2006-07-05 06:11:54 · 6 answers · asked by bertie 1 in Science & Mathematics ➔ Physics
This is a science all by itself. I offer the following partial answer:
1) Chemicals in the fireworks are such that they burn rapidly, producing hot gases. These gases can be used to rupture the cardboard container, causing a bang as they do---firecrackers. They can also be used to propell a rocket by directing the gases downward--action causing a reaction, gases down at high speed causes rocket to go up--consevation of momentum.
2) Metal particles are set afire to produce glowing particles--different metals produce different colors--the starburst of a rocket.
3) Hot gases--the same sort as in ans 1)--can also be used to operate a whistle.
Maybe a rocket expert will give you a more complete answer. LOL
2006-07-05 06:20:38 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Fireworks are wonders of Chemistry. Compounds which release a lot of light and gas on being heated are used along with mild explosives. The colours we see are the result of metallic compunds which have been added being heated to their flashpoint. Nitrates are used as the initiators. Some common colouring materials are
Aluminium for white, Calcium or Strontium for Red, Barium for green, Iron or Cobalt for blue.
2006-07-05 13:19:50 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋
the matter(Barood) which can caught fire very easily and the storage space coupled with the area left for the gas to come out which seems to be fireworks.
2006-07-05 13:17:22 · answer #3 · answered by suchsi 5 · 0⤊ 0⤋
they have gun powder in it then light the fuse an it goes off
2006-07-05 13:14:31 · answer #4 · answered by kitkat 2 · 0⤊ 0⤋
you light them and they go bam --------- just watch the fire works i mean the space shuttle when it comes back to earth
2006-07-05 13:14:28 · answer #5 · answered by Anonymous · 0⤊ 0⤋
gun power burns there you go
http://chemistry.about.com/library/weekly/aa062701a.htm?once=true&
2006-07-05 13:15:01 · answer #6 · answered by Anonymous · 0⤊ 0⤋