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phy122

Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

** Question Form_labelMessages **

???Error analysis I and II????

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B4 Physics Intro Assignment

Error Analysis I

Error Analysis II Data Program

B4

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Proffessor Smith,

Your comments in the Error Analysis assignment said that I entered the clock time and didn't enter the interval time. Conversely, I did enter the interval time. I even went back and did it over once again to make sure I was entering the right column. Below I will enter the information from my pendulum assignment again showing you that I entered the right column in each assignment. As you can see these are the same interval times.

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1 10588.42 10588.42

2 10589.29 .8671875

3 10590.07 .78125

4 10591.14 1.070313

5 10592.03 .890625

6 10592.98 .9492188

7 10594.02 1.039063

8 10594.89 .8710938

9 10595.9 1.011719

10 10596.9 1

11 10597.79 .8867188

12 10598.74 .953125

13 10599.71 .9765625

14 10600.55 .8320313

15 10601.38 .828125

16 10602.52 1.140625

17 10603.33 .8125

18 10604.31 .9804688

19 10605.23 .9179688

20 10606.12 .890625

21 10607.04 .9179688

22 10608.04 1

23 10609.03 .9921875

24 10609.87 .8398438

25 10610.81 .9414063

26 10611.83 1.019531

27 10612.85 1.019531

28 10613.74 .890625

29 10614.7 .9570313

30 10615.54 .8398438

and here is the data i used for the error analysis part II

10588.42

.8671875

.78125

1.070313

.890625

.9492188

1.039063

.8710938

1.011719

1

.8867188

.953125

.9765625

.8320313

.828125

1.140625

.8125

.9804688

.9179688

.890625

.9179688

1

.9921875

.8398438

.9414063

1.019531

1.019531

.890625

.9570313

.8398438

So do you want me to complete the pendulum assignment again, because something is just not working out.

@&

I see what happened. I didn't look carefully enough at your data.

The problem on the Error Analysis was that you included a 10 588 second interval (that's about 3 hours) among your time intervals. The time intervals clearly averaged around a second or a little less.

The same thing occurred on the pendulum experiment, where you included a long interval (maybe 300 seconds or so).

So it appears that the problem isn't that you're using clock times. Rather it's that you are including an interval that doesn't correspond to what is being measured, and this leads to erroneous results.

You don't need to redo the pendulum experiment, but you should correct the Error Analysis experiment to be sure you understand. This shouldn't be too difficult and with the data analysis program available, it shouldn't take too long.

*@