The ballon contains a fixed amount of gas producing internal pressure. At the surface, this pressure equals the surface atmospheric pressure. As the balloon rises, the atmospheric pressure drops, allowing the balloon to expand, keeping the internal pressure and external pressure equal. If the balloon is fully inflated at the surface it will burst at higher altitude.
Ever see those massive gas burners on a hot air balloon? That's how they rise: They heat the air inside the balloon. This makes the air inside the balloon less dense and therefore lighter than the surrounding air. Provided the combined weight of balloon, burner, basket, passengers etc, is not too heavy the balloon will then float, sort of like a cork in water.
It's the reason why smoke from a fire will rise up the chimney. Originally it was thought to be a property of the smoke that made it rise and early hot air balloons burned lots of damp straw to make smoke. Luckily for those people who fly in hot air balloons it was realised that just regular air when heated would do the job!
Typically they are filled with helium that is lighter than air and the balloons float up through the denser atmosphere, pulling their payload of equipment upo into the higher levels of the atmosphere.
Because helium weighs less than air.
Balloons rise because the gas inside them, usually helium, is less dense than air.
Air pressure goes down as you get further from the surface of the Earth. So there is less pressure on the outside of the balloon, so the gases inside expand more, making it larger.
Because of the difference in temperature as the balloon risses.
atmospheric pressure
If the balloon is filled with water, and the water freezes, the balloon will expand and may burst. This is because at temperatures below 4ºC, water begins to expand and as it turns to ice, it has a larger volume than when it was liquid.
it should not built that because it will expand in the extrem heat
If the food has water in it then it will expand.
a railway track has a little distance maintained between the two rails,this is so 'cause during summer they expand and if they don't have distance maintained they bulge causing train accidents and during winter they contract causing the rails to snap
Charles' Law describes how gases expand when they are heated. Jacques Charles conducted experiments by filling balloons with various types of gases, then heating them and observing how they expanded.
All balloons expand in heat.
The ballon contains a fixed amount of gas producing internal pressure. At the surface, this pressure equals the surface atmospheric pressure. As the balloon rises, the atmospheric pressure drops, allowing the balloon to expand, keeping the internal pressure and external pressure equal. If the balloon is fully inflated at the surface it will burst at higher altitude.
YES
Excites the air particles inside causing it to expand
The hot water heats the air inside the balloon - making it expand.
With helium filled balloons, they rise upwards as the gas inside is of a lower density than the atmosphere around them. The balloon will continue to rise and the gas inside it will expand as the atmospheric pressure decreases with increasing altitude. Eventually, the gas inside the balloon will expand enough to burst the balloon and the balloon will fall back to the ground. When and where this happens depends on weather conditions, air temperature, the rubber used in the balloon, etc.
heat from the sun causes the gas inside the balloon to expand.
Expand your tree up and out to reach the hot air balloon to get bonuses.
As the external pressure drops with increasing altitude, balloons generally expand with height.
the combination of air and heat cause the ballon to expand, therefore, the ballon will float.
rain and dampness makes the football expand
All solids expand when they are heated. Examples include concrete slabs having spacers between them to accommodate expansion, and balloons expand with air being pumped into them and contract when air is let out.