlah 6 lintasan dan panjang setiap lintasan 200 meter dan juga menggunakan uji sondir pada 3 titik. Berdasarkan hasil interpretasi data diperoleh litologi batuan di daerah penelitian terdiri dari lapisan pasir jenuh air, lempung lanauan, lempung pasiran dan pasir padat. Hasil inversi data geolistrik menunjukkan keberadaan zona lemah membentang pada seluruh daerah penelitian kecuali pada lintasan 3 dan lintasan 4 yang ditafsirkan tidak berbahaya bagi bangunan diatasnya karena tersusun oleh zona kuat. Diperoleh zona lemah dengan nilai resistivitas kurang dari 10 yang diidentifikasi sebagai lapisan pasir jenuh air dan lempung lanauan dan dibuktikan pula dengan hasil uji sondir memiliki nilai hambatan konus kurang dari 20 kg/cm2. Resistivitas dan hambatan konus berbanding lurus dan hubungan empiris yang dihasilkan berupa grafik polinomial orde tiga dengan koefisien determinasi.0,804
{"title":"Korelasi Hambatan Jenis dan Hambatan Konus untuk Identifikasi Zona Lemah Di Desa Sekotong Barat, Kecamatan Sekotong, Kabupaten Lombok Barat","authors":"S. Minardi, Rima Yudiana, Alfina Taurida Alaydrus","doi":"10.29303/jppfi.v2i2.73","DOIUrl":"https://doi.org/10.29303/jppfi.v2i2.73","url":null,"abstract":"Ancaman kerusakan bangunan dan infrasruktur lainnya disebabkan oleh adanya zona lemah di bawah permukaan yang dapat menyebabkan bencana alam, seperti likuifaksi, khususnya di pesisir pantai, yang dicirikan memiliki muka air tanah dangkal, tingkat kepadatan lapisan tanah sangat lepas dan geologi daerah terdiri dari batu pasir dan endapan aluvium. Penelitian ini bertujuan untuk menentukan nilai hambatan jenis (resistivitas) dan hambatan konus dari zona lemah di Desa Sekotong Barat, Kecamatan Sekotong Kabupaten Lombok Barat dan bagaimana hubungan empiris nilai resistivitas dengan hambatan konus. Penelitian ini dilakukan menggunakan metode geolistrik konfigurasi Wenner dengan jumlah 6 lintasan dan panjang setiap lintasan 200 meter dan juga menggunakan uji sondir pada 3 titik. Berdasarkan hasil interpretasi data diperoleh litologi batuan di daerah penelitian terdiri dari lapisan pasir jenuh air, lempung lanauan, lempung pasiran dan pasir padat. Hasil inversi data geolistrik menunjukkan keberadaan zona lemah membentang pada seluruh daerah penelitian kecuali pada lintasan 3 dan lintasan 4 yang ditafsirkan tidak berbahaya bagi bangunan diatasnya karena tersusun oleh zona kuat. Diperoleh zona lemah dengan nilai resistivitas kurang dari 10 yang diidentifikasi sebagai lapisan pasir jenuh air dan lempung lanauan dan dibuktikan pula dengan hasil uji sondir memiliki nilai hambatan konus kurang dari 20 kg/cm2. Resistivitas dan hambatan konus berbanding lurus dan hubungan empiris yang dihasilkan berupa grafik polinomial orde tiga dengan koefisien determinasi.0,804","PeriodicalId":430441,"journal":{"name":"Jurnal Penelitian dan Pembelajaran Fisika Indonesia","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841093","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}
Muhammad Al Faris, Supriadi Supriadi, Januar Srikandijana
Telah dirancang sebuah sistem deteksi pergerakan obyek pada lintasan linear air track untuk eksperimen mekanika gerak lurus. Dalam perancangan ini digunakan mikrokontroler Arduino Uno R3, dua pasang led imframerah dan fotodioda, sensor ultrasonik Ping sebagai sensor jarak, lintasan linear air track dengan panjang 240 cm, blower dan vehicle. Berdasarkan hasil pengujian alat yang dibuat dengan alat standar stopwatch, pada percobaan gerak lurus diperoleh persentase kesalahan pengukuran waktu maksimum sebesar 1,4%, dan persentase kesalahan perhitungan kecepatan maksimum sebesar 1,35%. Pada percobaan gerak lurus berubah beraturan diperoleh persentase kesalahan pengukuran waktu maksimum sebesar 1,46%, dan persentase kesalahan perhitungan kecepatan maksimum sebesar 2,46%. Berdasarkan hasil penelitian dan pengujian yang telah dilakukan dengan nilai persentase kesalahan yang diperoleh, menunjukkan bahwa perancangan alat deteksi pergerakan obyek yang telah dilakukan mulai dari perangkat masukan dan keluaran hingga pengimplementasian di dalam pengukuran waktu dan jarak pada percobaan GLB dan GLBB dapat bekerja dengan baik dan dapat digunakan untuk kegiatan eksperimen mekanika gerak lurus di laboratorium. Keywords: Linear Air Track, Gerak Lurus, Arduino
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