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INDONESIA
Jurnal Pendidikan Fisika Indonesia
Published by Universitas Negeri Semarang
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education,
Education Physics
Arjuna Subject : -
Articles 553 Documents
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Developing Critical Thinking Skills-Based Learning Set of Basic Physics Subject Using Edmodo in Android Platform
Jurnal Pendidikan Fisika Indonesia Vol 15, No 1 (2019)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v15i1.14350

Abstract

The purpose of this study was to obtain a set of Basic Physics learning, which was developed based on critical thinking skills using the Android platform Edmodo application. This research type was a research and development by analysis, design, development, implementation, and evaluation (ADDIE) model. The results of the validation of content and learning set by the expert indicated valid and reliable categories and can be used with minor revisions or without revisions in Basic Physics learning. The results of critical thinking skills measurement showed a significant increase of N-Gain in the medium category and practical for application in learning. The results of the questionnaire analysis showed the positive responses to Basic Physics learning, and they said that it was easy and practical to use. Basic Physics learning set which was developed in this research met the aspects of validity, practicality, and effectiveness which is promising to be applied as the media of online learning in the higher education system in the era of industrial revolution 4.0.Tujuan penelitian ini adalah memperoleh seperangkat pembelajaran fisika dasar berbasis keterampilan berpikir kritis menggunakan aplikasi edmodo berplatform android. Penelitian ini termasuk penelitian dan pengembangan mengikuti langkah – langkah pengembangan model ADDIE antara lain analysis, design, development, implementation dan evaluation. Hasil validasi konten dari ahli media menyatakan bahwa perangkat pembelajaran memiliki kategori valid dan reliabel serta dapat digunakan dengan revisi kecil atau tanpa revisi. Hasil penelitian menunjukkan bahwa keterampilan berpikir kritis mengalami peningkatan yang signifikan dengan N-Gain kategori sedang, hal ini menunjukkan bahwa perangkat pembelajaran memiliki kategori efektif. Hasil angket tentang  respon mahasiswa terhadap pembelajaran fisika dasar adalah positif dan mudah digunakan, hal ini menunjukkan perangkat pembelajaran memiliki kategori praktis. Sehingga dapat diambil kesimpulan bahwa perangkat pembelajaran fisika dasar berbasis keterampilan berpikir kritis menggunakan aplikasi edmodo berplatform android yang dikembangkan memiliki kualitas kriteria baik karena memenuhi aspek validitas, kepraktisan dan keefektifan. Manfaat penelitian ini yaitu sebagai media pembelajaran daring (learning online)  fisika dasar dalam sistem pendidikan perguruan tinggi pada era revolusi industri 4.0.
THE EFFECTIVENESS OF E-LAB TO IMPROVE GENERIC SCIENCE SKILLS AND UNDERSTANDING THE CONCEPT OF PHYSICS
Jurnal Pendidikan Fisika Indonesia Vol 12, No 1 (2016)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v12i1.3931

Abstract

The aimed of this sudy are: (1) investigate the effectiveness of E-Lab to improve generic science skills and understanding the concepts oh physics; and (2) investigate the effect of generic science skills towards understanding the concept of students after learning by using the E-Lab. The method used in this study is a pre-experimental design with one group pretest-posttest. Subjects were students of Physics Education in University PGRI Semarang with methode random sampling. The results showed that: (1) learning to use E-Lab effective to increase generic science skills of students; and (2) Generic science skills give positive effect on student conceptual understanding on the material of the photoelectric effect, compton effect, and electron diffraction. Tujuan penelitian ini yaitu: (1) menyelidiki efektifitas E-Lab untuk meningkatkan keterampilan generik sains dan pemahaman konsep mahasiswa; dan (2)  menyelidiki pengaruh keterampilan generik sains terhadap pemahaman konsep mahasiswa setelah dilakukan pembelajaran dengan menggunakan E-Lab. Metode penelitian yang digunakan dalam penelitian ini adalah pre-experimental dengan desain one group pretest-posttest. Subjek penelitian adalah mahasiswa Program Studi Pendidikan  Fisika  Universitas PGRI Semarang, dengan metode pengambilan sampel penelitian secara random. Hasil penelitian menunjukkan bahwa bahwa: (1) pembelajaran menggunakan E-Lab efektif untuk meningkatkan keterampilan generik sains mahasiswa; dan  (2) Keterampilan generik sains berpengaruh positif terhadap pemahaman konsep mahasiswa pada materi efek fotolistrik, efek compton, dan difraksi elektron. 
THE PROBLEM SOLVING LEARNING MODEL BY USING VIDEO RECORDING ON EXPERIMENTS OF KINEMATICS AND DYNAMICS TO IMPROVE THE STUDENTS COGNITION AND METACOGNITION
Jurnal Pendidikan Fisika Indonesia Vol 13, No 1 (2017)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v13i1.10154

Abstract

This research aimed to improve students’s cognition and metacognition through kinematics and dynamics of particle experiment assissted by video recording and tracker software analysis. The research used problem solving learning model which developed using R D method with 4-D steps, they are define, design, develop, and disseminate. The research involved 86 physics education students academic year 2013/2014 at one of the universities in Medan. The research method is quasi-experimental using randomized control group pretest-posttest design. The experimental class used problem solving learning model assisted by video recording and the control class used direct learning model. The cognition data were collected using multiple-choice test and meta-cognition data were collected using essay test. The students’s cognition and metacognition improvement characterized by the normalized gain score. The research result show that the use of video recording and tracker software analysis was improve the students’ cognition and metacognition in Kinematics and Dynamics topic in moderate category.
DEVELOPING SCIENCE LEARNING INSTRUMENTS BASED ON LOCAL WISDOM TO IMPROVE STUDENT’S CRITICAL THINKING SKILLS
Jurnal Pendidikan Fisika Indonesia Vol 11, No 2 (2015)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v11i2.4228

Abstract

This research aims to develop learning instruments of science i.e. textbook, student worksheet, syllabus, and lesson plan based on local wisdom that can improve critical thinking skills of junior high school students. Indicators of student's critical thinking skills include interpretation, analysis, evaluation and inference. This study is a Research and Development by using analysis, desaign, development, implementation and evaluation (ADDIE) method. Expert validation was conducted with the expert test related to the format, content/material, and language. The instruments ware used on the collection data are documentations, validation sheets, observation sheets, and tests. The result of the instrument in the 7th grade of junior high school at Bustanul Ulum Panti Jember showed that there are the improvement of critical thinking skills of student based on the data from test and observation. According to indicator of critical thinking skills, the n-gain value is around 0.47, means moderate interpretation. The conclusions of this research are the learning instruments of science based on local wisdom which develope in the valid category is quite effective to improve students' critical thinking skills.Penelitian ini bertujuan mengembangkan perangkat pembelajaran IPA yang berupa Buku ajar, LKS, Silabus, dan RPP berbasis kearifan lokal untuk meningkatkan kemampuan berpikir kritis siswa SMP. Indikator kemampuan berpikir kritis siswa mencakup interprestasi, analisis, evaluasi dan inferensi. Penelitian ini merupakan penelitian Research and Development dengan metode Analysis, Desaign, Development, Implimentation and Evaluastion (ADDIE). Validasi ahli dilakukan dengan uji expert terkait dengan format, isi/materi, dan bahasa. Instrumen yang digunakan dalam pengambilan data adalah dokumentasi, lembar validasi, lembar observasi, dan tes. Hasil ujicoba instrumen di kelas VII SMP Bustanul ulum Panti Kabupaten Jember menunjukkan adanya peningkatan kemampuan berpikir kritis siswa, baik yang diambil dari teknik tes maupun observasi. Berdasarkan indikator kemampuan berpikir kritis diperoleh nilai rata-rata N gain 0,47 dengan interpretasi sedang. Simpulan penelitian ini menunjukkan perangkat pembelajaran IPA berbasis kearifan lokal yang dikembangkan dalam katagori valid sehingga cukup efektif dalam meningkatkan kemampuan berpikir kritis siswa.
The Development of Experimental Absorption Based on Arduino-Uno and Labview on Light Radiation by Colourful Surface
Jurnal Pendidikan Fisika Indonesia Vol 16, No 1 (2020)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v16i1.23596

Abstract

This development research aims to make a tool and test its ability to absorb the heat in light radiation by colored surfaces (black, dark green, blue, white). The benefit of this research is to present a simple laboratory that can be used in physics education class as a test tool for heat absorption. The research method that applied is Microcomputer Based Laboratory (MBL). The software that used is LabVIEW which connected to Arduino Uno hardware and heat source. The appropriate set of tools and materials is then tested for eligibility. The feasibility test of the device is reviewed from the aspect of content, linguistic, presentation and graphic by an expert validator as well as the compatibility of the findings with the theory. The results found that the darker the color of the object, the greater the ability of heat absorption and vice versa. Changes in power at a light source can affect changes in maximum temperature in the color absorption of heat. The greater the power provided by the light source, the greater the increase in maximum temperature. This development research concludes that the tools are feasible to use and appropriate based on existing theories.
Kajian Fisika Aliran Material Granular Dedak Gandum Di Dalam Saluran Microfluidic
Jurnal Pendidikan Fisika Indonesia Vol 10, No 1 (2014)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v10i1.3053

Abstract

Perkembangan teknologi mikroelektronik telah melahirkan suatu cabang ilmu baru yaitu microfluidics. Teknologi ini dapat memanipulasi instrumentasi laboratorium menjadi satu chip. Proses pembuatan chip diawali dengan pembuatan mask kemudian dilanjutkan dengan pencetakan master untuk kemudian dituangkan larutan Polydimethil siloxane (PDMS) dan diikatkan dengan kaca melalui teknologi plasma. Kemudian setelah chip dibuat, dilakukanuji microfluidics dengan melewatkan campuran material granular dedak gandum dan air di dalam saluran chip tersebut dengan kecepatan 5,000 μl/jam dan pola aliran direkam dengan menggunakan kamera kecepatan tinggi. Dari hasil rekaman, gambar dianalisis dengan menggunakan persamaan Navier-Stokes dan dilakukan simulasi untuk dapat menduga pola aliran yang terjadi di dalam saluran.Kesimpulan yang didapatkan menunjukkan bahwa aliran fluida yang diperoleh bersifat non-newtonian, dan partikel dedak gandum memiliki sifat tabrakan inleastik. The development of microelectronic technology leads to a new technology branch, namely microfluidics. This technology can manipulate a complicated laboratory instrument into a single chip. The process of making chip starts with making mask, molding a master, pouring of Polydimethilsiloxane (PDMS) into the master, and then making the bonding between the PDMS and glass by using plasma technology. The next step is microfluidics testing by passing the mixing of granular material wheatbran and dionized water through the chip’s channel with the speed of 5,000 μl/hour, and recording the flow of fluid by using high speed camera. The result was then analyzed by Navier-Stokes equation and employed the simulation to predict the flow inside the chip. It can be concluded that the characteristics of fluid’s flow found are non-newtonian fluid and the wheatbran particle has inelastic collision.
IMPROVEMENT OF GRAPH INTERPRETATION ABILITY USING HYPERTEXT-ASSISTED KINEMATIC LEARNING AND FORMAL THINKING ABILITY
Jurnal Pendidikan Fisika Indonesia Vol 14, No 1 (2018)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v14i1.9444

Abstract

The effectiveness of hypertext media in improving graph interpretation ability is investigated in this paper. In addition, joint ability of the formal thinking to improve the graph ability of prospective students is considered. The research design used is the one-group pretest-posttest experimental design is carried out in the research by taking 36 students on from Physics Education Program in one institute for teacher education in Medan. The test consists of graph interpretation ability test in the topic of kinematics and Test of Logical Thinking (TOLT or formal thinking) before learning and graph interpretation ability test after learning. The data are then analysed by using SPSS based two ways Analisys of Variance (ANOVA) method. The results show that the ability to interpretate graph is significantly improved by using hypertext media assisted kinematic learning.
PENGUKURAN KUALITAS CITRA DIGITAL COMPUTED RADIOGRAPHY MENGGUNAKAN PROGRAM PENGOLAH CITRA
Jurnal Pendidikan Fisika Indonesia Vol 12, No 2 (2016)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v12i2.5950

Abstract

Penelitian yang telah dilakukan adalah pembuatan dan penghitungan kualitas citra digital menggunakan program Modulation Transfer Function (MTF) pada sistem Computed Radiography (CR) untuk kegiatan Quality Control (QC). MTF dapat digunakan untuk menganalisis resolusi spasial citra digital secara akurat. Pada penelitian ini menggunakan phantom yang terbuat dari tembaga berukuran 15x15 cm dengan ketebalan 1 mm. Phantom dieksposi dengan variasi tegangan 50 kV, 60 kV, 70 kV dan 81 kV dan masing-masing dilakukan variasi arus. Data yang diperoleh berupa file citra digital radiografi format DICOM yang kemudian dilakukan analisis kualitas citranya menggunakan PC diluar sistem CR dengan metode MTF. Metode ini sangat efisien dalam melakukan QC resolusi spasial secara kuantitatif sehingga dapat digunakan untuk menilai kualitas pesawat CR. Hasil pengukuran menunjukkan bahwa semakin tinggi tegangan yang digunakan, maka kualitas citra semakin baik dengan arus optimal pada rentang 4-8 mAs dengan rata-rata nilai resolusi spasial 7,26 lp/mm.The research was analyzing of digital image quality by using Modulation Transfer Function (MTF) on Computed Radiography (CR) system for Quality Control (QC). MTF can be used for analyzing digital image spatial resolution accurately. The research used phantom that made of 15x15 cm2 copper and 1 mm thickness. The phantom was expounded with voltage variations by 50 kV, 60 kV, 70 kV dan 81 kV and each of them have been taken by variations of the current. The the image quality of data obtained in the form of radiography digital image files with DICOM format were then analyzed using PC out of CR system with methode of MTF. This methode is really efficient for QC spatial resolution quantitatively and so it can be used for assesing the quality of CR. The measurement results showed that the higher the voltage, the better image quality with optimal current was on the range between 4-8 mAs with the average value of MTF 7,26 lp/mm.
PERCOBAAN GRAVITY CURRENT UNTUK MENGUJI KONSEP HIDRODINAMIKA DAN HUKUM KEKEKALAN MASSA PADA FLUIDA INKOMPRESIBEL EXPERIMENTS ON GRAVITY CURRENT TO EXAMINE CONCEPTS OF HYDRODYNAMICS AND MASS CONSERVATION FOR INCOMPRESSIBLE FLUIDS
Jurnal Pendidikan Fisika Indonesia Vol 11, No 1 (2015)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v11i1.4006

Abstract

Konsep hidrodinamika membicarakan sistem fisis berupa fluida yang mengalir. Fenomena alam yang berkaitan dengan konsep hidrodinamika adalah penetrasi air laut ke daratan dan limbah aliran sungai ke pantai pada arah yang berlawanan di estuari (tempat pertemuan antara air laut dan air sungai). Fenomena ini dapat dipelajari melalui percobaan gravity current di laboratorium sebagai sistem dua fluida dengan beda kerapatan. Tujuan penelitian adalah membuktikan perbedaan kerapatan sebagai gaya penggerak internal sistem tersebut dan keberlakuan kekekalan massa pada fluida inkompresibel (tidak mampu mampat). Serangkaian percobaan dilakukan dengan variasi perbedaan kerapatan dan ketinggian permukaan air dalam tangki. Hasil-hasil percobaan menunjukkan bahwa perbedaan kerapatan merupakan penyebab gerak sistem. Kecepatan tak-berdimensi gravity currrent dalam percobaan ditemukan sebesar 0,45 ± 0,02 menunjukkan pengaruh friksi adalah kecil sepanjang perambatan gravity currrent dalam tangki. Perubahan volume terukur relatif terhadap volume awal hanya 0,4% menunjukkan volume dan massa sistem adalah kekal sesuai dengan teori fisika untuk fluida inkompresibel. The concept of hydrodynamics involves moving fluids. Relevant natural phenomena are seawater intruding to the land and a river discharge flowing to the ocean in the opposite direction in estuaries. These can be examined using laboratory experiments on gravity current as a system of two fluids of different  densities. The aims of this research are to prove that the density difference is internal driving force for the current and that mass is conserved for incompressible fluids. A number of runs were performed by varying the density difference and the surface height in the reservoirs. The results show that the density difference is a source for the horizontal motion of the current. The non-dimensional current speed is 0,45 ± 0,02 implying that friction is small along the propagation of the current. In all runs, a small fraction of only 0,4% is accounted for the change in water volume indicating that volume and mass are conserved for incompressible fluids. 
Prediction of Dengue Hemorrhagic Fever Cases Based on Weather Parameters Using Back Propagation Neural Networks (Case Study in Pontianak City)
Jurnal Pendidikan Fisika Indonesia Vol 15, No 2 (2019)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v15i2.19633

Abstract

Research has been conducted by predicting cases of dengue hemorrhagic fever based on weather parameters. The data used are weather parameters in the form of air temperature data, air humidity, rainfall, duration of solar radiation and wind speed as input data and data on dengue hemorrhagic fever cases as the target data. This study aims to see the confirmation of dengue hemorrhagic parameters in Pontianak. The benefit in the field of education is that students and teachers are aware of the dangers of dengue because it can cause death. The method used is back propagation neural networks with the best network architecture in predicting cases of dengue hemorrhagic fever are [50 40 30 1] and binary sigmoid activation function, bipolar sigmoid and linear function. The activation function will determine whether the signal from the neuron input will be forwarded to other neurons and is also used to determine the output of a neuron. Network training correlation value is 0.9995 (very strong correlation) with MSE 0.0001 and network testing is 0.9325 (very strong correlation) with MSE 1.61. Determination coefficient serve as accuracy with values obtained is 0.85, which means that 85% of weather parameters can be used as input in predicting the incidence of dengue hemorrhagic fever in Pontianak City.

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