Sound

While in my car, I remembered what we had learned in class so far about sound waves. In this video, the song is being played at a lower volume, then I turned the volume higher. Looking at the singer's voices, the two have different frequencies and amplitudes. Jason Mraz has a lower frequency (lower pitched), while Colbie Caillat has a higher frequency (higher pitched). They also sing some parts of the song louder than others, which would make the amplitude of a sound wave bigger. Although the singing changes frequency every time the singer changes notes, the beat of the song remains the same. Therefore, if I were to analyze one of the beats, the frequency would remain the same at any volume, but as I turn the volume higher, the amplitude of the sound wave would increase. Physics is everywhere.