density
Hot air rises.
Hot air rises.
It doesn't actually rise, so much as it does float on top of cold air. Think of it this way: If someone was floating in a pool, and we poured more water in the pool, did that person rise? They didn't actually do anything other than float there. Heat is the same way. It's not actively moving when it "rises".
Hot air is less dense (lighter) than colder air, so warmer air will naturally rise above the cooler 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.
because hot air rises
hot air rises because it is less dense than cold air..this occurs by the process of convection
technically hot air does not really rise it is the cold air that sinks below it because it is more dense.
because the equator is hot and heat rises the air gets hotter and rises
Hot air rises because it is less dense than cold air.
Hot air is lighter than cold air, so it rises up. Ex. A hot air balloon rises up because we heat the air and it goes up.
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.
because hot air rises
Hot air always rises, because it is less dense.
Yes, It is because in a hot air balloon the hot air rises and the cool air falls down.
hot air rises.