Adam was watching television. His Mom asked him to turn the sound down. Adam used this button on the remote to turn the sound down.What do we call loudness?

You know a lot already about energy but did you know that sound is made by energy? You know how we hear sounds. Not all sounds are the same, of course. Some sounds are loud and some are soft. Sounds have different pitches. Some are high and some are low. Musical instruments can play different notes.