Cold air falls and warm air rises. Warmer air rises above cooler air because it is less dense. The particles vibrate and move further apart so the molecules that compose the air are more spread out, causing the warm air mass to weigh less than the cool air.ass
Warm air is less dense than cool air because the air molecules in warm air have higher energy and move around more, resulting in a larger volume for the same mass. This decrease in density causes warm air to weigh less than cooler air.
no cold air is heavier because it sinks and hot air rises
Cool air is more dense than warmer air.
because it doesnt rise like warm air
yes
Warm air is less dense than cool air.
In the beginning of what ? At the end of what ?Do you mean "Why does hot water cool faster than cool water ?" ?Because the rate at which heat passes from a warm object to a cool objectdepends on the difference in their temperatures. So, as the warm objectbecomes less warm and the difference in their temperatures becomes smaller,the rate at which heat flows between them also becomes less.
Heat travels from warm to cool.
Sound travels faster in warm water than in cool water because the molecules in warm water are more spread out and can transmit sound waves more efficiently. The speed of sound in water increases with temperature.
Mostly they expand as they warm, contract as they cool.
Warm air is less dense than cool air.
Sooo many fingers
In the beginning of what ? At the end of what ?Do you mean "Why does hot water cool faster than cool water ?" ?Because the rate at which heat passes from a warm object to a cool objectdepends on the difference in their temperatures. So, as the warm objectbecomes less warm and the difference in their temperatures becomes smaller,the rate at which heat flows between them also becomes less.
Because warm air is less dense then cool air.
Cool air is denser than warm air, making it less likely to rise. It also cannot hold as much moisture as warm air.
Heat flows from a region where there is a lot to where there is less.
Because warm air rises over cool air. Warm air is less dense than cool air, and it's lifted by buoyancy and floats on the more dense cool air.
If they are both under the same pressure and are the same in volume, then, yes, warm air has fewer molecules
"Cool air rises and warm air falls" is false. Cool air is denser than warm air, and therefore warm air will rise above cold air.
No, warm air is lighter than cold air because hot air rises and cold air stays in the same place.
Warm air molecules are fast moving and therefore less dense than cold air molecules. Since cold air is more dense (more slowly moving) it sinks.
Convection takes place because cool air is less dense than warm air.