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All Journal PAKAR Pendidikan Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA
Siska Febriyani
Universitas Negeri Padang
Chemistry Earth & Planetary Sciences Education Languange, Linguistic, Communication & Media Library & Information Science Mathematics Physics Other

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Hubungan Conformity dengan Motivasi Belajar Siswa Kelas X SMKN 2 Kota Solok Siska Febriyani; Agus Firman; Wahyu Tri Prastyo; Zamzami Zamzami; Wiskarni Wiskarni
PAKAR Pendidikan Vol 20 No 1 (2022): Published in January 2022
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pakar.v20i1.266

Abstract

Education is the main thing in life. Every human being has the right to obtain education as development and progress in itself. Education is always associated with learning and directly proportional to study habits. The success of the learning process depends on students' motivation and enthusiasm for learning. Student motivation is also influenced by conformism. In adolescence, conformity is very influential on consideration in making decisions. Furthermore, adolescence is an unstable phase and is very sensitive to conformity. This study aims to analyze the relationship between compliance and learning motivation of students in class X of SMKN 2 Kota Solok. The population in this study was Class X, Department of Light Vehicle Engineering, SMKN 2 Kota Solok, for the 2020/2021 academic year, there were 120 students. The sample for this study consisted of 48 students from SMKN 2 Kota Solok. The sampling technique in this study used a random sampling technique. The results of this study indicate the value of rcount > rtable which indicates the validity and the Cronbach alpha > 0.6 which indicates the reliability of the research data. After analyzing the correlation test, it was found that the high level of compliance in class X resulted in the inhibition of students' motivation to learn. Students who perform well tend to be noticed by their peers and have higher motivation than students who perform well and tend to be ostracized by their peers.
Sintesis Nanopartikel Magnetit (Fe3O4) dari Bijih Besi dengan Penambahan Asam Laurat Siska Febriyani; Syamsi Aini
Natural Science Vol 9, No 1 (2023)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v9i1.5763

Abstract

Sintesis nanopartikel Fe3O4 berbahan baku bijih besi dari Nagari Aie Dingin Kabupaten Solok dengan agen pelapisnya asam laurat telah dilakukan menggunakan metode kopresipitasi. Untuk melarutkan bijih besi, digunakan larutan asam klorida (HCl) dengan konsentrasi 12 M sebanyak 20 ml dan larutan amoniak (NH4OH) dengan konsentrasi 6,5 M sebanyak 25 ml digunakan untuk pengendapan. Penelitian ini bertujuan untuk mengetahui dan menganalisis pengaruh asam laurat terhadap struktur kristal dan ukuran partikel Fe3O4. Penggunaan asam laurat bertujuan untuk menghambat pertumbuhan partikel dan mencegah oksidasi magnetit menjadi hematit atau maghemit serta menyeragamkan ukuran partikel serbuk hasil sintesis. Variasi asam laurat yang digunakan adalah 0 g, 1,25 g, 2,5 g, 3,75 g, dan 5 g. Instumen untuk karakterisasi yang digunakan yaitu XRF dan XRD. XRF dilakukan untuk mengetahui komposisi unsur yang ada pada bijih besi dan XRD dilakukan untuk menentukan fasa dan ukuran kristal sampel. Berdasarkan persamaan Scherrer-Debay, ukuran kristal untuk masing-masing sampel secara berurutan yaitu 23,3 nm, 20,4 nm, 18,1 nm, 23,3 nm dan 27,2 nm. Dari keseluruhan sampel didapatkan kondisi optimum pada penambahan 2,5 gram asam laurat dengan ukuran kristal 18,1 nm.
Co-Authors Agus Firman Syamsi Aini Wahyu Tri Prastyo Wiskarni Wiskarni Zamzami Zamzami