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<![CDATA[VIRTUAL LABORATORY OF ELECTRICITY CONCEPT TO IMPROVE PROSPECTIVE PHYSICS TEACHERS CREATIVITY ]]>
<![CDATA[Gunawan, G.]]>;
<![CDATA[Harjono, A.]]>;
<![CDATA[Sahidu, H.]]>;
<![CDATA[Herayanti, L.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.9234
<![CDATA[A virtual laboratory for electrical materials has been developed in this study. The virtual laboratory was developed as an alternative laboratory due to the limited equipment of physics experiments and simultaneously assisting students in visualizing abstract concepts in physics. This article discusses the results of testing on the effects of virtual laboratories on improving the creativity of prospective physics teachers. Measurable creativity includes verbal and figural creativity. The model testing process uses the quasi-experimental method. The participant of this research is prospective physics teachers in Faculty of Teacher Training and Education, University of Mataram. The research instrument used in the form of tests of verbal and figural creativity related to the electrical material being studied. The results showed that there is a difference in the improvement of prospective physics teachers’ creativity after learning in both groups. In general, the increase in creativity in the experimental group is higher than the control group. The increase in verbal and figural creativity of the two groups also differed significantly. In both groups, the increase of verbal creativity is higher than that of figural creativity. This suggested that the developed virtual lab model proved to enhance the creativity of prospective physics teachers.]]>
<![CDATA[THE USE OF INTERACTIVE MULTIMEDIA (MACROMEDIA FLASH) TO INCREASE CREATIVE THINKING ABILITY OF STUDENTS IN BASIC PHYSICS SUBJECT ]]>
<![CDATA[Marnita, M.]]>;
<![CDATA[Ernawati, E.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.4603
<![CDATA[Students were intellectuals who should have the ability to think critically, one of which is the creative thinking skills. However, the students' limited ability in basic physics as well as the limitations of using a variety of multimedia resulted in basic physics final exam results lower than 6 on average from maximum value of 10. This leads to the lower creative thinking skills of students in basic physics. This research is a Quasi Experiment research on students in the first semester of academic year 2014/2015 which amounted to 38 people. This research is expected to increase creative thinking skills as well as lecturers and students activities. Data obtained from this study is the data of creative thinking skills of students and data on the observation of activity of lecturers and students. The data were analysed by using formula percentage of completeness of learning outcomes, gain indexes and statistical t-test. Based on the results of data analysis it is showed that the use of interactive multimedia (Macromedia Flash) can improve creative thinking skills of students.]]>
<![CDATA[THE EFFECT OF ELECTRO MAGNETIC FIELD INTENSITY TO BIODIESEL CHARACTERISTICS ]]>
<![CDATA[Nufus, T. H.]]>;
<![CDATA[Setiawan, R. P. A.]]>;
<![CDATA[Hermawan, W.]]>;
<![CDATA[Tambunan, A. H.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.9477
<![CDATA[Various studies of diesel fuel optimization have been done, one of them by using a permanent magnet on the fuel line, the lack of magnetic field intensity decreases along with time increasing by using an electromagnetic field. The purpose of this study is to analyse the biodiesel fuel characteristics due to exposure of electromagnetic fields in terms of the viscosity and vibration of these fuel molecules. Electromagnetic field is generated from wire coil of 5000-9000 on galvanum pipe with diameter of 1.5 cm and length of 10 cm and connected to 12 V batteries. Here, biodiesel fuel is inserted in a galvanum tube, magnetized for 1200 s, and tested its viscosity of the falling ball system by viscometer. Fuel functional groups as well as vibrations between fuel molecules are tested with FTIR. The results show that the magnetized fuel changes. The viscosity of fuels from 2933 to 2478 and an increasing in the absorption of fuel molecules ranges from 13-58%. Therefore, the increasing of vibrating fuel molecules decreases its molecular attraction tug. These indicate that the magnetized fuel molecule causes a changing in the fuel molecule, cluster becomes de-clustered. It is a potential method to clarify the phenomenon of fuel magnetization due to its efficient combustion process.]]>
<![CDATA[THE DEVELOPMENT OF QUESTIONNAIRE TO INVESTIGATE STUDENTS ATTITUDES AND APPROACHES IN PHYSICS PROBLEM SOLVING ]]>
<![CDATA[Sirait, J.]]>;
<![CDATA[Sutrisno, L.]]>;
<![CDATA[Balta, N.]]>;
<![CDATA[Mason, A.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.6592
<![CDATA[This study aims to develop physics problem solving survey utilized to obtain students’ attitude and approach while solving physics problem. Several steps are conducted to develop the survey: validating, computing reliability, and testing. This research involves Physics Education students-Tanjungpura University who study at Fourth and Sixth semester. Furthermore, after questionnaire administered to the students, data are analysed through determining average score of the students and computing average percentage of students who are agree, neutral, and disagree based on semester and gender. The results show that the sixth semester students’ responses are more expertlike than those of the fourth semester students and female students are less expert than those male students. Based on semester and gender, majority of students have the same attitudes and approaches while solving problems. Students and experts have different attitudes about the role of mathematics in problem solving.]]>
<![CDATA[THICKNESS DEPENDENCE OF MAGNETIC SWITCHING DYNAMICS OF BARIUM-FERRITE AS A HIGH-DENSITY PERPENDICULAR MAGNETIC STORAGE MEDIA ]]>
<![CDATA[Aji, P. P.]]>;
<![CDATA[Rondonuwu, F. S.]]>;
<![CDATA[Wibowo, N. A.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.8499
<![CDATA[Micromagnetic study of material thickness dependence of Barium-ferrite nano-dot magnetization dynamics has been performed. The used materials characteristics in this research represent the properties of Barium-ferrite. Barium-ferrite was modeled as a nano-dot with a surface area of 50 × 50 nm2 and its thickness varies from 5 nm to 100 nm. This nano-dot was simulated using micromagnetic simulator software by solving Landau-Lifshitz-Gilbert equation. According to this study, obtained that the Barium-ferrite nano-dot has excellent thermal stability. Magnetization rate of this nano-dot decreases exponentially with the increase of thickness. The fastest magnetization rate observed in 5 nm of nano-dot thickness, meanwhile 45 nm for the slowest rate. Magnetization reversal mode of this Barium-ferrite nano-dot is dominated by domain wall nucleation and propagation. During the propagation of the domain wall, the exchange interaction becomes the main aspect compared to the other contributed energies.]]>
<![CDATA[THE EFFECT OF INQURY BASED LEARNING ON THE PROCEDURAL KNOWLEDGE DIMENSION ABOUT ELECTRIC AND MAGNET CONCEPT ]]>
<![CDATA[Yusrizal, Y.]]>;
<![CDATA[Halim, A.]]>;
<![CDATA[Junike, J.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.12080
<![CDATA[The purpose of this study to determine the effect of the use of inquiry-based learning to the increased dimensions of procedural knowledge in electrical magnetic material. The study used a quasi-experimental research methods with research design is non-equivalent control group design and a sampel are selected with the random sampling method. The experimental group was taught by the method of inquiry-based learning and the control group was taught by conventional methods. Collecting data using the instrument of multiple-choice test that developed through this research with category of validity is valid, reliability with category of reliable, index of discrimination with category of low, and level of difficulty with category of medium. The results of the data analysis by using the formula N-Gain and t-test showed that an increase in the dimensions of procedural knowledge siginificantly for experimental class and less significant for control class. Based on the results of this study suggested to the teacher to always use the method of inquiry learning that an increase in procedural knowledge dimension, especially for topics related to experimental physics.]]>
<![CDATA[Improving of The Student Learning in Lectures of General Physics I by Collaborative Learning Model Based on Saintific Approach ]]>
<![CDATA[Panggabean, D. D.]]>;
<![CDATA[Irfandi, I.]]>;
<![CDATA[Sinuraya, J.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.8570
<![CDATA[This research aim is improving the learning outcomes of the students on General Physics course I. This research was done at Physics Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan. The Collaborative Learning Model is based on a Scientific Approach. There are three subject matters: Kinematics, Dynamics, Effort and Energy. A set of 20 multiple choice questions was used in each cycle as the instrument to measure the student's learning outcomes which had been predictively validated. Based on SPSS 17.0 analysis result, this instrument was declared valid and has had high reliability. For each cycle a pre-test and post-test were implemented. The result shows that there is a significant increase of student learning outcomes for each cycle in respect to the value of normalized gain.]]>
<![CDATA[THE EFFECT OF ELECTRO MAGNETIC FIELD INTENSITY TO BIODIESEL CHARACTERISTICS ]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.9477
<![CDATA[Various studies of diesel fuel optimization have been done, one of them by using a permanent magnet on the fuel line, the lack of magnetic field intensity decreases along with time increasing by using an electromagnetic field. The purpose of this study is to analyse the biodiesel fuel characteristics due to exposure of electromagnetic fields in terms of the viscosity and vibration of these fuel molecules. Electromagnetic field is generated from wire coil of 5000-9000 on galvanum pipe with diameter of 1.5 cm and length of 10 cm and connected to 12 V batteries. Here, biodiesel fuel is inserted in a galvanum tube, magnetized for 1200 s, and tested its viscosity of the falling ball system by viscometer. Fuel functional groups as well as vibrations between fuel molecules are tested with FTIR. The results show that the magnetized fuel changes. The viscosity of fuels from 2933 to 2478 and an increasing in the absorption of fuel molecules ranges from 13-58%. Therefore, the increasing of vibrating fuel molecules decreases its molecular attraction tug. These indicate that the magnetized fuel molecule causes a changing in the fuel molecule, cluster becomes de-clustered. It is a potential method to clarify the phenomenon of fuel magnetization due to its efficient combustion process.]]>
<![CDATA[THE DEVELOPMENT OF QUESTIONNAIRE TO INVESTIGATE STUDENTS ATTITUDES AND APPROACHES IN PHYSICS PROBLEM SOLVING ]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
Show Abstract
|
Download Original
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Original Source
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Check in Google Scholar
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DOI: 10.15294/jpfi.v13i2.6592
<![CDATA[This study aims to develop physics problem solving survey utilized to obtain students’ attitude and approach while solving physics problem. Several steps are conducted to develop the survey: validating, computing reliability, and testing. This research involves Physics Education students-Tanjungpura University who study at Fourth and Sixth semester. Furthermore, after questionnaire administered to the students, data are analysed through determining average score of the students and computing average percentage of students who are agree, neutral, and disagree based on semester and gender. The results show that the sixth semester students’ responses are more expertlike than those of the fourth semester students and female students are less expert than those male students. Based on semester and gender, majority of students have the same attitudes and approaches while solving problems. Students and experts have different attitudes about the role of mathematics in problem solving.]]>
<![CDATA[THICKNESS DEPENDENCE OF MAGNETIC SWITCHING DYNAMICS OF BARIUM-FERRITE AS A HIGH-DENSITY PERPENDICULAR MAGNETIC STORAGE MEDIA ]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v13i2.8499
<![CDATA[Micromagnetic study of material thickness dependence of Barium-ferrite nano-dot magnetization dynamics has been performed. The used materials characteristics in this research represent the properties of Barium-ferrite. Barium-ferrite was modeled as a nano-dot with a surface area of 50 × 50 nm2 and its thickness varies from 5 nm to 100 nm. This nano-dot was simulated using micromagnetic simulator software by solving Landau-Lifshitz-Gilbert equation. According to this study, obtained that the Barium-ferrite nano-dot has excellent thermal stability. Magnetization rate of this nano-dot decreases exponentially with the increase of thickness. The fastest magnetization rate observed in 5 nm of nano-dot thickness, meanwhile 45 nm for the slowest rate. Magnetization reversal mode of this Barium-ferrite nano-dot is dominated by domain wall nucleation and propagation. During the propagation of the domain wall, the exchange interaction becomes the main aspect compared to the other contributed energies.]]>
