Phy 201
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: **
5,12.4
7.4cm
I got the no. in second line by subtracting 2nd number from 1st number.This no signifies the length of the rubber band.My measurement is pretty accurate.Actual measurement to be .01 greater,if at all.
** The basis for your uncertainty estimate: **
The scale was marked in .01cm increments.So uncertainty can be .01 .
** Positions of the ends of each rubber band, actual lengths of each when the chain supports 1 domino: **
12.5 5,11.2 4,16 9,24.1 17,21.2 14, 25.1 18
End
7.4cm,7.2.7,7.1,7.2,7.1cm
uncertainty-.01cm
** Distances between ends when supporting 2 dominoes **
7.7,7.8,7.0,7.3,7.6,7.3 cm
These results were from weight of two dominos.
** Lengths when supporting 4, 6, ... dominoes: **
8.0,7.9,7.8,7.5,7.8,7.4
4
8.2,8.0,8.0,7.8,7.9,7.8
6
8.5,8.3,8.2,8,8.1,7.9
8
8.8,8.4,8.5,8,8.4,8.2
9
End
** Your table of force in Newtons vs. length in cm for all rubber bands **
7.4,7.2,7.0,7.1,7.2,7.1, .19
7.7,7.8,7.0,7.3,7.6,7.3, .38
8.0,7.9,7.8,7.5,7.8,7.4, .76
8.2,8.0,8.0,7.8,7.9,7.8, 1.14
8.5,8.3,8.2,8,8.1,7.9, 1.52
8.8,8.4,8.5,8.0,8.4,8.2, 1.71
** Describe the graph of your first rubber band **
Increasing at an increasing rate throughout
Increasing at an increasing rate
Increasing but at a slower rate
increasing at an increasing rate
Increasing at an increasing rate
End
** The tension force in your first rubber band at length 9.8 cm: **
2.2cm
** The length of your first rubber band when tension is 1.4 N: **
8.2cm
** 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: **
Did not understand the question.
** 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: **
7.3,7.7,8.1,8.2
.1,0,.1,0
** The typical error you estimate when predicting force for a given length from your graphs: **
I have more faith on the values that i reported in my table.
** The typical error you estimate when predicting length for a given force from your graphs: **
** **
1hr 10 minutes
** **
&#This looks good. Let me know if you have any questions. &#