Operation and its application

The Bottle is partly filled with water and then it is sealed. The bottle is then pressured with gas and in this case it’s usually from a bicycle pump and this is what I will be using. The water and the gas in the bottle are used as a combination. The gas provides the means for it to contain the potential energy and it is compressible. The gas in the water increases its mass fraction (the amount of mass left behind such as the stages of rockets) and allows for the rocket to go higher. Through my research I have learned that there are other substances that I can add to the bottle so that it can fly to a higher distance. Such items included could be salt which increases the density and results in a higher specific impulse. 

Creating a rocket is very tricky. When it comes to designing a real rocker the nozzle is what allows for thrust so that the rocket can be pushed into the sky. In my water rocket the seal on the nozzle of the rocket is then released and the water releases at great speeds until the propellant has been used up and the air pressure inside the rocket declines to atmospheric pressure, this meaning that it no longer has any pressure applied to it. A law which explains why the bottle sprite to a great distance is Newton’s third law. This law explains that there are always opposite and equal reactions to each and every reaction, thus explaining the idea why the rocket is able to be launched into the sky at such a high altitude. The usual pressure ranges from 75 to 150 psi. Of course the more pressure that the bottle has stored in , the more that it will increase in altitude. Another law which I have learned about in chemistry is the Boyles law. This law states that as pressure increases volume decreases. Though the volume decreases this does not mean that it will lose its potential energy, on the contrary it energy increases, thus producing a more kinetic energy.