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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 440 Documents
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PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING BERBANTUAN MEDIA PEMBELAJARAN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO TERHADAP KEMAMPUAN BERPIKIR KRITIS Pratama, Hendrik; Prastyaningrum, Ihtiari
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 6, No 2 (2016)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v6n2.p44-50

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pembelajaran Project Based Learning berbantuan media pembelajaran pembangkit listrik mikrohidro terhadap kemampuan berpikir kritis. Penelitian dilaksanakan di Program Studi Pendidikan Teknik Elektro IKIP PGRI Madiun pada mahasiswa Semester II yang mengikuti mata kuliah Fisika Teknik. Desain penelitian menggunakan sistem one group pretest posttest design. Pengumpulan data dilakukan dalam bentuk observasi dan tes pilihan ganda. Instrumen penelitian berupa silabus, Rencana Pelaksanaan Pembelajaran (RPP), dan Lembar Kerja. Hasil penelitian menunjukkan data bahwa perhitungan N-gain ternormalisasi diperoleh rata-rata kenaikan kemampuan berpikir kritis dari 20 orang peserta didik adalah 0,45 (kategori sedang). Sedangkan hasil analisis data dengan uji t (t-test) menunjukkan bahwa terdapat perbedaan nilai kemampuan berpikir kritis peserta didik sebelum dan sesudah diberikan pembelajaran dengan model Project Based Learning. Nilai rerata mean diperoleh rerata nilai postes (81,44) lebih tinggi daripada nilai pretes (61,41). Sehingga dapat disimpulkan bahwa penerapan model pembelajaran Project Based Learning berbantuan media pembelajaran pembangkit listrik mikrohidro dapat meningkatkan kemampuan berpikir kritis peserta didik.
Development of HOTS Oriented Cognitive Problems in Thermodynamics for Senior High Schools Agustihana, Seftyan; Suparno, Suparno
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n1.p44-54

Abstract

One of cognitive abilities of students that should be trained and developed in the 21st century learning is high-level thinking skills. As higher order thinking skills are emerging trend in education, assessment instruments based on high order thinking skills (HOTS) principles are required. This study aims to develop a high-level thinking ability instrument for Physics subject of senior high schools which is intended to measure HOTS of senior high school students for Thermodynamic Materials in City of Nganjuk in East Java. The study was conducted in three stages, including initial development, trials, and measurement. The initial development stage included compilation, review, and validation, including content validation by experts. There are two sets questions A and B, consisting 20 questions respectively, with anchor items as much as 5 items. The measurement results show that HOTS-oriented test kits of Thermodynamics have obtained empirical evidence are suitable with partial credit model. The difficulty level of the test battery is in the range of -2.0 to +2.0, with the most difficult aspects in the sequence are analyzing, evaluating, and creating. The reliability of HOTS-oriented tests has met the high categorical requirements, and based on the total information function of the tests, it is appropriately used to measure the HOTS of learners with capability -2.3 to +1.6. Based on students’ responses, the analysis ability is the highest skills followed by the ability to evaluate and create. HOTS-oriented tests developed can be used as the reference for the teachers to accommodate student’s higher order thinking skills.
DESKRIPSI KESULITAN BELAJAR PESERTA DIDIK DAN FAKTOR PENYEBABNYA DALAM MEMAHAMI MATERI LISTRIK DINAMIS KELAS X SMA NEGERI 2 BENGKAYANG Nofitasari, Ira; Sihombing, Yuliana
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 7, No 1 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v7n1.p44-53

Abstract

Penelitian ini bertujuan untuk memaparkan kesulitan belajar peserta didik dan faktor penyebabnya dalam memahami materi listrik dinamis kelas X SMA Negeri 2 Bengkayang. Penelitian ini merupakan penelitian deskriptif. Teknik pengumpul data yang digunakan adalah teknik pengukuran dengan soal tes, dan teknik komunikasi tidak langsung dengan angket respon. Data yang diperoleh dianalisis secara deskriptif kualitatif. Berdasarkan hasil analisis data disimpulkan bahwa: (1) Kesulitan yang dialami peserta didik dengan kriteria tinggi yaitu pada sub pokok bahasan Hukum Kirchoff dengan persentase sebesar 71,42 % dan energi serta daya hantar listrik dengan persentase sebesar 63,68 %, sedangkan untuk sub pokok bahasan dengan kriteria cukup tinggi yaitu pada sub pokok bahasan Hukum Ohm dan hambatan suatu konduktor dengan persentase sebesar 58,03 %, arus, tegangan, dan hambatan listrik dengan persentase sebesar 53,35 %, rangkaian resistor seri dan paralel dengan persentase sebesar 53,57 %.;(2) Faktor-faktor yang menyebabkan peserta didik mengalami kesulitan yaitu faktor intern dan ekstern. Faktor intern yaitu kurangnya minat dan motivasi belajar peserta didik, sedangkan faktor ekstern yaitu kurangnya variasi media dan metode pembelajaran.
An Exploration of Students’ Mental Models on Heat and Temperature: A Preliminary Study Priyadi, Rian; Diantoro, Markus; Parno, Parno; Helmi, Helmi
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 2 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n2.p114-122

Abstract

The mental models are internal representation possessed by students when learning a concept. This study is intended to explore students’ mental models on Heat and Temperature concept. This research was conducted on 11th grade students of Science program (N = 60) at one senior public school in Malang. Data were collected through open-ended questions and analyzed using the SSI method, which consisted of three levels of mental models. Based on the results, most of the students are still at the synthetic level. In addition, some differences of the students in visualizing the state of solid atoms during expansion, direction of heat conduction, and direction of heat convection. The future study is expected to explore the mental models of students in other topics of Physics education and make use of appropriate learning models to increase students’ mental models.
ANALISIS PENGARUH DENSITAS BAHAN BAKAR SILISIDA TERHADAP PARAMETER KINETIK TERAS REAKTOR RSG-GAS Surbakti, Tukiran; P, Surian; S, Tagor
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 3, No 1 (2013)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v3n1.p19-30

Abstract

Saat ini RSG-GAS menggunakan elemen bakar silisida 2,96 g U/cc. Untuk meningkatkan waktu operasi reaktor maka akan direncanakan untuk mengganti elemen bakar silisida dengan kerapatan yang lebih tinggi. Keuntungan reaktor dengan bahan bakar kerapatan tinggi adalah dapat lebih efektif dan efisien. Maka perlu dilakukan perhitungan parameter kinetik teras silisida kerapatan tinggi mengingat pengaruhnya sangat penting untuk keselamatan operasi reaktor. Parameter kinetik yang dihitung yaitu fraksi neutron kasip efektif, konstanta peluruhan neutron kasip, umur neutron serempak yang merupakan faktor utama dalam kontrol dan keselamatan. Bahan bakar silisida tipe pelat dengan densitas 2,96 - 4,8 gU/cm3 digunakan pada teras RSG-GAS untuk menganalisis perhitungan parameter kinetik. Perhitungan sel dilakukan dengan paket program WIMSD-5B dan paket program Batan-2DIFF digunakan untuk perhitungan teras. Hasil perhitungan menunjukkan bahwa harga fraksi neutron kasip turun dengan naiknya densitas bahan bakar. Turunnya nilai parameter kinetik ini tidak mengganggu pergantian bahan bakar ke densitas yang lebih tinggi. Turunnya nilai parameter kinetik rata-rata dari densitas 2,96 gU/cm3 ke 3,55 gU/cm3 adalah 1,3 % sedangkan dari densitas 2,96 gU/cm3 ke 4,8 gU/cm3 adalah 2,2 % . Sehingga jika dilakukan pergantian bahan bakar maka ditinjau dari segi neutronik dan parameter kinetiknya tidak akan mengalami perubahan dalam pola operasi reaktor atau manajemen bahan bakar dan tidak akan berpengaruh terhadap keselamatan operasi reaktor.
Physical Oceanography Condition in Eastern Karimata Strait: Pasir Mayang Beach West Kalimantan Harianto, Harianto; Kushadiwijayanto, Arie Antasari; Apriansyah, Apriansyah
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 8, No 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n1.p51-60

Abstract

Karimata strait is located in the western Indonesian, separate the Kalimantan and Belitung island, that has an important role for the distribution services. The information about its dynamics such as tidal behavior, and wave is the key to support the navigation activities in this area. This research describes the results of measurements of the physical oceanography parameter on the eastern side of the Karimata Strait, Pasir Mayang Beach. The tidal data were measured for 15 days in February 25th – March 12th, 2017 and sea current were observed for 24 hours on February 27-28th, 2017. The result showed that tidal type in this area is diurnal tide with amplitude of M2, S2, K1, and O1 respectively are 0.085 m, 0.086 m, 0.455 m, and 0.342 m. Significant wave’s high is ranged from 0.12 – 0.31 m with significant period of 5.32-6.9 s. The wave direction is south western. The current velocity is ranged from 0.087- 0.112 m/s and average current velocity is 0.092 m/s. The tidal current direction is northeast at low tide and south western at high tide. This study also reveals important information that wave energy variability is not only affected by seasonal conditions but also influenced by tides. The tides have responsibility to change the propagation medium of wave that is originated dispersive to non-dispersive medium. This study opens a new study of correction of wave measurement procedures by including and taking into account the effects of tides.
GROWTH AND PROPERTIES OF STACKED SELF-ASSEMBLED In0.5Ga0.5As QUANTUM DOTS Aryanto, Didik; Othaman, Zulkafli; Ismail, Abd. Khamim
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 2, No 1 (2012)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v2n1.p1-6

Abstract

Self-assembled In0.5Ga0.5As quantum dots (QDs) were grown using metal-organic chemical vapor deposition (MOCVD) on GaAs (100) substrate with different number of stacking QDs layers. Surface study using atomic force microscopy (AFM) shows that surface morphology of the self-assembled QDs change with different number of stacking QDs layers caused by the previous QDs layers and the thickness of the GaAs spacer layers. PL measurement shows variation in the PL spectra as a function of number of stacking layers of In0.5Ga0.5As QDs. The PL peak positions blue-shifted from 1225 nm to 1095 nm and dramatically increase in intensity with increasing number of stacking QDs layers.
The Rate of Land Cover Change using Landsat Data in Coal Mining Area of Sawah Lunto City, Indonesia Cahyono, Bowo Eko; Frahma, Yazella Feni; Nugroho, Agung Tjahjo
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 2 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n2.p189-203

Abstract

Sawahlunto city is well-known for coal mining region. As in 2010, there have been at least 12 mining companies exploring coal resources in the region. As time passes, land cover conditions have gradually decreased due to mining activities. This region on which was originally covered by various vegetation and ecosystem have systematically transformed into open areas for coal mining. The use of remote sensing technology for land cover monitoring has been commonly well-developed in accordance with the need for improvement of detailed information about the changes of land use coverage. This study examines the land cover changes using supervised classification method based on Landsat data. The method focuses on four dominant classes of land cover in the region, namely forest, mining, settlement, and water resources. The classification processes were performed based on true-color composite satellite images. The results show that the overall accuracies of classification are 91.68 %, 92.49 %, 93.69 %, and 93.74 % in 2000, 2006, 2011, and 2016 respectively. It was also found that forest is the largest area in the coal mining area which, in some sense, tends to continuously decrease in terms of land cover in the last 15 years. The rate of forest area degradation achieved its maximum between 2006 and 2011.
ORNE Learning Model to Improve Problem-Solving Skills of Physics Bachelor Candidates: An Alternative Learning in the Covid-19 Pandemic Prahani, Binar Kurnia; Ramadani, Ali Hasbi; Kusumawati, Diah Hari; Suprapto, Nadi; Madlazim, Madlazim; Jatmiko, Budi; Supardi, Zainul Arifin Imam; Mubarok, Husni; Safitri, Shabrina; Deta, Utama Alan
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 10, No 1 (2020)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n1.p71-80

Abstract

In this industrial revolution 4.0 era, professional science, technology, engineering, and mathematics (STEM) bachelor must have various skills. One of which is problem-solving skills. The development of problem-solving skills (PSS) is very important in higher education. Students must have PSS that must be improved to become excellent graduates, including physics bachelor candidates. Many physics bachelor candidates lack problem-solving skills. This problem is the basis for developing innovative learning models based online that, by design, can improve the problem-solving skills of physics bachelor candidates in the COVID-19 pandemic. This research aims to analyze the effectiveness ORNE learning model in improving the problem-solving skills of physics bachelor candidates as an alternative to online learning in the COVID-19 pandemic. The research design used a true-experiment with a non-equivalent control group design with 58 physics bachelor candidates. Data collected using the problem-solving skills test and then analyzed using the Paired Sample Test, Effect Size, N-gain, and Independent Sample Test. The results showed that the ORNE learning model proved effective in improving physics bachelor candidates' problem-solving skills. This research implies that the ORNE learning model can improve physics bachelor candidates' problem-solving skills as an alternative to online learning in the COVID-19 pandemic.
PENERAPAN METODE DEMONSTRASI BERBANTU MEDIA ANIMASI SOFTWARE PHET TERHADAP HASIL BELAJAR SISWA DALAM MATERI LISTRIK DINAMIS KELAS X MADRASAH ALIYAH NEGERI 1 PONTIANAK Nurhayati, N; Fadilah, Syarifah; Mutmainah, M
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 4, No 2 (2014)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v4n2.p1-7

Abstract

Tujuan dari penelitian ini adalah untuk menerapkan metode demonstrasi berbantu media animasi Software PhET dalam membelajarkan materi listrik dinamis, menganalisis pengaruh penggunaan metode demonstrasi berbantu media animasi Software PhETterhadap hasil belajar siswa dan mengetahui efektifitas penerapan metode demonstrasi berbantu media animasi Software PhET dalam meningkatkan hasil belajar siswa pada materi listrik dinamis. Metode penelitian ini yaitu metode eksperimen dengan bentuk penelitian Quasi Experimental Design (eksperimen semu) dan bentuk desain Nonequivalent Group Posttest-Only. Populasi dalam penelitian ini adalah seluruh siswa kelas X Madrasah Aliyah Negeri 1 Pontianak tahun ajaran 2013/2014 yang terdiri dari tujuh kelas. Dari tujuh kelas ini diambil dua kelas sebagai sampel teknik cluster random sampiling. Sehingga diperoleh kelas eksperimen yaitu kelas XF, kelas yang diajarkan menggunakan metode demonstrasi berbantu media animasi Software PhET dan kelas kontrol yaitu kelas XA, kelas yang diajarkan menggunakan metode konvensional. Penelitian ini dimulai dari uji coba instrumen dan pengambilan data, analisis uji instrumen dan analisis data serta uji hipotesis menggunakan U-Mann Whitney karena kedua data tidak berdistribusi normal. Sedangkan untuk mengetahui besar efektifitas penerapan metode demontrasi berbantu media animasi Software PhET dengan menggunakan rumus effect size. Berdasarkan hasil analisis data, diperoleh rata–rata posttest pada kelas eksperimen sebesar 72,72 sedangkan rata–rata posttest pada kelas kontrol sebesar 54,89. Hasil uji hipotesis menggunakan U-Mann Whitney diperoleh Zhitung = -3,198 untuk α=5% diperoleh Ztabel sebesar -1,64 dengan demikian Zhitung<Ztabelatau -3,198 <-1,64, maka dapat disimpulkan bahwa hasil belajar siswa yang diajarkan dengan metode demonstrasi berbantu media animasi Software PhET lebih baik dari pada hasil belajar siswa dengan menggunakan metode konvensional. Berdasarkan analisis data diperoleh Effect Size sebesar 0,8 maka dapat disimpulkan efektivitas penerapan metode demonstrasi berbantu media animasi Software PhET dalam materi listrik dinamis kelas X Madrasah Aliyah Negeri 1 pontianak tergolong sedang.

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