Your work on rubber band calibration has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
I noticed the difference in lengths among all my rubber bands stayed pretty close together throughout the experiment. I only had 10 dominoes, so could not go up to 12. My graphs look very similar since values were pretty close. Should there have been more force exerted on the first and possibly last rubber band then I saw demonstrated here? I used the large paper clips b/c the smaller ones were breaking when I attempted to convert them into hooks. I also had the first rubber band hanging from a paper clip, was it supposed to hang on its own, then followed by the chain? If this is the case, I will need to repeat this exercise.
1.0,8.7
7.70
I subtracted the end mark (8.7) from the beginning mark (1.0). This indicates the length of the rubber band stretched by one domino. This rubber band is marked 1. I feel the measurement is accurate between +-.05 cm.
The measuring tool has millimeters as the smallest measurement, hence .05cm lies between each millimeter mark. I pinned a seamstress measurement tape to the wall, and overlaid my chain on top of it so the measuring device did not move.
1.0,8.7
16.9, 24.65
32.5,40.2
48.35,55.95
63.9,71.6
End
7.70,7.75,7.70,7.60,7.70
1,2,3,4,5
+-.05
7.95,7.80,7.75,7.70,7.90
2 dominoes
8.30,8.30,8.20,8.20,8.30
4
8.60,8.50,8.60,8.55,8.55
6
9.00,9.05,8.95,9.05,9.00
8
9.50,9.50,9.45,9.45,9.50
10
7.70,7.75,7.70,7.60,7.70,.19
7.95,7.80,7.75,7.70,7.90,.38
8.30,8.30,8.20,8.20,8.30,.76
8.60,8.50,8.60,8.55,8.55,1.14
9.00,9.05,8.95,9.05,9.00,1.52
9.50,9.50,9.45,9.45,9.50,1.9
End
The first five columns represent the length of the rubberbands measured in cm. First column is rubber band 1, then 2, etc. the last column represents the force exerted on the dominoe(s) measured in Newtons.
increasing at an increasing rate
increasing at an increasing rate
increasing at an increasing rate
increasing at an increasing rate
increasing at an increasing rate
increasing at an increasing rate
End
The lengths did not vary by more that .05 among all the rubber bands with the various dominoes. Would the size of the paper clip have affected this?
1.9 F
9.0 cm
.25,.5,.75,1.25,1.5,1.75
.06,.12,.01,.11,.02,.15
7.75,8.0,8.25,8.75,9.0,9.5
.02,.05,.05,.15,0.0,0.0
At this point, I'd have more faith in the values I reported since they are very close to what the curve estimates. I feel these must be somewhat consistent.
+-.15N
This was the largest variance between the estimate using the curve and the actual numbers.
+-.15cm
This was the largest variance between the estimate using the curve and the actual numbers.
Your work on this experiment will be compiled and you will receive a more extensive analysis and a reply after the due date. I've looked thru your data and everything appears to be good.