1. Should the rocket be light or heavy?
2.What is the best amount of water in the rocket?
3. How much work must be done on the rocket to make it go 30 meters?
4. How fast does the rocket take off when pin is pulled?
5. Does the height of the rocket determined on how far it will go?
6. What type of energy takes place when launching a rocket?
7. Will weather affect the outcome of the rockets flight?
8. What things can be done to keep the egg alive?
9. Will a lot water in the rocket make the rocket go farther?
10. Where is the best place to put the egg if it is to survive?
11. What materials can be used to help lessen the chance of cracking your egg?
12. What actions of the rocket make up its work that is done?
13. Was it difficult to build a rocket out of soda bottles?
14. Once the rocket reaches its highest point, what is taking place to make it come down?
15. What is the maximum velocity a rocket made out of bottles can reach?
16. Is there a better substance than water that could make the rocket go farther?
17. How did people determined the amount of water and the angle at which to launch at?
18. What Newton law does this rocket launch demonstrate?
19. What could have gone wrong during the rocket launch?
20. How does this rocket launch relate to physics?
2. Making of my Rocket:
-The first thing that we did to make our rocket was get two 2-liter soda bottles. Next, we took one of the bottles and cut the bottom out so it would fit snug onto the other bottle. The reason we did this was because this was where we were going to place our safe egg and we wanted to extend the rockets body.
- After we did that, we went and got a cardboard box to make the fins for our rocket. We used cardboard because it is a semi strong material that is very light and perfect for the rocket. we took a black marker and marked the size of all three fins.
-Once we had our fins cut out, we marked on the bottle where we would even put the fins. Next we took colored duck tape and strongly taped the fins onto the uncut bottle. We put many layers of tape to make sure the cardboard wasn't flimsy and wouldn't come off when launched.
-With the fins on, we were then ready to start protecting our egg. How we protected our egg was very simple. We took a jar of peanut butter and made a hole in the butter perfect size of our egg. We then placed a couple cotton balls in it as extra protection. After that we slowly pushed the egg into the peanut butter until it was perfectly in the middle. More peanut butter was then placed on top of the egg and then the jar was sealed.
-The jar was then placed into the second 2-litter bottle we had that had the bottom cut out of it. Surrounding the jar we put cotton balls as more protection for our egg until the jar was cover from bottom to top and all around with cotton balls. We then placed that bottle onto the first bottle with the fins on it and duck taped it tightly. This would ensure the second bottle not flying off at launch.
- And that is how we made our rocket.
3. Physics of my rocket:
The way we designed our rocket, we had a very heavy top of the rocket and a lighter bottom. This was because the bottom would be filled with water and pressure causing it to some what balance the weight in the top. 1.The physics of our rocket started in the very beginning at the Pre launch. At the pre launch, the person doing the pumping was putting work on the pump, which then made the air do work into the rocket. This is where the rocket was at 100 percent potential energy and zero kinetic. This was because the rocket was not moving what-so-ever. 2. Once the pin was pulled and Water went Everywhere, the work that had been done on the rocket caused it to project the rocket into the air. The amount of force of the water and air coming out of the rocket was the same as the amount of force of the rocket flying forward. This is know through Newtons Laws. Also the potential energy starts to decrease and the kinetic energy starts to increase. 3. As the rocket becomes Out of Fuel, its potential and kinetic energy equal the same. In addition the rocket has gravity take over and it free falls back to the ground. 4. As the rocket Touchesdown, its potential energy goes back to 100 percent while its kinetic ends up at zero again. The egg inside the jar of peanut butter also feels the force of the collision with the ground but because the peanut butter is soft and durable its slows down the time of the collision. The cotton balls around the jar do the same exact thing by slowing down the collision. With a longer collision, meaning more time, it makes the power of the rocket's collision less and there for saving our egg. This is because the rocket had lessened the force of the collision by elongating the time it was hitting the ground.
4. Egg Protection Plan (EPP)
With my rocket there were many things we did to make sure that it would survive. The first thing we did to protect our egg was we took a jar of peanut butter and made a hole in the peanut butter. It was then filled with small cotton balls. Next, we took the egg and slowly pushed it into the jar of peanut butter right in the middle of the jar. Then, we added more peanut butter on top of the egg to make sure it was surrounded with the soft creamy peanut butter. Once we sealed the cap we then put the jar into the empty second bottle that was attached to our rocket. After that we took more cotton balls and placed them around the jar and around the insides of the bottle. We did this until the jar was surrounded by cotton balls and was perfectly suck in the middle of the bottle touching nothing but cotton. The reason we used these materials were because we wanted something soft for the egg to be resting on. The egg being inside the peanut butter made the time of the impact for the egg longer, taking away much of the impacts force which lowers the eggs impulse. With less force and not a lot of distance for the egg to move, it put very little work on our egg. The cotton surrounding the jar was another layer that added time to the impact and in turn caused less force. With minimal force on our egg, the small pressure on the shell, and its momentum changed causing the impulse to be small and overall keeping our egg alive.
5. Results:
How far did it go? .......................................... 47 meters
Did our egg break?.......................................... No
What did did we launch at?.............................. 43 Degrees
How much water did we use?.......................... 725 ML
We used this angle because we wanted our rocket to make it out to the 30 meter mark, yet have a little bit of an aerial flight. This was it would produce a good arch of flight that wasn't too high or too low. We used that much water to balance out the weight in the top of our rocket, but not too much to where our rocket wouldnt take off.
Things that went right were that it made it past the 30 meter mark and our egg survived. Things that went wrong was our rocket didn't go very far and it was hard to get the egg out of the peanut butter.
6. What did I Learn?
I learned that physics is a major part of launching rockets and not just all fun and games. There are many ways to save your egg using different physics ideas and almost every part of physics was demonstrated in our launches. Not everyone's ideas were the same yet through the physics in the launches, many were successful in accomplishing what they wanted. Overall, launching rockets was a fun and exciting way to learn about the ideas and laws of physics.
James Myers Per.3
