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Utama Alan Deta
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Jurnal Penelitian Fisika dan Aplikasinya (JPFA)
Published by Universitas Negeri Surabaya
ISSN : 20879946     EISSN : 24771775     DOI : https://doi.org/10.26740/jpfa
Core Subject : Science, Education,
Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) is available for free (open access) to all readers. The articles in JPFA include developments and researches in Physics Education, Classical Physics, and Modern Physics (theoretical studies, experiments, and its applications), including: Physics Education (Innovation of Physics Learning, Assessment and Evaluation in Physics, Media of Physics, Conception and Misconceptions in Physics, hysics Philosophy anPd Curriculum, and Psychology in Physics Education); Instrumentation Physics and Measurement (Sensor System, Control System, Biomedical Engineering, Nuclear Instrumentation); Materials Science (Synthesis and Characteristic Techniques, Advanced Materials, Low Temperature Physics, and Exotic Material); Theoretical and Computational Physics (High Energy Physics, Gravitation and Cosmology, Astrophysics, Nuclear and Particle Phenomenology, and Computational and Non-Linear Physics); and Earth Sciences (Geophysics and Astronomy).
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 1, No 1 (2011)" : 6 Documents clear
STUDI PENGARUH ORIENTASI SERAT FIBER GLASS SEARAH DAN DUA ARAH SINGLE LAYER TERHADAP KEKUATAN TARIK BAHAN KOMPOSIT POLYPROPYLENE Munasir, M
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p33-41

Abstract

Telah dilakukan fabrikasi dan uji kekuatan tarik bahan komposit Polypropylene (matrik) dengan Fiber Glass (sebagai penguat/filler) dengan perbandingan 95% dan 5% (matrix: filler), dengan filler tersusun secara singledirectional dan bidirectional dengan single layer. Massa keseluruhan dari sampel adalah 4 gram. Dari sampel yang sudah dibuat dilakukan uji kompaktibilitas untuk menetukan kekompakan ikatan antar muka antara matrik dan fillernya, dan juga dilakukan uji optimasi pemanasan untuk menentukan temperatur pembakaran yang paling optimum sehingga dihasilkan bahan komposit dengan sifat mekanik / kekuatan tarik terbesar. Berdasarkan uji kualitas ikatan antar muka atau kompaktibilitas komposit polypropylene dengan fiber Glass secara teoritis sudah terjadi kompaktibilitas antara kedua bahan tersebut sehingga membentuk bahan komposit, hal ini ditunjukan oleh grafik upper lower bond. Dan dari hasil uji kekuatan tarik diperoleh, kekuatan tarik terbesar terdapat pada bahan komposit dengan orientasi serat searah dibanding komposit tanpa serat (1,06:1) dan tanpa serat dibanding serat dua arah (1:0,87). Komposit dengan serat dua arah mempunyai kekuatan tarik terendah, hal ini disebabkan oleh arah serat yang tegak lurus dengan arah pembebanan akan memperlemah kekuatan tariknya, hal ini berkebalikan dengan nilai elogationnya yaitu orientasi serat dua arah mempunyai elongation yang lebih besar daripada serat searah. Selanjutnya disarankan untuk penelitian berikutnya, bahwa dalam pembuatan sampel uji diharapkan menggunakan alat yang dapat mengontrol suhu (stabil) dan dapat dilakukan untuk bahan komposit multilayer dengan perbedaan orientasi serat pada tiap lapisnya.
STRATEGI PENGAJARAN SAINS DENGAN ANALOGI SUATU METODE ALTERNATIF PENGAJARAN SAINS SEKOLAH Prastowo, Tjipto
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p8-13

Abstract

Peran analogi sebagai salah satu strategi pengajaran sains dalam menunjang proses belajar mengajar di sekolah sangat besar. Strategi ini dapat digunakan sebagai suatu metode alternatif untuk memecahkan kebuntuan komunikasi belajar antara guru dan siswa, khususnya bila siswa menghadapi kesulitan belajar dalam hal memahami materi ajar baru namun memiliki kemiripan alur berpikir dengan materi ajar sebelumnya. Sebagai basis berpikir metode pengajaran dengan analogi, artikel ini akan memperkenalkan dan mendiskusikan dua konsep utama, yaitu: konsep rujukan, materi ajar yang sudah dipahami sebelumnya oleh siswa, dan konsep target, materi ajar yang akan dipahamkan kepada siswa. Pembahasan kedua konsep tersebut akan disertai dengan beberapa contoh kasus dalam pengajaran fisika di sekolah. Tidak tertutup kemungkinan bagi para guru di kelas untuk memanfaatkan metode alternatif ini sebagai salah satu cara untuk meningkatkan keterampilan berpikir siswa. Dengan demikian, pengayaan materi ajar tidak saja dapat dilakukan melalui latihan soal berulang dan berjenjang, melainkan juga dapat dengan memperkenalkan paradigma baru agar diperoleh spektrum pemahaman materi ajar yang lebih luas dan komprehensif.
DEVELOPMENT OF LEARNING MATERIALS WITH SOCRATIC MODEL AT HISTORY OF PHYSICS Suprapto, Nadi; Dwikoranto, D
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p14-22

Abstract

A history of physics lecture become important for the student because its knowledge will be a complement as knowledge framework from all that have and will be obtained by students. This is an optional lecture for the student of physics education by 2 credit which is programmed at even semester. Though an optional lecture, this is still very enthused by students. Pursuant to this situation hence done a research and development (R and D) to this lecture. Research done by student of Reguler Physics Education 2006. The aim of this research is to develop learning materials include Lesson Plan (GBRP and SAP), dictate, Student Worksheet (LKM), Appraisal Sheet (LP), hands out, physician pictures and poster oriented to socratic model. Then those are tried to the student. The result shows the ability of lecturer in managing study of Socrates categorize goodness. Result of management at introduction and activity of class condition shows that the category is very good, while for core activities, closure, and time management shows good enough category, from perception mean score ?3.0 every study steps. Student activity cover: listening actively, reading, doing and writing answer in LKM, discussing with lecturer, discussing between student in group, making resume, and irrelevant behavior successively are 14.50%, 13.50%, 16.50%, 27.75%, 20.75%, 7.00% and 0.00%. The biggest percentage activity is to discuss with lecturer, while smallest activity percentage is to make resume and irrelevant behavior. Enthusiasm learn student at negative and positive statement criterion, mean score to every condition of attention, relevansion, confidence, and satisfaction (ARCS) successively is 4.00, 4.05, 4.15, and 3.45 with good category with mean score for all condition are 3.91 so that student enthusiasm criterion in good category. The learning product of pretest at learning show all product indicator is not complete with complete mean 27.68%. Then after given by post test its result show complete mean equal to 81.67% and all item test is completed.Key words: Development materials learning, Socratic Model, R & D, History of Physics
Development of Learning Materials with Socratic Model at History of Physics Suprapto, Nadi; Dwikoranto, D
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p14-22

Abstract

A history of physics lecture become important for the student because its knowledge will be a complement as knowledge framework from all that have and will be obtained by students. This is an optional lecture for the student of physics education by 2 credit which is programmed at even semester. Though an optional lecture, this is still very enthused by students. Pursuant to this situation hence done a research and development (R and D) to this lecture. Research done by student of Reguler Physics Education 2006. The aim of this research is to develop learning materials include Lesson Plan (GBRP and SAP), dictate, Student Worksheet (LKM), Appraisal Sheet (LP), hands out, physician pictures and poster oriented to socratic model. Then those are tried to the student. The result shows the ability of lecturer in managing study of Socrates categorize goodness. Result of management at introduction and activity of class condition shows that the category is very good, while for core activities, closure, and time management shows good enough category, from perception mean score 3.0 every study steps. Student activity cover: listening actively, reading, doing and writing answer in LKM, discussing with lecturer, discussing between student in group, making resume, and irrelevant behavior successively are 14.50%, 13.50%, 16.50%, 27.75%, 20.75%, 7.00% and 0.00%. The biggest percentage activity is to discuss with lecturer, while smallest activity percentage is to make resume and irrelevant behavior. Enthusiasm learn student at negative and positive statement criterion, mean score to every condition of attention, relevansion, confidence, and satisfaction (ARCS) successively is 4.00, 4.05, 4.15, and 3.45 with good category with mean score for all condition are 3.91 so that student enthusiasm criterion in good category. The learning product of pretest at learning show all product indicator is not complete with complete mean 27.68%. Then after given by post test its result show complete mean equal to 81.67% and all item test is completed.Key words: Development materials learning, Socratic Model, R & D, History of Physics
Computational physics Using Python: Implementing Maxwell Equation for Circle Polarization Madlazim, M; Jaya Santosa, Bagus
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p1-7

Abstract

Python is a relatively new computing language, created by Guido van Rossum [A.S. Tanenbaum, R. van Renesse, H. van Staveren, G.J. Sharp, S.J. Mullender, A.J. Jansen, G. van Rossum, Experiences with the Amoeba distributed operating system, Communications of the ACM 33 (1990) 46–63; also on-line at http://www.cs.vu.nl/pub/amoeba/, which is particularly suitable for teaching a course in computational physics. There are two questions to be considered: (i) For whom is the course intended? (ii) What are the criteria for a suitable language, and why choose Python? The criteria include the nature of the application. High performance computing requires a compiled language, e.g., FORTRAN. For some applications a computer algebra, e.g., Maple, is appropriate. For teaching, and for program development, an interpreted language has considerable advantages: Python appears particularly suitable. Python‟s attractions include (i) its system of modules which makes it easy to extend, (ii) its excellent graphics (VPython module), (iii) its excellent on line documentation, (iv) it is free and can be downloaded from the web. Python and VPython will be described briefly, and some programs demonstrated numerical and animation of some phenomenal physics. In this article, we gave solution of circle polarization by solving Maxwell equation.
Strategi Pengajaran Sains dengan Analogi Suatu Metode Alternatif Pengajaran Sains Sekolah Prastowo, Tjipto
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p8-13

Abstract

Peran analogi sebagai salah satu strategi pengajaran sains dalam menunjang proses belajar mengajar di sekolah sangat besar. Strategi ini dapat digunakan sebagai suatu metode alternatif untuk memecahkan kebuntuan komunikasi belajar antara guru dan siswa, khususnya bila siswa menghadapi kesulitan belajar dalam hal memahami materi ajar baru namun memiliki kemiripan alur berpikir dengan materi ajar sebelumnya. Sebagai basis berpikir metode pengajaran dengan analogi, artikel ini akan memperkenalkan dan mendiskusikan dua konsep utama, yaitu: konsep rujukan, materi ajar yang sudah dipahami sebelumnya oleh siswa, dan konsep target, materi ajar yang akan dipahamkan kepada siswa. Pembahasan kedua konsep tersebut akan disertai dengan beberapa contoh kasus dalam pengajaran fisika di sekolah. Tidak tertutup kemungkinan bagi para guru di kelas untuk memanfaatkan metode alternatif ini sebagai salah satu cara untuk meningkatkan keterampilan berpikir siswa. Dengan demikian, pengayaan materi ajar tidak saja dapat dilakukan melalui latihan soal berulang dan berjenjang, melainkan juga dapat dengan memperkenalkan paradigma baru agar diperoleh spektrum pemahaman materi ajar yang lebih luas dan komprehensif.

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