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Hot air rises because it occupies a greater volume per unit mass of air than cooler air, this makes it less dense. A hot air balloons fire generates hot air which floats inside the balloon, causing it to rise.
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∙ 14y ago
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What uses convection?
Lava lamps and hot air balloons
Which gas do you use for hot air balloons?
Hot air is used for hot air balloons.
Which gas is used in hot air balloons?
Just regular air, which is heated. That's why they are called hot air balloons! The fuel gas used for heating the air is usually propane.
What last longer helium fill balloon or hot air balloons?
hot air balloons
Which force allows hot air balloons to fly?
Buoyancy allows hot air balloons to fly.
What uses convection?
Lava lamps and hot air balloons
Which gas do you use for hot air balloons?
Hot air is used for hot air balloons.
Why do we use warm air in a hot air balloons?
This is because of convection. Hot air rises and cool air falls which causes the balloon to rise.
What are hot air balloons used for now a days?
Hot air balloons are now mostly used for leisure
Why is hydrogen used to inflate hot air balloons?
Hydrogen is not used to inflate hot air balloons. Just regular air is used which is then heated to make the balloon more buoyant as hot air weighs less than cold air. Hence the name hot air balloons.
Why were hot air balloons important to the civil war?
Hot air balloons were used for reconnaissance during the civil war.
Can hot air balloons get above the troposphere?
No because the air gets too cold for convection to happen, causing the hot air balloon to stay in place or even fall
Which gas is used in hot air balloons?
Just regular air, which is heated. That's why they are called hot air balloons! The fuel gas used for heating the air is usually propane.
How were hot air balloons used by the military?
The first use of hot air balloons was in the American Civil War for surveillance of troop movements.
How do hot air balloons use air to fly?
Hot air balloons use the fact that hot air rises as a way to make balloons fly. When the air inside the balloon is heated, it rises, and this creates lift which is used to make the balloon fly.
How were hot air balloons used during World War 1?
Hot air balloons were used to spy on the enemy. They were also used to communicate, send supplies, and drop bombs.
What source is used to fly hot air balloons?
Wind !... The balloons are filled with hot air, which causes them to rise. They are then at the mercy f the wind direction.
