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: **
0.0, 8.81
8.81cm
8.81-0.0=8.81cm, #1, .05
** The basis for your uncertainty estimate: **
The smallest measurement is .1cm
** Positions of the ends of each rubber band, actual lengths of each when the chain supports 1 domino: **
0.0, 8.81
0.0, 9.32
0.0, 8.95
0.0, 9.10
0.0, 8.63
0.0, 8.60
End
8.81, 9.32, 8.95, 9.10, 8.63, 8.60,
1,2,3,4,5,6
** Distances between ends when supporting 2 dominoes **
9.10, 9.50, 9.25, 9.55, 8.85, 8.95
result of 2 dominoes
** Lengths when supporting 4, 6, ... dominoes: **
9.31, 10.00, 9.55, 9.71, 9.15, 9.01
4
9.75, 10.30, 9.85, 10.05, 9.45, 9.40
6
10.05, 10.75, 10.35, 10.40, 9.85, 10.00
8
10.45, 11.20, 10.20, 10.95, 10.20, 10.25
10
** Your table of force in Newtons vs. length in cm for all rubber bands **
8.81, 9.32, 8.95, 9.10, 8.63, 8.60, .19N
9.40, 9.50, 9.25, 9.55, 8.85, 8.95, .38N
9.31, 10.00, 9.55, 9.71, 9.15, 9.01, .76N
9.75, 10.30, 9.85, 10.05, 9.45, 9.40, 1.14N
10.05, 10.75, 10.35, 10.40, 9.85, 10.00, 1.52N
10.45, 11.20, 10.20, 10.90, 10.20, 10.25, 1.9N
end
** Describe the graph of your first rubber band **
Increases at an increasing rate throughout
Increases at an increasing rate throughout
Increases at an increasing rate throughout
Increases at an increasing rate
Increases at an increasing rate
Increases at an increasing rate
End
** The tension force in your first rubber band at length 9.8 cm: **
1.2 N
** The length of your first rubber band when tension is 1.4 N: **
9.95cm
** 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: **
.25, .45, .60, 1.15, 1.47, 2.25
.06, .07, .16, .01, .05, .35
** 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: **
8.80, 9.105, 9.455, 9.250, 10.05, 10.375
.01, .05, .145, 0, 0, .075
** The typical error you estimate when predicting force for a given length from your graphs: **
The table would seem most accurate because it is actual data recorded. The uncertainty of force is +/- .12N. This is the average of the differences between the table and the best fit curve.
** The typical error you estimate when predicting length for a given force from your graphs: **
The table because it was the actual data recorded. The uncertainty of length would be +/- .05cm This is the average of the difference between the recorded data and the best fit curve.
** **
Allowing for my busy work schedule, it took me 3 days (about 5 hours).
** **
Good work.