Next, we slid on a collar of 11/2" PVC at the lip of the bottle. Inside the collar, we put a few layers of duct table so that it would have a grip against the top of the zip ties. Then, we added a stainless steel clamp around the duct tape just to make sure that there was no leverage for any items to fall.
My partner and I started to complete our launching mechanism. We added a rubber band on the outside of our bottle, attaching twelve zip ties. We put a layer of duct tape around the zip ties and rubber bands to hold them down.
Next, we slid on a collar of 11/2" PVC at the lip of the bottle. Inside the collar, we put a few layers of duct table so that it would have a grip against the top of the zip ties. Then, we added a stainless steel clamp around the duct tape just to make sure that there was no leverage for any items to fall.
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My partner and I gathered our materials for our launch releasing mechanism for our rocket. We gathered a two liter bottle, PVC piping, zip ties, duct tape and stainless steel clamps. We had to find a two liter bottle that was wide enough in diameter for our PVC pipe to fit through easily. We didn't want the PVC to be loose and accidentally fall out.
Today we managed to put a 1' 1/2" pipe into our two liter bottle. We put all of our materials to complete our project together so none of our parts would go missing. Today my partner and I added screw eyes to our launch board. We also tightened the low pressure pipe down because it was a little wobbly. We are starting on the release mechanism now and plan to quickly, but properly, get it finished.
Today, my partner and I began assembling our rocket. We fabricated our launch pad which will have our PVC pipe attached to it. We have put together two different sections of PVC. We connected all of our PVC with PVC cement which will hold all of our piping together. We also used epoxy to keep our O-ring together with out PVC pipe.
We tested average velocity using the formula Displacement over Change in Time. We observant of the relationship between the angle of the launch and the average velocity. Our conclusion was the lower the launch angle the higher the average velocity.
On this day, we tested several different launch angles. We tried to see which angle would make the rockets go further and which ones would make the rocket not fly so well. We came up with a hypothesis that the lower the angle, the further the rocket would go.
Today we edited our websites. I changed up everything that we thought wasn't relevant. I edited my engineering process and discussed idea with the other members in my group.
Today I finished up all of my launches for my straw rockets. Now I am starting on lab two which will be varying in variables by changing up the mass of the cone heads on our rockets. I did several didn't trials and collected different data with each launch.
Today I got my first trial done with Rocket A and B. Both rockets have been made out of straws, a little bit of clay and some post cards. I had to be careful and make sure everything was the same size and the two clay cones weigh the same. We didn't want any variable to change other than the length of the rockets. I made a hypothesis that my longer rather would go father than my shorter rocker. So far I have figured out that my shorter rocket has a shorter distance rather than my longer rocket. I discovered that the independent variable is the length of the rocket. The dependent variable is the distance the rocket traveled.
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AuthorMy name is Chelsie Jasper. I am a 16 year old junior at Kelton ISD. I am the main editor for this website. I have a helpful partner throughout this blog. I plan on attending Amarillo College for two years and then transferring to West Texas. My partner, Jasmine, plans on attending UT ( University of Texas) and become a mechanical engineer. Archives
December 2015
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