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PENERAPAN MODEL GUIDED CONTEXT-AND PROBLEM-BASED LEARNING UNTUK MENINGKATKAN PEMAHAMAN KONSEP PADA MATERI GELOMBANG BUNYI I Made Hermanto; Nurhayati; Indrawati Tahir; Muhammad Yunus
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 11 No 1 (2023)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v11i1.36233

Abstract

This study aims to improve students' understanding of sound wave material through the application of guided context- and problem-based learning (GC-PBL) models. The method used was a quasi-experimental design with a non-randomized control group pretest-posttest design. The sample in this study was class XI MIPA, which consisted of two classes, namely class XI MIPA 3 as the GC-PBL class and class XI MIPA 2 as class C-PBL. The instrument used is a comprehension ability test. The results obtained showed that students in the GC-PBL class experienced an increase in the high category, while students in the C-PBL class experienced an increase in the medium category. Differences in the increase in understanding ability were then tested statistically and showed that there were significant differences. The implications and recommendations in this study are discussed.
Penentuan Distribusi Suhu pada Pelat Logam dengan Cara Menyelesaikan Persamaan Diferensial Eliptik Menggunakan Microsoft Excel Lukman Samatowa; Septiana Kurniasari; Muhammad Yunus; Relita Damopolii
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 11 No 1 (2023)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v11i1.36382

Abstract

This study aims to visualize the temperature distribution on metal plates by solving elliptic differential equations using the help of the Microsoft Excel program. Many physics problems have limited analytic solutions so a numerical solution is needed. One of them is about the temperature distribution on a homogeneous metal plate in a steady-state conditionThe equation of heat flow in steady-state conditions is an elliptic partial differential equation (PDE). By solving this equation, we will have a numerical model of the plate that can be a mesh with a certain temperature point. Each point has been known to calculate the temperature value. The temperature value influenced. The Temperature value influenced borders on the plate and the presence of heat generation. The edge of the plate can be a constant temperature, a convection zone with the outside air, or an isolated edge. This model is then processed using Microsoft Excel with the iteration calculation until the temperature distribution value is obtained. The results obtained a graphical visualization of temperature distribution on the plate.