Using dynamics or volume is another way composers animate their pieces of music. Playing softly and playing loudly - how hard can it be, right?! Well as flutists we can make some easy mistakes when attempting to playing dynamics that means clear and focused flute tone AND our intonation can suffer. Nooooo!!!!
If you're a total beginner there's also an easy reference guide for common dynamic symbols, signs and Italian words. This is absolutely essential knowledge for every flutist.
Read more in this quick article http://www.theflutecoach.com/dynamics-in-music/