eli5 why does it make a loud bang when you pop a plastic bag or bubble wrap?

Question

eli5 why does it make a loud bang when you pop a plastic bag or bubble wrap?

In: 2

Answer 1

Fun fact. Sudden change in pressure can go both ways to create a sound wave. Release of sudden high pressure (popping a bag) And sudden decrease of pressure. The fun thing about this to me, is the strange accuracy of teleportation in Harry Potter. Removing a person sized volume instantly from space, would create a pretty good sized vacuum of space that would collapse, and make a loud bang, just like in the story.