Pelatihan dan Pendampingan Pembuatan Media Pembelajaran “Tabung Resonansi” Untuk Guru Fisika di SMK Al Amin Kilang
Abstract
This training and mentoring activity aims to increase the knowledge of teachers in making physical learning media, especially sound wave material at SMK Al Amin Kilang. The learning media created from this training is a resonance tube. Tools and materials used are statif of wood, used bottles, paralon pipes, speakers, trafo, amplifiers, water hoses and thermometers. To generate sound waves on resonance tubes used simulation applications from PhET. Based on the results of resonance tube training activities made can show resonance symptoms. The quick value of the resulting sound wave propagate is 347,225 ± 2.95 m/s at a temperature of 250C and 353.375 ± 4.18 m/s at a temperature of 310C. This can prove that the higher the air temperature, the faster the sound waves that propagate in the air. The coefficient of deviation of this resonance tube is not up to 2 %, which is 0.85 % for the temperature of 250C and 1.182 % for the temperature of 310C. Thus, these resonance tubes can be used in standing wave experiments.
Moraref