Shared experiences may help to develop an inquisitive mind. Close your eyes and listen carefully. Open your eyes and list all the sounds you heard and the source of the sound. Today we are going to learn how sounds are produced and we will talk about the qualities of sound. The vibrations move out from their source in all directions.
Sounds differ in amplitude and frequency.
The vibrating strings of a guitar produce sounds. When you pluck the string, it moves. The string has more energy when it has large amplitude. As you sing different notes, you sing different pitches. A doorbell is an example of how electrical circuits convert electrical energy into sound energy.