Analisis Pemahaman Konsep Pada Materi Gelombang Bunyi Dan Gelombang Cahaya Pa…

The main purpose of this research is to know the level of understanding of student concepts in sound wave and light waves material on class XI senior high school in the Tampan Pekanbaru. Population of this research are all students of class XI in senior high school 12 Pekanbaru and senior high school 15 Pekanbaru. and the sample of this research was 65 students. The research instrument was a co…