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The molecules in hot air (or any gas) are more spaced out and therefore less dense. As you probably already know from the oil & water experiment we all did in primary school, things with less density float over things with greater density.
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Why does a hot air balloon fly?
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Why is a hot air balloon able to lift itself?
because hot air rises
Why is an hot air balloon called a hot air balloon?
Because the fire or heating device heats the air in the top section ( the actual balloon ) and hot air rises... so the hot air trapped in the balloon makes the balloon rise :)
What makes hot air balloon rise?
Hot air rises. As the air in the hot air balloon is made hotter than the surrounding air it rises.
How do hot-air balloons fly?
Hot air balloons can fly because hot air rises. When the air inside the balloon gets hot, it rises above the cooler air around it, and it lifts the balloon and any cargo and passengers with it.
Why does a hot air balloon fly?
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Why does a hot balloon fly?
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Is a hot air balloon an example of convection?
Yes, It is because in a hot air balloon the hot air rises and the cool air falls down.
Why is a hot air balloon able to lift itself?
because hot air rises
Why is an hot air balloon called a hot air balloon?
Because the fire or heating device heats the air in the top section ( the actual balloon ) and hot air rises... so the hot air trapped in the balloon makes the balloon rise :)
How does the air density inside a balloon change as it rises from the ground to the air?
The air density inside a balloon changes as it rises because the hot air inside the hot air balloon is less dense than the air around it causing it to fly since hot air rises. But as it rises it loses its hot air causing it to eventually not be able to fly anymore and come down.
What makes hot air balloon rise?
Hot air rises. As the air in the hot air balloon is made hotter than the surrounding air it rises.
How do hot-air balloons fly?
Hot air balloons can fly because hot air rises. When the air inside the balloon gets hot, it rises above the cooler air around it, and it lifts the balloon and any cargo and passengers with it.
When does a air balloon rise?
A hot air balloon rises because when hot air is added it is intended to rise and when the hot air balloons wants to land, hot air is decreased.
Why does an air balloon float?
If you mean hot air balloon then it floats because hot air rises because it is less dense and with enough hot air caught in the balloon it can lift create enough lift to take off into the air. If you mean a helium balloon then it rises because helium in the balloon is less dense then the air around it. Since less dense things rise to the top the balloon will float.
Why does the heating of gas cause a hot air balloon to rise?
Because hot air rises and a hot air balloon utilizes this. As the hot air rises it lifts the balloon so that it lifts off from the ground. And the reason why the hot air balloon has a burner, the thing that is connected to the balloon itself and shoots flame into it, is because the hot air inside the balloon begins to cool causing it to fall so the burner reheats the air so that it doesn't return back to the ground.
How does warm air balloons float?
"Warm air", otherwise known as Hot Air Balloons, float because of one basic Law of Thermodynamics; heat rises. The air in a hot air balloon is hot, therefore, the balloon rises.
