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All Journal Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan
Zuhdi '
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Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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KARAKTERISASI MATERIAL FEROELEKTROK Ba(1-x)Sr(x)TiO3 (BST) UNTUK KOMPOSISI x=0,1; 0,2 dan 0,3 Rahmi Dewi; Krisman '; Zuhdi '
Komunikasi Fisika Indonesia Vol 11, No 9 (2014)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.231 KB) | DOI: 10.31258/jkfi.11.9.577-581

Abstract

Barium Strontium Titanate, Ba0.9Sr0.1TiO3, Ba0.8Sr0.2TiO3 and Ba0.7Sr0.3TiO3 (BST) samples were prepared usingsolid state chemical reaction. The microstructure of these samples were characteritation using the X-ray Diffractiontechnique (XRD) and Scanning Electron Microscopy (SEM). Then the samples were composition variationdifferent annealed at 700oC a for 60 minutes in air. The XRD characterization showed that the crystallizationimproved as the barium increased. The microstructure showed that the samples were homogeny with the grainsize were uniform. The grain size samples increases with the strontium increased.
ANALISIS KETERAMPILAN SISWA DALAM MELAKSANAKAN PRAKTIKUM PADA MATERI GERAK LURUS DI SMA Medya Sartika; Zuhdi '; Nur Islami
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 4, No 1 (2017): Wisuda Februari 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract

Abstract: This research aims to describe the student's skills in performing laboratory work for a straight motion of matter in senior high school. This research is a descriptive with supporting of quantitative approach while the method for surveying. The sample in this research is class X IPA 1 and class X IPA 2 with a total of 67 students. The selection of the samples was done by purposive sampling method. The data in this study a score of student skills in carrying out laboratory work in a straight motion of matter in high school which is analyzed descriptively, including scoring, metabulation for the average statements contained in the questionnaire, and then categorize it in accordance with the predicate implement practical skill level. Result of this is derived from the aspects of the preparation, execution, and cover. Based on data analysis of skills levels on aspects of the preparation obtained a score of 3.35 with quite good category, on the execution aspect obtained a score of 3.25 with quite well category and cover aspects of 3.49 with quite good category. Therefore, it can concluded that the class X IPA IPA 1 and X IPA 2 in SMA Negeri 14 Pekanbaru has the skills to implement a practical work in a straight motion of matter which is implemented optimally. 
Co-Authors Krisman ' Medya Sartika Nur Islami Rahmi Dewi