Rocket Project
Rocket Project Summary
By:Caitlyn Mulcahy This project was a really fun, informative, and enjoyable. My team consisted of Sabina Albright, Taylor Park, and myself, Caity Mulcahy. Our rocket’s name was rarity. We built this rocket by with these materials: two two liter bottles, some duct tape, hot glue, cardboard, and some paint. We cut one of the two liter bottles about half way. Then we put the uncut one into the cut one so that there were two chambers. This would allow more pressure to build up and get us to get the rocket to go higher. After we put the rockets in the place we wanted them to connect we hot glued them. We tried to make sure that it would be airtight so we hot glued all around the area to make sure. We also duct taped the two bottles together so that any air that escapes from the hot glue was trapped. After that we cut little triangles out of the cardboard so that we had fins to help make the rocket would be aerodynamic. After this we had to figure out what amount of water we needed to put into the rocket. You can’t put too much into the rocket because then you won't be able to build up pressure, but you do need to have enough water to break gravity and get up into the air. We did some testing and found out that 750 grams of water worked pretty well for our rocket. Our variable that we were testing was pressure. We wanted to see if there was a breaking point, as in if there was a point where there was too much pressure that it didn’t work and what was the pressure under that works the best, but doesn’t kill our rocket. We only did three test and found out that 100 psi worked the best for our rocket. Some difficulties that we had were putting the rocket together. We really didn’t know how to approach this. Our first rocket was just two bottles glued together. I used a really hot glue gun and the glue melted the bottle. I asked my mom for some help and she helped me get some ideas that would actually work. After we got some ideas on paper we put the rocket together, this one was a success and we did the testing on this one. The data that we got for testing the pressure was: PSI ANGLE OF HEIGHT ROCKET MASS WATER(grams) HANG TIME(sec) 60 62 135 750 3.52 70 65 135 750 4.37 90 78 135 750 6.32 100 82 135 750 7.82 In conclusion I had a lot of fun with this project. I learned a lot about how the fins work on a rocket and how the mass and pressure effects the rocket. I learned that there are many factors you have to think about when you do a project like this one. |
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