I understand most of the physics of soda. The bubbles are carbon dioxide in the form of gas and they are rushing to the top to escape from the liquid. I'm trying to figure out why soda bubbles when you shake it. My guess is that when you shake it you're adding energy (work) to the soda and carbon dioxide needs more energy to form gas bubbles in the soda, so that added energy causes the carbon dioxide gas. Let me know if this is correct.