hot air or hot gas
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Inside a hot air balloon, there is a large fabric envelope filled with hot air. This hot air is created by a burner that heats the air, making the balloon rise and float in the sky. The basket is where passengers and the pilot stand during the flight.
it is the same temperture as it is outside the air balloon:)
Hot air balloons work by heating the air inside the balloon with a burner, which makes the air less dense and causes the balloon to rise. This is because the hot air inside the balloon is lighter than the cooler air outside, creating a buoyant force that lifts the balloon. By controlling the temperature of the air inside the balloon, the pilot can control the altitude of the balloon.
A hot air balloon flies because hot air inside the balloon is less dense than the cooler air outside. This temperature difference creates lift, allowing the balloon to rise and float in the air. By controlling the temperature of the air inside the balloon, the pilot can control the balloon's ascent and descent.
The name "hot air balloon" comes from the fact that hot air is used to make the balloon rise. The balloon is inflated with heated air, which is less dense than the cool air surrounding it, causing the balloon to lift off the ground.
Hot air balloons work by heating the air inside the balloon envelope using a propane burner. When the air inside the balloon is heated, it becomes lighter and less dense than the surrounding air, causing the balloon to rise. The envelope of the balloon is sealed, which allows the hot air to be trapped inside and keep the balloon aloft.