2006-08-01 03:12:19 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Weather
The same mass of air expands, so its density decreases. Thus, "warm air rises."
2006-08-01 03:15:05 · answer #1 · answered by Steve W 3 · 1⤊ 0⤋
Density = mass/volume, so if something weighs the same but takes up more space, it is going to be less dense. Gas molecules aren't held together tightly like those of liquid or even more so as solids are. If you add heat energy, theu will be in greater motion and move further apart thus becoming less dense. Picture a hot air balloon.
2006-08-01 03:18:03 · answer #2 · answered by bioguy 4 · 0⤊ 0⤋
The DENSITY of a substance is directly proportional to its MASS and inversely proportional to its VOLUME. That is:
D = mass / volume
Air, when heated, will expand (as with most substance). Thus, increasing its volume. And increasing its volume without increasing its mass will DECREASE its density.
2006-08-01 03:28:32 · answer #3 · answered by Askhole Ninja 3 · 0⤊ 0⤋
warm air rises, therefore it must be less dense than the surrounding air.
2006-08-01 03:16:48 · answer #4 · answered by davidosterberg1 6 · 0⤊ 0⤋
It gets covered up by the Republicans
2006-08-01 03:15:39 · answer #5 · answered by jonnygaijin 5 · 0⤊ 0⤋
It becomes less dense.
2006-08-01 03:15:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋