2006-07-14 23:26:20 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Fire = hot gasses. Their density is smaller than the density of air.
When the fire goes up, cooler air can fall down and fill its place.
The net result is, that the gravity energy is less..
2006-07-15 00:42:19 · answer #1 · answered by Thermo 6 · 1⤊ 0⤋
it is not the fire but hot air goes up and we see the flame of fire along with the air going up.
2006-07-14 23:32:36 · answer #2 · answered by Amod M 2 · 0⤊ 0⤋
As air is heated from the fire, it is forced upward, causing a rush of colder air to replace the moving hot air, this us called an updraft. It is a basic physic principle
2006-07-14 23:30:18 · answer #3 · answered by thebushman 4 · 0⤊ 0⤋
Air ih the area around the fire gets heated and raises up.frsh air enters to that place causing raising of fire.
2006-07-14 23:39:43 · answer #4 · answered by vasan 4 · 0⤊ 0⤋
The contents of flame is lighter than air.
2006-07-14 23:43:15 · answer #5 · answered by Anonymous · 0⤊ 0⤋
hot air goes up, cold air goes down
2006-07-14 23:30:19 · answer #6 · answered by ... 3 · 0⤊ 0⤋
Warm air is going up.
2006-07-14 23:39:11 · answer #7 · answered by JAMES 4 · 0⤊ 0⤋
hot air rises !
2006-07-14 23:33:23 · answer #8 · answered by Ω Nookey™ 7 · 0⤊ 0⤋
HEAT GOES UP
2006-07-14 23:28:32 · answer #9 · answered by MIKE B 4 · 0⤊ 0⤋