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All Journal WAPFI (Wahana Pendidikan Fisika) Jurnal Pengajaran MIPA Jurnal Riset dan Kajian Pendidikan Fisika Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Jurnal Inovasi dan Pembelajaran Fisika Jurnal Penelitian Pembelajaran Fisika JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Saeful Karim
Universitas Pendidikan Indonesia
Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Mathematics Physics Social Sciences Other

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PENGARUH TEMPERATUR TERHADAP TINGKAT SERAPAN AIR DALAM BAHAN POLY (2-VINYL PYRIDINE -CO-STYRENE) Wiendartun, Mr; Rusnayati, Heni; Karim, Saeful
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 2, No 2 (2001): Jurnal Pengajaran MIPA
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v2i2.393

Abstract

Hydrophilic properties of organic polymer such as Poly (2-Vinylpyridine- Co-Styrene) have been found to have a correlation with other physical properties especially the electric resistivity. In this work, we have studied one of the physical properties of a polymer material, Poly (2-Vinylpyridine- Co-Styrene), that is the electric resistivity. It was studied on the basis of its relation with the concentration, temperature, humidity and the distance between their electrodes. The sample fabricated consists of two types of consentration: 0.03 gr/ml and 0.05 gr/ml with the distance between the two electrodes are 0.40 mm and 0.80 mm respectively. Towards these samples, we investigated the resistance coefficient for every 2% change in humidity for both drying and watering processes. From the experiment we obtain the following results: 1) There is hysteresis during the watering and drying processes indicating the continuity of resistance of this material, 2) Sample with smaller distance of electrodes performs better than that of the longer ones, 3) Sample fabricated from solution with higher concentration performs better than that of the lower ones, 4) Room temperature plays a significant role on the performance of the polymer material between the associated electrodes. These results could be used as a stepping-stone toward the more advance research leading the determination of film stability, resistancy upon temperature variation etc, so that this polymer material could be further developed into the humidity sensor device material.Key words: Hydrophilic, electric resistance, humidity sensor and polymer.
PENERAPAN METODE PEMBELAJARAN DEMONSTRASI INTERAKTIF UNTUK MENINGKATKAN HASIL BELAJAR FISIKA SISWA SMA PADA KONSEP SUHU DAN KALOR Annisa, Fanny Nurul; Karim, Saeful; Aminudin, Ahmad
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 19, No 1 (2014): Jurnal Pengajaran MIPA
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v19i1.429

Abstract

Berdasarkan hasil observasi yang menunjukan bahwa 60% siswa mendapat nilai di bawah nilai KKM yang sudah ditentukan. Metode pembelajaran Demonstrasi Interaktif dapat menjadi salah satu alternatif metode pembelajaran yang diterapkan untuk meningkatkan hasil belajar dan respon siswa. Desain penelitian yang digunakan adalah One Group Pretest Postest Design, yang diterapkan pada 40 siswa. Berdasarkan hasil penelitian diperoleh bahwa hasil belajar siswa mengalami peningkatan pada setiap seri pembelajaran setelah diterapkannya metode pembelajaran Demonstrasi Interaktif. Pada seri I IPK pretest 38,86% (rendah) dan IPK postest 55,45% (sedang), pada seri II IPK pretest 36,59% (rendah) dan IPK postest 55,67% (sedang), pada seri III IPK pretest 29,06% (rendah) dan IPK postest 55,94% (sedang). Untuk profil aktifitas siswa rata-rata aktivitas motorik memiliki persentase 59,07% (cukup), aktivitas visual memiliki persentase 61,46% (baik), aktivitas lisan memiliki persentase 64,24% (baik). Respon siswa untuk pernyataan positif, jumlah responden menjawab ya sebesar 84,4% dan tidak sebesar 15,6%, untuk persentase rata-rata pernyataan negatif, jumlah responden menjawab ya sebesar 42,5% dan tidak sebesar 57,5%.Kata Kunci : aktifitas belajar, hasil belajar, metode demonstrasi interaktif, respon
PENENTUAN ELEKTROMOTANSI TERMAL BEBERAPA JENIS TERMOKOPEL DENGAN PASANGAN LOGAM YANG BERVARIASI (Upaya untuk Mendapatkan Pasangan Logam yang Terbaik untuk Termokopel) KARIM, SAEFUL; SUNARDI, MR
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 8, No 2 (2006): Jurnal Pengajaran MIPA
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v8i2.331

Abstract

An experiment has been done to observe about relation of difference temperature with electromotive force between two metal junctions. This experiment directed to determine the coeficient thermal electromotantion from some termocouples and to find metal junction which most linier. In this experiment used experimental method with some instrument, there is thermometer, galvanometer, and potentiometer ( nichrom ). Termocouple is used in this experiment bent two metal junction, there is cooper – steel, nichrom-steel, nichrom – cooper, irom-steel, iron-nichrom, and cooper – iron. Extending of temperature is used inthis experiment there is reference temperature ( To = 1 oC ) and measuring temperature ( 30 – 75 oC ). From this experiment we  find some illustrations that the more higher of difference temperature between two metal junction there for the more higher too of electromotive force has producted from two metal junctions ( termocouple ). For junction cooper iron and iron nichrom has producted non linier relation ( relation of electromotive force with difference temperature ). But for junction cooper steel, nichrom steel, and iron steel has producted linier relations, junction nichrom cooper have relation most linier with coeficient thermal electromotantion 0,0472 mV/ 0C.Coeficient thermal electromotantion will be different depend on metal
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD (STUDENT-TEAMS-ACHIEVMENT-DIVISIONS) UNTUK MENINGKATKAN PRESTASI BELAJAR DAN KERJASAMA SISWA Karim, Saeful; Utami, Setiya; Utami, Fipit Riani
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 17, No 2 (2012): Jurnal Pengajaran MIPA
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v17i2.267

Abstract

Berdasarkan hasil studi pendahuluan dan observasi di salah satu SMP di kota Bandung, ditemukan beberapa fakta. Pertama, prestasi belajar siswa rendah. Kedua, siswa cenderung pasif dan kerjasama yang dilakukan belum melibatkan seluruh anggota kelompok. Dari temuan fakta ini, maka diperlukan suatu model pembelajaran yang mampu memfasilitasi peningkatan prestasi belajar dan membuat siswa lebih aktif dalam kegiatan pembelajaran. Salah satu solusinya adalah dengan penerapan model pembelajaran kooperatif tipe STAD. Karena pembelajaran kooperatif tipe STAD menekankan pada aktivitas dan interaksi diantara siswa untuk saling memotivasi dan saling membantu dalam menguasai materi pelajaran sehingga kerjasama yang terjadi akan melibatkan semua anggota kelompok, disamping itu juga dari beberapa penelitian membuktikan bahwa penggunaan metode pembelajaran kooperatif tipe STAD dapat meningkatkan prestasi belajar siswa. Metode penelitian yang digunakan yaitu metode kuasi eksperimen dengan desain penelitian one group pretest - posttest design dengan sampel penelitian 25 siswa kelas VIII-8 di salah satu SMP Kota Bandung. Pengambilan data dilakukan dengan menggunakan instrumen tes tertulis objektif jenis pilihan ganda dan lembar observasi aktivitas siswa dan guru. Peningkatan prestasi belajar siswa dapat diketahui dari hasil uji signifikansi pada skor pretest dan posttest prestasi belajar dengan menggunakan uji wilcoxon pada taraf signifikansi 95%, diperoleh bahwa terdapat peningkatan prestasi belajar siswa yang signifikan setelah diterapkan model pembelajaran kooperatif tipe STAD sebesar 77,44%. Peningkatan kerjasama siswa dapat diketahui dari data hasil observasi pada saat model pembelajaran kooperatif tipe STAD diterapkan. Dari hasil penelitian diketahui bahwa kerjasama siswa mengalami peningkatan pada setiap pertemuannya pada kategori sedang. Kata kunci: kerjasama siswa, model pembelajaran kooperatif tipe STAD, prestasi belajar
TUTORIAL PRA-KELAS: SEBUAH STRATEGI PEMBELAJARAN UNTUK MENINGKATKAN PEMAHAMAN KONSEP PADA PERKULIAHAN FISIKA DASAR Saepuzaman, Duden; Sriyansyah, Syakti Perdana; Karim, Saeful; Sari, Ika Mustika
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 21, No 2 (2016): Jurnal Pengajaran MIPA - Oktober 2016
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v21i2.825

Abstract

The Pre-Class Tutorial have been implemented to improve conceptual understanding of basic physics concepts among the pre-service physics teacher at one of Education College in Bandung City. This study was motivated by the previous research findings that students encounter the conceptual difficulties and the lack of understanding in introductory physics course. Based on these findings, we developed pre-class tutorial that facilitate students either to construct their own concepts o rto apply the concepts. The descriptive method was used to 260 third-years students of Physics Education Department. The increasing of conceptual understanding was identified from the average score of students’ achievement on the exam test. The findings showed that the use of pre-class tutorial effectively improve students’ conceptual understanding.
PENERAPAN METODE PEMBELAJARAN DEMONSTRASI INTERAKTIF UNTUK MENINGKATKAN HASIL BELAJAR FISIKA SISWA SMA PADA KONSEP SUHU DAN KALOR Annisa, Fanny Nurul; Karim, Saeful; Aminudin, Ahmad
Jurnal Pengajaran MIPA Vol 19, No 1 (2014): JPMIPA: Volume 19, Issue 1, 2014
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v19i1.36160

Abstract

ABSTRAKBerdasarkan hasil observasi yang menunjukan bahwa 60% siswa mendapat nilai di bawah nilai KKM yang sudah ditentukan. Metode pembelajaran Demonstrasi Interaktif dapat menjadi salah satu alternatif metode pembelajaran yang diterapkan untuk meningkatkan hasil belajar dan respon siswa. Desain penelitian yang digunakan adalah One Group Pretest Postest Design, yang diterapkan pada 40 siswa. Berdasarkan hasil penelitian diperoleh bahwa hasil belajar siswa mengalami peningkatan pada setiap seri pembelajaran setelah diterapkannya metode pembelajaran Demonstrasi Interaktif. Pada seri I IPK pretest 38,86% (rendah) dan IPK postest 55,45% (sedang), pada seri II IPK pretest 36,59% (rendah) dan IPK postest 55,67% (sedang), pada seri III IPK pretest 29,06% (rendah) dan IPK postest 55,94% (sedang). Untuk profil aktifitas siswa rata-rata aktivitas motorik memiliki persentase 59,07% (cukup), aktivitas visual memiliki persentase 61,46% (baik), aktivitas lisan memiliki persentase 64,24% (baik). Respon siswa untuk pernyataan positif, jumlah responden menjawab ya sebesar 84,4% dan tidak sebesar 15,6%, untuk persentase rata-rata pernyataan negatif, jumlah responden menjawab ya sebesar 42,5% dan tidak sebesar 57,5%.ABSTRACTBased on observations which showed that 60% of students scored below a predetermined value of KKM. Interactive Demonstration method that can be an alternative learning methods were applied to improve learning outcomes and student response. The study design used was one group pretest posttest design, which is applied to 40 students. The result showed that the learning outcomes of students has increased in each series learning after the implementation of an Interactive Demonstration methods. In the first series of pretest GPA 38.86% (low) and 55.45% GPA posttest (medium) , the second series of pretest GPA 36.59% (low) and posttest GPA 55.67% (moderate), the GPA Series III pretest 29.06% (low) and posttest GPA 55.94% (moderate). For the activity profile of the average student has a percentage of motor activity 59.07% (enough), visual activity has a 61.46% percentage (good), the percentage of oral activity has 64.24% (excellent). Students' positive response to the statement, the number of respondents answered yes by 84.4% and 15.6%, for the average percentage of negative statements, the number of respondents answered YES by 42.5% and NO by 57.5% .
PENGARUH TEMPERATUR TERHADAP TINGKAT SERAPAN AIR DALAM BAHAN POLY (2-VINYL PYRIDINE -CO-STYRENE) Wiendartun, Wiendartun; Rusnayati, Heni; Karim, Saeful
Jurnal Pengajaran MIPA Vol 2, No 2 (2001): JPMIPA: Volume 2, Issue 2, 2001
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v2i2.34918

Abstract

Hydrophilic properties of organic polymer such as Poly (2-Vinylpyridine-Co-Styrene) have been found to have a correlation with other physical properties especially the electric resistivity. In this work, we have studied one of the physical properties of a polymer material, Poly (2-Vinylpyridine-Co-Styrene), that is the electric resistivity. It was studied on the basis of its relation with the concentration, temperature, humidity and the distance between their electrodes. The sample fabricated consists of two types of consentration: 0.03 gr/ml and 0.05 gr/ml with the distance between the two electrodes are 0.40 mm and 0.80 mm respectively. Towards these samples, we investigated the resistance coefficient for every 2% change in humidity for both drying and watering processes. From the experiment we obtain the following results: 1) There is hysteresis during the watering and drying processes indicating the continuity of resistance of this material, 2) Sample with smaller distance of electrodes performs better than that of the longer ones, 3) Sample fabricated from solution with higher concentration performs better than that of the lower ones, 4) Room temperature plays a significant role on the performance of the polymer material between the associated electrodes. These results could be used as a stepping-stone toward the more advance research leading the determination of film stability, resistancy upon temperature variation etc, so that this polymer material could be further developed into the humidity sensor device material.
PENENTUAN ELEKTROMOTANSI TERMAL BEBERAPA JENIS TERMOKOPEL DENGAN PASANGAN LOGAM YANG BERVARIASI Karim, Saeful; Sunardi, Sunardi
Jurnal Pengajaran MIPA Vol 8, No 2 (2006): JPMIPA: Volume 8, Issue 2, 2006
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v8i2.35684

Abstract

An experiment has been done to observe about relation of difference temperature with electromotive force between two metal junctions. This experiment directed to determine the coeficient thermal electromotantion from some termocouples and to find metal junction which most linier. In this experiment used experimental method with some instrument, there is thermometer, galvanometer, and potentiometer ( nichrom ). Termocouple is used in this experiment bent two metal junction, there is cooper – steel, nichrom-steel, nichrom – cooper, irom-steel, iron-nichrom, and cooper – iron. Extending of temperature is used inthis experiment there is reference temperature ( To = 1 oC ) and measuring temperature ( 30 – 75 oC ). From this experiment we find some illustrations that the more higher of difference temperature between two metal junction there for the more higher too of electromotive force has producted from two metal junctions ( termocouple ). For junction cooper iron and iron nichrom has producted non linier relation ( relation of electromotive force with difference temperature ). But for junction cooper steel, nichrom steel, and iron steel has producted linier relations, junction nichrom cooper have relation most linier with coeficient thermal electromotantion 0,0472 mV/ 0C.Coeficient thermal electromotantion will be different depend on metal.
Diagnosis Kesulitan Belajar Mahasiswa Dalam Memahami Konsep Momentum Saeful Karim; Duden Saepuzaman; S. P. Sriyansyah
Jurnal Penelitian & Pengembangan Pendidikan Fisika Vol 1 No 1 (2015): JPPPF - Jurnal Penelitian & Pengembangan Pendidikan Fisika, Volume 1 Nomor 1, Jun
Publisher : Program Studi Pendidikan Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.434 KB) | DOI: 10.21009/1.01112

Abstract

AbstractThis descriptive study was motivated by the achievement of students' understanding of the concept of momentum that was still not as expected. The purpose of this study was to determine students’ conceptual understanding and reveal students’ learning difficulties on the concept of momentum in order to plan appropriate learning program. The research subject was 41 students who attend introductory physics course at LPTK in West Java. Data collection tool in the form of multiple-choice diagnostic tests, Momentum Conceptual Survey. Based on the results of diagnostic tests, students had difficulties as follows. First, students found it difficult to apply the concept of momentum in various physics context, especially new physics context that stated qualitatively. Second, students considered the concept of momentum is equal to the concept of energy, namely as a scalar quantity. Third, they found it difficult to apply conservation law of linear momentum in new physics context. Students were too focused on the velocity in solving momentum problems. Fourth, there was fallacy related to the applicability of the conservation law of momentum for objects, not only for the system. Fifth, students were unable to describe momentum, and impulse that expressed in vector representation.Keywords: diagnosis of learning difficulties, the concept of momentumAbstrakPenelitian ini dilatarbelakangi oleh pencapaian penguasaan konsep momentum mahasiswa yang masih belum sesuai harapan. Tujuan penelitian ini adalah untuk mengetahui pemahaman konsep mahasiswa dan mengungkap kesulitan yang dialami mahasiswa pada konsep momentum dalam rangka merencanakan program pembelajaran yang tepat. Metode yang digunakan adalah deskriptif analitik dengan sampel sebanyak 41 mahasiswa yang mengikuti perkuliahan Fisika Dasar pada salah satu LPTK di Jawa Barat. Alat pengumpul data berupa tes diagnostik Momentum Conceptual Survey yang berbentuk pillihan ganda. Berdasarkan hasil tes diagnostik, diketahui bahwa mahasiswa mengalami kesulitan sebagai berikut. Pertama, mahasiswa kesulitan dalam menerapkan konsep momentum dalam berbagai situasi fisika, terutama situasi fisika baru atau yang dinyatakan dalam bentuk deskriptif. Mahasiswa masih sering menyelesaikan persoalan momentum yang dinyatakan secara deskriptif, tidak dalam bentuk angka, tanpa menggunakan prinsip Fisika yang telah dipelajari. Kedua, mahasiswa memandang konsep momentum sama dengan konsep energi, yaitu sebagai besaran skalar. Ketiga, mahasiswa kesulitan menerapkan hukum kekealan momentum dalam situasi fisika baru, terutama dalam konteks soal yang memiliki massayang berubah. Mahasiswa terlalu fokus pada aspek kecepatan dalam penyelesaian persoalan momentum. Keempat, adanya kekeliruan berpikir terkait keberlakuan hukum kekekalan momentum untuk benda, bukan hanya untuk sistem. Kelima, mahasiswa kesulitan dalam mendeskripsikan momentum, perubahan momentum, dan impuls yang dinyatakan dalam representasi vektor.Kata-kata kunci: diagnosis kesulitan, konsep momentum
Penerapan Pembelajaran Berbasis Masalah dengan Pendekatan Multirepresentasi untuk Meningkatkan Prestasi Belajar dan Konsistensi Ilmiah Berbasis Multirepresentasi pada Materi Elastisitas Annisa Permata Sari; Selly Feranie; Saeful Karim
Jurnal Penelitian & Pengembangan Pendidikan Fisika Vol 1 No 2 (2015): JPPPF - Jurnal Penelitian & Pengembangan Pendidikan Fisika, Volume 1 Nomor 2, Des
Publisher : Program Studi Pendidikan Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (498.217 KB) | DOI: 10.21009/1.01208

Abstract

Abstract Experimental studies have conducted problem based learning model with multirepresentation appoach for seeing the increase of learning achievement and scientific consistency. Research was implemented at one of senior high school in West Bandung. Multirepresentation approach (verbal, graph and math) that believed that able to make easier the students for learning concept in various representation. Pre-experiment method is used with one group pretest and posttest design. Research sample was one of tenth grade classes. The instrument to measure the learning achievement is in the form of multiple choice question which consist of twenty six questions, while scientific consistency was measured by multirepresentative three tier test based 21 questions which consist of seven concepts. These is an improvement between pretest and posttest result, it is categorized as medium with gain normalization of learning achievement 0,44 while gain normalization of scientific consistency 0,38. Futher, there is improvement scientific consistency level for whole elastic subject, four students in the consistency level, 13 students in enough consistency level and four students in the not consistency level. Based on the research result, there is tendency in multirepretation answers with students’ multi intelegences level. Keywords: PBM with multirepresentation approach, learning achievement, scientific consistency Abstrak Telah dilakukan penerapan model pembelajaran berbasis masalah dengan pendekatan multirepresentasi untuk melihat peningkatan prestasi belajar dan konsistensi ilmiah. Penelitian dilaksanakan di salah satu SMA Negeri di Kabupaten Bandung Barat. Pendekatan multirepresentasi (verbal, gambar dan matematis) yang diyakini dapat memudahkan siswa mempelajari konsep dalam berbagai representasi. Metode yang digunakan adalah pre-eksperimental dengan desain one group pretest and posttest design. Sampel penelitian adalah satu kelas X. Instrumen untuk mengukur prestasi belajar berupa multiple choice test sebanyak 26 soal sedangkan konsistensi ilmiah diukur dengan menggunakan three tier test berbasis multirepresentatif sebanyak 21 soal terdiri dari 7 konsep. Terjadi peningkatan antara hasil pretes dan postes, yaitu berada pada ketegori sedang dengan gain prestasi belajar 0,44 sedangkan gain konsistensi ilmiah 0,38. Selain itu, terjadi peningkatan level konsistensi ilmiah untuk keseluruhan materi elastistisitas, yaitu 4 siswa berada pada level konsisten, 13 siswa cukup konsisten dan 4 siswa tidak konsisten. Berdasarkan hasil penelitian, terdapat kecenderungan jawaban multirepresentasi siswa dengan kecerdasan majemuk. Kata-kata kunci: PBM dengan pendekatan multirepresentatif, prestasi belajar, konsistensi ilmiah berbasis
Co-Authors - Wiendartun Agus Danawan Ahmad Aminudin Annisa Permata Sari Duden Saepuzaman Duden Saepuzaman, Duden Efendi, Ridwan Eka Cahya Prima Fanny Nurul Annisa Fipit Riana Utami Fipit Riani Utami Firda Fikri Andini Hani Nur Azizah Haura Fauziyyah Halilah Heni Rusnayati Heni Rusnayati Ika Mustika Sari Ika Mustika Sari Ika Mustika Sari Inni Amarta Khairati Ismah Fitriani Zakiah MR SUNARDI Muhamad Gina Nugraha Mutia Hariza Lubis Niendhita Dwi Nurmalasari Parlindungan Sinaga Raden Giovanni Rima Nurul Fajriyati S. P. Sriyansyah Selly Feranie Setiya Utami Setiya Utari Sriyansyah, Syakti Perdana Sunardi Sunardi Taufik Ramlan amalis Widi Ilhami Novili Zahra Raudi Maulidia