We had to make and design bottle rockets in our class. While creating the rocket we had to think about the forces that will act on the rocket. The forces that will act on the rocket would be, air resistance, gravity and drag. Air resistance was a big thing in the experiment the reasoning is because without the rocket being aerodynamic the rocket wouldn’t be able to travel as far. My goal was to make the rocket as aerodynamic as possible so it would reach long distances.
The plan was to get cardboard in order to help make the rocket aerodynamic. With the cardboard we cut out 8 peices of wings for the rocket and we also made a very air resistance nose for the rocket. With these designs our rocket were able to achieve the second to last greatest rocket with the distance of 4.2 meters, the time in the air being 0.99 seconds and the speed being 4.16ms-1.
We recorded these results by having 10 people with 10 stopwatches recording our rockets. There was also a big long tape measure, measuring the distances of the rockets. To get the time average we need to add all the data we got and divide it by 10 giving us the time of 0.99 seconds. To get the speed we need to times our distance (4.2) by our time (0.99), that leaves us with the total of 4.16ms-1.
As a result, our rocket did really bad because the nose was extremly heavy and the rocket itself had a really rough texture which doesn’t help keeping it air resistent. Next time we can work on our design keeping it light so gravity won’t pull it towards the centre of Earth as fast whilst also not making it too light otherwise it isn’t going to travel as far.