The Write-Up
In this next task, we will be building a rocket that achieves the highest altitude possible (minimum of 50 feet) while carrying an egg.
http://www.instructables.com/id/How-To-Make-A-Bottle-Rocket/
We found an article that explains how to build a bottle rocket. The article talks about when and where to place each materials and what materials you will need. It also shows a step by step process with pictures, so it will be easier to build and understand. The article also explains how to add a parachute to keep the egg intact. These things will help us make the best bottle rocket possible by reaching maximum altitude and it will keep the egg from cracking.
We will use the engineering design process to complete our task. As for materials it all depends on what kind of rocket you will be building and the size also depends, so for us since we are building the bottle rocket we have to use a two liter bottle in order for it to fit on the pipe and be able to be launched at least 50ft in the air.
Once started the building process the materials we used started to change. As far as the bottles and fins go that didn't change however for the cup for carrying the egg did. Instead of using a starbucks cup full of cotton balls we changed the material list and did a paper cup full of cotton balls to see if the lighter the better. Some testing to see if the parachute would work did change. We made the string more tighter to make sure it didn't fall.
The Test Reflection
For our first test we did the center of mass. This test measured where our center of mass is. This measurement is important because if our center of mass is too high then the rocket won’t fly straight. Our materials and process for the center of mass test was string tied towards the front until the rocket was balanced. Based on our findings I don’t think we would need to change anything about our rocket for the center of mass. For the center of pressure test or the silhouette test we cut out an outline of the rocket we had built then we tried to balance it on a thin line like the back of our chairs. The results of that test was the center of pressure was in the middle of the rocket. Based on the test results of this test I think the center of pressure is good so we would not need to change anything.
Rocket Link -
In this next task, we will be building a rocket that achieves the highest altitude possible (minimum of 50 feet) while carrying an egg.
http://www.instructables.com/id/How-To-Make-A-Bottle-Rocket/
We found an article that explains how to build a bottle rocket. The article talks about when and where to place each materials and what materials you will need. It also shows a step by step process with pictures, so it will be easier to build and understand. The article also explains how to add a parachute to keep the egg intact. These things will help us make the best bottle rocket possible by reaching maximum altitude and it will keep the egg from cracking.
We will use the engineering design process to complete our task. As for materials it all depends on what kind of rocket you will be building and the size also depends, so for us since we are building the bottle rocket we have to use a two liter bottle in order for it to fit on the pipe and be able to be launched at least 50ft in the air.
Once started the building process the materials we used started to change. As far as the bottles and fins go that didn't change however for the cup for carrying the egg did. Instead of using a starbucks cup full of cotton balls we changed the material list and did a paper cup full of cotton balls to see if the lighter the better. Some testing to see if the parachute would work did change. We made the string more tighter to make sure it didn't fall.
The Test Reflection
For our first test we did the center of mass. This test measured where our center of mass is. This measurement is important because if our center of mass is too high then the rocket won’t fly straight. Our materials and process for the center of mass test was string tied towards the front until the rocket was balanced. Based on our findings I don’t think we would need to change anything about our rocket for the center of mass. For the center of pressure test or the silhouette test we cut out an outline of the rocket we had built then we tried to balance it on a thin line like the back of our chairs. The results of that test was the center of pressure was in the middle of the rocket. Based on the test results of this test I think the center of pressure is good so we would not need to change anything.
Rocket Link -