[this is school]

Today Emma M., Honore, and I all did the Impact Craters lab. We had to drop a golf ball from 5 different heights (we did 6) and measured the depth and width of the craters. We found that 4.5 (for the width) and 2 (for the depth) centimeters was constant in all but a few where 1 (for the depth) and 3.5 (for the width) centimeters was constant. Next, we had to calculate the GPE. The way we have to calculate the GPE is GPE=MGH we had the G and the H but we needed the M to be able to find the GPE. So, we took the golf ball to the scale and found that it weighed 45.8 grams. We know that mass is measured in kilograms so we needed to divide 45.8 by 1000. 45.8/100=.0458. Using this, we calculated the GPE of each of the heights. These were the calculations: from 36inch=.41J. 30inch=.34J. 24inch=.27J. 18inch=.21J 12inch=.12J 6inch=.07J. Next we had to calculate the velocity by using GPE=KE when KE=1/2(M) (V)2. For these calculations we got the velocity for: 36inch=.62m/s 30inch=.6m/s 24inch=.5m/s 18inch=.4m/s 12inch=.3m/s 6inch=.2m/s.
Thats all for today!

Labels: M2M