Why does a hole in a flying airplane cause things to get sucked out into the sky?
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they’re not sucked out, they’re pushed out…. Airplane cabins are pressurized to about 8000 feet vs planes flying at 35000 feet where the air pressure is lower. Air rushes out of the plane (wind) trying to equalize pressure. And takes anything along with it.
The secondary effect of the air outside the plane moving much faster (relative) to the air in the cabin can create air currents in the cabin. Sometimes if you open the windows in a moving car, papers/etc inside can get blown out.
Think of a ballon full of air and glitter. Break the ballon and all the air rushes out and pushes all the glitter with it.
That does not happen, nothing is sucked out.
If you have a pressurized airplane and you get a hole in the skin the air inside will get blown out. It is no diffrent that if you puncture an inflated tire air will escape from it or any other container with pressurized gas inside. The pressure will equalize and it is the high pressure inside not the low pressure outside that does the work.
The reason airplane is pressurized is that air pressure drop with altitude and human need have high enough air pressure to be able to survive.
If you have a hole in the airplane you can get an effect from the air that moves around it too. But the same happens for an object that moves through the air at speed at ground level too
As a couple others have said, it’s just a difference of air pressure. At high altitudes the air pressure outside the plane is very low. They pressurize inside the plane so everyone can breathe normally. Them if there’s a tear or opening in the plane, the pressure will equalize and flow outside, but it does that REALLY fast.
Most long distance passenger planes fly very high. That’s because when the outside air is thin, airplanes can fly faster and use less fuel.
Humans constantly need a certain amount of oxygen. If they don’t get enough, within very few minutes they will get sick or die. So to keep passengers comfortable and safe, a passenger airplane that flies very high will always have air pumps to make sure there’s enough air in the cabin.
That means there’s a pressure difference. So if there’s a sudden hole when the airplane is very high, the extra air that’s been slowly pumped into the cabin over many minutes will rush out through the hole in seconds. The fast moving air is basically a powerful wind that blows objects into the hole.
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