Your 'rubber band calibration' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Your initial comment (if any): **
** first line ruler markings, distance in actual cm between ends, how obtained: **
10.0, 17.4.
7.45
I lined the 10.0cm mark with the front end of the first rubber band and measured the length of it. This is number 3 of my rubber bands and I would assume that my measurement is accurate +-.02
** The basis for your uncertainty estimate: **
I am not using a reduce ruler. I know that my measurement is to the half milimeter, but within .02 is a good estimate.
** Positions of the ends of each rubber band, actual lengths of each when the chain supports 1 domino: **
10.0,17.0
10.0, 17.2
10.0, 16.9
10.0, 17.1
10.0, 16.9
End
7.00,7.20,6.90,7.10,6.90
1,2 4,6,5
+-.02
** Distances between ends when supporting 2 dominoes **
7.10,7.30, 7.20, 7.35, 7.50, 7.40
Distances with two dominoes.
** Lengths when supporting 4, 6, ... dominoes: **
7.50, 7.55, 7.60, 7.70, 7.50
4
7.90, 7.80, 7.70, 7.80, 7.70, 7.90
6
8.00, 8.10, 8.00, 8.00, 8.20, 8.10
8
8.30, 8.40, 8.40, 8.20, 8.50, 8.30
10
end
** Your table of force in Newtons vs. length in cm for all rubber bands **
7.00,.7.20,6.90,7.10,6.90,.19N
7.10,7.30, 7.20, 7.35, 7.50, 7.40. 38N
7.50, 7.55, 7.60, 7.70, 7.50, .57N
7.90, 7.80, 7.70, 7.80, 7.70, 7.90, .76N
8.00, 8.10, 8.00, 8.00, 8.20, 8.10, .95N
8.30, 8.40, 8.40, 8.20, 8.50, 8.30, 1.14N
End
Length of rubber bands in cm of 2, 4,6,8, and 10 dominoes, force of gravity.
** Describe the graph of your first rubber band **
Increasing at a decreasing rate.
1)Increasing at a decreasing rate.
2)Increasing at a decreasing rate.
3)Increasing at a increasing rate.
4)Increasing at a increasing rate.
5)Increasing at a decreasing rate.
6)Increasing at a decreasing rate.
** The tension force in your first rubber band at length 9.8 cm: **
1.35N
** The length of your first rubber band when tension is 1.4 N: **
10.2 cm
** The forces at your observed lengths the 1st rubber band, as given by the curve, and the deviations of those curve-predicted lengths from the observed lengths: **
.19N, .8N,.57N,.76N,.95N, 1.14N
** The lengths predicted for forces .19 N, .38 N, .76 N, 1.14 N, etc. by the curve for your first rubber band; the deviations of your actual observations from these predictions: **
7.00,.7.10,7.50, 7.90, 8.30,
** The typical error you estimate when predicting force for a given length from your graphs: **
The values in my table. THey are actual measurements vs. an average curve.
+-.02N
** The typical error you estimate when predicting length for a given force from your graphs: **
+-.02cm
** **
1hour
** **
&#Very good responses. Let me know if you have questions. &#