Sejin+P14

Sejin P. 2013-2014
 * THE LENGTH THE ROCKET GOES DEPENDING ON WHAT GAS IS IN THE BULB **


 * ABSTRACT **

The purpose for the first experiment was the difference between the distances of a squeeze rocket launched when carbon dioxide was in the bulb and just air that humans usually breathe. It was hypothesized that when the carbon dioxide was put into the bulb and was squeezed, the squeeze rocket would go further than when the normal air people breathe was put into the bulb. A bulb was pumped in carbon dioxide. Then a rocket was put on top of it. Then the bulb was squeezed and then the length the rocket traveled was measured. This was three times and then the average of how far the rocket went was calculated. This is done again with normal air instead of carbon dioxide. When air was put in the bulb, it went 285 centimeters. When the bulb was filled with carbon dioxide, it went 216.6 cm. The second experiment was the difference between the distances of a squeeze rocket launched when was in the bulb and just air that humans usually breathe. When smoke was put inside the bulb, the rocket went 247.3 centimeters and when just air was put in the bulb, the rocket went 285 centimeters.


 * EXPERIMENTAL IMPROVEMENTS AND FUTURE EXPERIMENTS **

The experiment could have been improved by dropping a book on it to control more of the force and speed of something pressed on to the book. I could have also controlled the air temperature more. I could see if hot air and cold air differ when shooting a squeeze rocket. It could be tested if water and air in the bulb make a difference in the length or even a combination of two things like a liquid and a gas put together. One experiment could be about changing the atmosphere around the bulb and see how it affect the distance the rocket goes. As it could be seen, the first experiment can be linked to other thing that can be experimented with.

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