Search

Optical devices are a complex material, most of the concepts are related to abstraction and visualization such as the formation of shadows and light trails, so that a good visual representation is needed to achieve this material competence. Visual representation in physics learning is important, but some teachers still find it difficult to instill this ability due to media constraints. Therefore, this study uses PBL-based flip-book media assisted by virtual laboratory simulations to overcome this problem. This study aims to determine the effectiveness of PBL-based flip-books assisted by Virtual Laboratory Simulation in improving students' visual representation skills on optical instrument material. The method used is quantitative with quasi-experimental methods, pretest and posttest through instruments based on visual representation indicators. The experiment was conducted in grade 11 of senior high school's student. The results of this study indicate that the use of PBL-based flip-books assisted by Virtual Simulation has a positive effect on students' visual representation abilities. This is shown in the acquisition of the N-Gain value of 0.828 in the high category. This study concludes that the use of PBL-based flip-books assisted by virtual lab simulations improves students' visual representation abilities. [ABSTRACT FROM AUTHOR]

This study aims at simulating the energy dispersion of graphene using Spreadsheet as a distance (online) learning as a solution for physics learning, especially for undergraduate students. Here we compare the simulation results of graphene's dispersion energy from various literatures and then discussed them from the educational point of view. The Spreadsheet is used to visualize the energy dispersions of graphene having hexagonal honeycomb lattice structure. The results obtained are graphene's energy dispersion simulations from various literature sources, especially from 2010 to 2019. Moreover, although the mathematical formulas are different, the graphene's energy dispersion profiles are mostly similar in wireframe and 3D surface patterns. These simulation results can be used in teaching undergraduate students in making simple simulations using Spreadsheet. [ABSTRACT FROM AUTHOR]

The main objective of this research is to create a signal processing simulation using Javascript programming language on acoustic waves. Signal processing uses Fourier Transform to convert signals from the time domain to the frequency domain. Acoustic wave samples were obtained from a Javanese musical instrument called Gamelan. Acoustic wave signals from Gamelan are chosen because there is still little research on Gamelan signal processing. This research has successfully created a simulation using Javascript programming language. The simulation can show the waveform in function of time and its wave spectrum. The convenience of this tools for distant learning is substantiated. [ABSTRACT FROM AUTHOR]