Introduction
Our rocket is a two liter bottle with another two liter bottle with the bottom cut out on top. It has four right triangle fins made of balsa wood and little plastic pilot in between the two bottles. When we ended we had only one fin left on the rocket. Our test variable is how much pressure we pump into rocket. We chose this because it is something that is easy to test that will result in going higher. Our question is, “ If we have a higher pressure will the rocket travel further.” Our hypothesis was, “If we have a higher pressure than the rocket will travel further because the higher the pressure results in a further distance.” In conclusion, this is how we started on our bottle rocket project.
Procedure
We decided that our variable would be a change pressure. We first thought we would test 20,40,60, and 80 psi but we had to change it because the pump we used wouldn't go to 20. We then changed the pressures that we were testing to 30,60, and 90. For each test we used the same amount of water. At least one fin fell off every time we tested but if it wasn’t broken we would glue or tape it back on. In the end we ended up with only one fin left on our rocket.
Our collected data would not copy to weebly so here is the summarized version:
Avg height: 24 meters
The data graph we made represented that our hypothesis was incorrect and the more pressure does not necessarily mean that the rocket will go higher.
Conclusion
In the end, our hypothesis was both true and false; the first launch went a good distance and the second did as well, but the third ended up going only a fraction of the first. This alone was a disappointment, but we also had many difficulties with the rocket itself . For example, our first launch went horribly wrong and made the rocket veer sideways resulting in a crushed rocket missing two of it’s four fins. We ended up finding one of the two lost fins and made repairs to the body of the rocket ,but we wasted a day on that first launch and it resulted in unusable data. Testing didn’t really result in positive changes to the rocket, of course there were many to be made but the owner of the rocket was deadset on not changing it so we had to deal. If I had any advice for other participants working on the rocket project, it would be: get on it fast because Brian likes moving on very quickly. All in all, these are our findings from the bottle rocket project.
Our rocket is a two liter bottle with another two liter bottle with the bottom cut out on top. It has four right triangle fins made of balsa wood and little plastic pilot in between the two bottles. When we ended we had only one fin left on the rocket. Our test variable is how much pressure we pump into rocket. We chose this because it is something that is easy to test that will result in going higher. Our question is, “ If we have a higher pressure will the rocket travel further.” Our hypothesis was, “If we have a higher pressure than the rocket will travel further because the higher the pressure results in a further distance.” In conclusion, this is how we started on our bottle rocket project.
Procedure
We decided that our variable would be a change pressure. We first thought we would test 20,40,60, and 80 psi but we had to change it because the pump we used wouldn't go to 20. We then changed the pressures that we were testing to 30,60, and 90. For each test we used the same amount of water. At least one fin fell off every time we tested but if it wasn’t broken we would glue or tape it back on. In the end we ended up with only one fin left on our rocket.
Our collected data would not copy to weebly so here is the summarized version:
Avg height: 24 meters
The data graph we made represented that our hypothesis was incorrect and the more pressure does not necessarily mean that the rocket will go higher.
Conclusion
In the end, our hypothesis was both true and false; the first launch went a good distance and the second did as well, but the third ended up going only a fraction of the first. This alone was a disappointment, but we also had many difficulties with the rocket itself . For example, our first launch went horribly wrong and made the rocket veer sideways resulting in a crushed rocket missing two of it’s four fins. We ended up finding one of the two lost fins and made repairs to the body of the rocket ,but we wasted a day on that first launch and it resulted in unusable data. Testing didn’t really result in positive changes to the rocket, of course there were many to be made but the owner of the rocket was deadset on not changing it so we had to deal. If I had any advice for other participants working on the rocket project, it would be: get on it fast because Brian likes moving on very quickly. All in all, these are our findings from the bottle rocket project.