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∙ 15y ago
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Why does hot air float while cold air rises?
density
Where does the heat go from a cup of hot cocoa sitting on the table?
Hot air rises.
Why can you feel a match burn when you put your hand above but when it's underneath you can't?
Hot air rises.
Why would it be incorrect to say that heat 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".
How do you prove that hot air rises?
Hot air is less dense (lighter) than colder air, so warmer air will naturally rise above the cooler air.
How does the air density inside a balloon change as it rises from the ground to the air?
As a balloon rises from the ground to the air, the air density inside the balloon decreases. This is because air density decreases with altitude due to the decrease in atmospheric pressure. The air inside the balloon expands as it rises, causing it to become less dense.
Why is a hot air balloon able to lift itself?
because hot air rises
When hot and cold air meet the hot air rises to the top but which process causes the hot air to rise?
hot air rises because it is less dense than cold air..this occurs by the process of convection
Hot air rises cold air sink?
technically hot air does not really rise it is the cold air that sinks below it because it is more dense.
How does hot air rise?
Hot air rises because it is less dense than cold air.
What causes hot air to rise?
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.
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.
How do hot air balloons work in the atmosphere?
Hot air always rises, because it is less dense.
Why is air fresher near the ground in a fire?
because hot air rises
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.
What does hot air do?
hot air rises.
Why do helium and hot air balloon's rise?
Helium and hot air balloons rise because the air inside them is lighter than the surrounding air. Helium is lighter than the nitrogen and oxygen in the atmosphere, causing it to float upward. Similarly, hot air balloons rise because the heated air inside is less dense than the cooler air outside, creating lift.
