What makes a firework rise into the air?

Question

Please I need help on it. I'm trying to do an experiment on fireworks for the science fair.

Answer 1

like any rocket, a firework develops thrust by throwing mass backward

that mass is mostly combustion products (gasses like CO2) from burning the propellant

the products of combustion don't weight that much but they exit at a high velocity

the combined momentum of the rocket exhaust will equal the momentum imparted to the rocket

there are losses and some other stuff but simple and pure without air resistance or gravity (hovering in space perhaps) it would work like this

if you discharge 1 gm of exhaust at 500 miles/hr, then a 100 gm rocket would be going 5 miles/hr, exhaust some more, it goes faster

on earth you have to impart enough momentum to overcome the downward accelleration due to gravity and then provide upward accelleration so it takes even more (or faster) exhaust

spray down, move up
action, reaction etc

Answer 2

According to Newton's third law of motion: For every action there in an equal and opposite reaction. The pyrotech has it right also. It is all part of the laws of motion. In order to get off the ground, the object must be pushed off the ground, that is where the fuel in this case black powder) comes into play. Anyway there must be some kind of explanation in your science books. Look it up.

Answer 3

A chemical reaction is taking g place in the rocket motor and the build up of high pressure gas escaping thru the rocket's end is forcing the rocket to rise as the pressure lessens within the rocket tube.

Answer 4

Lift, That is what we call it. It is slow burning black powder that when ignited propels the shell or rocket upwards, a timer fuse is ignited at lift off and causes the shell to burst at its azimuth.

Answer 5

It's running from the fire coming out of it's butt...

Answer 6

it runs on GUN POWDER SO I THINK THAT WOULD ANSWER YOUR QUESTION

Answer 7

Fire