vino2jaanu@yahoo.co.in
2006-07-25 01:28:26 · 9 answers · asked by vino 1 in Science & Mathematics ➔ Physics
If the air around the flame is calm, the flame will point up. The reason is that the heated gases of the flame and the air around it become less dense than the surrounding cooler air and are "pushed" upward. It is the same effect as a hot air balloon.
2006-07-25 01:33:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The gases that burn (vapour of the burning fuel) is hot and lighter than air. So the heavy air moves down and the lighter gases move up ...and thats why the flame is pointing upwards
2006-07-25 08:38:13 · answer #2 · answered by mailtoneerajm 1 · 0⤊ 0⤋
When anything burns, it produces heat. Heat makes gas expand. Expanded gas takes up more space per. unit weight.. So since the hot gas is lighter than the gas around it, it is forced upward by gravity pulling the heavier gas down around it.
2006-07-25 08:41:55 · answer #3 · answered by waukez 2 · 0⤊ 0⤋
Because fire has negative mass lighter than air that causes the element to rise up rather than to go down.
2006-07-25 08:48:09 · answer #4 · answered by Charles D 2 · 0⤊ 0⤋
when fuel burns , it produces gases and the presure of gases causes burning pointed upward.
2006-07-25 08:33:15 · answer #5 · answered by eshaghi_2006 3 · 0⤊ 0⤋
because heat is light and light substance goes upward
2006-07-25 08:39:33 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Because heat rises in our atmsophere.
2006-07-25 08:35:40 · answer #7 · answered by szydkids 5 · 0⤊ 0⤋
convection, heat rises
2006-07-25 08:35:27 · answer #8 · answered by randy072760 2 · 0⤊ 0⤋
a flame IS hot gaz particles.
And hot gaz... goes up...
2006-07-25 08:34:07 · answer #9 · answered by Anonymous · 0⤊ 0⤋