The downward force of gravity, and the upward buoyant force
resulting from the low density air inside the balloon.
the higher you go the lighter the air is.
The force that lifts a hot air balloon is called buoyancy.
Bouyancy, pressure, and gravity.
upthrust and gravity
Buoyancy, air resistance and gravity. Hope this helps!! :)
the higher you go the lighter the air is.
The force that lifts a hot air balloon is called buoyancy.
When the balloon is hot the density of the air in it decreases and hence the upward thrust on the balloon increases and the balloon moves up and viceversa.
Bouyancy, pressure, and gravity.
upthrust and gravity
hot air balloon
Buoyancy, air resistance and gravity. Hope this helps!! :)
hot air rising (less dense air), gravity. aero dynamics dont do much
High winds, thunderstorms, or very cold air would have a detrimental effect on any hot air balloon flight.
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
In rising, a hot air balloon works the same way as a helium balloon : the hot air inside is less dense than the surrounding air outside the balloon. The heavier outside air pushes below the balloon and forces it upward. To come down is easier in a hot air balloon. Unless it is continually reheated, its temperature reverts to that of the surrounding air and the balloon settles back to the Earth under its own weight. Vents that release the heated air (like venting helium in a helium balloon) is an alternative to increase the speed of descent.
The first air spying was done in a hot air balloon during the civil war. So, in this may affected the outcomes of some battles or troop movements.