balloons

[kilkenny]

Why do balloons bang when they are burst???

[ll_billym]

It isn't actually the balloon itself (i.e. the rubber) that makes the noise, it is the released air.

When the balloon is inflated the air inside is at at a higher pressure than the air outside, when the balloon is burst the air pressure inside tries to equalise with the air pressure outside. This cannot happen instantaneously so a wave of high pressure air is released, waves of high pressure are exactly what sound is so when the high pressure hits your ears you hear a bang.

Lifted from: here

[kilkenny]

Thank you. Very clear and easily understood.