Why, when you release an inflated untied balloon, does it shoots off into the air? Would the same thing happen if the balloon were released in a vacuum?
2007-02-19 19:01:47 · 2 answers · asked by clara y 1 in Science & Mathematics ➔ Physics
Depends what you fill it with. If you fill it with air from your lungs it will rise until the air in it cools to the temperature of the air outside it and then the weight of the balloon material will bring it back down to Earth ( wind and air thermals not withstanding ). Fill it with Helium and it will rise until the pressure outside the balloon gets low enough that the differential is sufficient to burst it.
Fill it with air in a vacuum and it would burst immediately. Unless you made the balloon out of thick/strong enough material. The pressure difference between the air in it and the vacuum would be far too much for a normal balloon to handle.
2007-02-19 19:07:40 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It is a little like a rocket engine with the stretched rubber of the balloon squeezing the air out the untied end. And it would work in a vacuum if you could keep the balloon from bursting first.
2007-02-20 03:57:17 · answer #2 · answered by ZORCH 6 · 0⤊ 0⤋