It shows that PBL improve students' conceptual understanding of the Doppler effect material.Įn este artículo se analiza la relevancia de Audacity para la creación de materiales educativos, tanto elaborados por docentes, como por estudiantes, ya que posee multiplicidad de funciones y aporta numerosas ventajas, a pesar de su sencillo uso. The results showed that the average value of PBL class students' learning outcomes related to students' conceptual understanding was higher than conventional classes. The data analysis used was an independent sample T-test. The research procedure was a conceptual understanding test, which was carried out during the research process. Both the experimental and the control classes were in class 11 of the science major of Christian Senior High School Ambon. This type of research is experimental with a total of 58 students. The purpose of this study was to analyze the effect of PBL on students' conceptual understanding. Therefore, through this research, an exploration was carried out to determine the extent to which students' understanding of the Doppler effect material was carried out. Heretofore, research related to understanding concepts with PBL in understanding the Doppler effect material in depth is still minimal. One of the learning models that can sharpen and encourage students' understanding of physics concepts is problem-based learning (PBL). Understanding the concept is one of the essential needs teachers pursue in improving student competence in the current era of openness. Hence, the tools and experimental approaches generated in this study are excellent for use in the learning activities so that teachers can teach physics applicatively. The results of the measurement of kinetic friction coefficient in this study have a match with the results obtained in the other studies.
the kinematics concept to identify the load acceleration and the concept of the dynamic to find the kinetic friction coefficient. Analysis of the calculation of kinetic friction coefficient used two concepts, i.e. The experimental setup was performed on the motion system of the mass of objects m 1 and m 2 that were connected through a pulley on a table and three solenoids are put under a table as the Electromagnetic Field (EMF) sensor. The objects of material the kinetic friction coefficient of which is going to be measured is rough acrylic with rough acrylic and wood with rough acrylic.
This study is designed to produce an experimental device for the measurement of the kinetic friction coefficient of material through magnetic induction using Audacity application.