Particles in air, when heated go further apart than they already are thus becoming less dense and the colder denser air is heavier than the heated air.
So the hot air rises when the cold air sinks
This is also why people are most likely to get a headache in cold weather
The ideal gas law helps to explain why a hot-air balloon floats in the air. As the air inside the balloon is heated, it expands and becomes less dense than the surrounding air. This creates a buoyant force that allows the balloon to float.
Raising the air temperature inside the envelope makes it lighter than the surrounding (ambient) air. The balloon floats because of the buoyant force exerted on it. This force is the same force that acts on objects when they are in water
A hot air balloon rises and floats in the air because the air inside the balloon is heated, making it less dense than the surrounding cooler air. This difference in density creates lift, allowing the balloon to ascend.
A rubber ball rises up in the water because it is full of a substance (rubber) that is lighter than the same volume of water. A hot air balloon rises up into the cool air because it is full of a substance (hot air) that is lighter than the same volume of cool air. The hot air balloon floats in cool air, just like the rubber ball floats in water.
To put it simply, hot air balloons rise due to heat produced by the burning of propane, the heat travels up through the balloon's valve into the balloon itself (the envelope) and up to the parachute valve. Since heat rises, the hot air balloon its self rises. Better answer: a boat floats on water because it weighs less than the water it replaces. likewise, a hot air balloon floats, because the weight of the total balloon + hot air is less then the volume of cold air it replaces. Air has a weight too, but normally you don't notice.
A hot air balloon floats in the air because it is buoyant due to the hot air inside the balloon being lighter than the cooler air outside. It is not propelled by engines or wings like an airplane, so it is more accurate to say it floats rather than flies.
Hot air balloons, sail planes, kites.
The hot air is less dense than the air surrounding the balloon, so it floats in the surrounding air.
Hot air makes a hot air balloon rise because hot air is less dense than the cooler air around it, so the hot air balloon floats on the cooler air around it.
Hot air balloon.
hot air baloons are able to fly because the hot air that is released in to the ballon wants to get out so there for it keeps pushing and that is how a hot air balloon floats
A hot air balloon floats because the air inside the balloon is heated, making it less dense than the cooler air outside. This difference in density creates a lifting force called buoyancy, allowing the balloon to rise in the atmosphere.
The ideal gas law helps to explain why a hot-air balloon floats in the air. As the air inside the balloon is heated, it expands and becomes less dense than the surrounding air. This creates a buoyant force that allows the balloon to float.
It is hot, and less dense than the air it displaces. It floats of the cooler, denser air.
It is hot, and less dense than the air it displaces. It floats of the cooler, denser air.
Hot air is less dense than cold air so it floats upwards. If you encapsulate this hot air with a bag and the lift produced exceeds the mass of the bag, the bag or balloon will be carried up with the hot air too.
A lantern floats in the sky due to hot air produced by a lit candle inside the lantern. The hot air is less dense than the surrounding air, causing the lantern to rise. This phenomenon is known as hot air ballooning.