Wednesday, December 17, 2014

Fling Machine Reflection

Data Recorded: 15', 18', 20', 20', 22', 16', 18', 19', 21'


It is pretty well distributed with 18, 19, 20 feet in the middle.

Mean: 18.8'
Median: 19'
Range: 7
Sample Standard Deviation: 2.1499

I predict that most of the cotton balls will launch between 18-20 ft based on the data we received from the tests we tried.

It won't be improved with the performance of alternate device comparison because the original data will still be the same.

I actually prefer giving points for distance traveled since we were 2nd farthest, but if I was to recommend, I would recommend finding the average of the test launches for points, and originality.

I would have made our plane more dense and smaller, and made it easier to fly. I thought throwing the entire device all together was bending the rules too much.

We only used aluminum foil and cotton balls, so the only reduction would be in size.

To improve our team, I could try to use some of my partner's idea if they were any good.




Wednesday, December 10, 2014

Unit Conversions

In this project, we made a presentation about accuracy and precision, US and SI units, Dimensional Analysis, Significant Figures, and Rules of Exponents. The link to the presentation is here. We accidentally skipped the slide which showed accuracy and precision.Lnsfrnu.gif

From this project, all the unit conversions seemed to be a little more exciting, but it is still going to be boring as ever, because it is long and no fun.