Phy 231
Your 'ball down ramp' 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 general comment **
** Will a steeper ramp give greater or lesser time? **
Greatest on the steepest slope
** As slopes increases will time intervals increase, decrease or show no pattern? **
decreasing
** Your report of 5 trials each way for 1 domino **
1.289
12.03
1.313
1.242
1.289
2.469
2.461
2.617
2.555
2.656
The first five numbers I collected represent the time elapsed when the ball rolled from left to right, and the second group of five numbers represent the time elapsed when it rolled right to left. The data was fairly consistent within each group, but the groups are significantly different due to variances in the surface the ramp was placed upon.
** Your report of 5 trials each way for 2 dominoes **
1.023
.930
.922
1.055
.953
1.305
1.281
1.320
1.367
The data was collected in the same manners as before with the exception that the slope varied due to have it raised by the height of two dominoes. I have noticed the same discrepancy with the set caused by a difference of the platform I have the ramp on causing the two groups to vary.
** Your report of 5 trials each way for 3 dominoes **
.820
.797
.813
.805
.828
.938
1.086
.953
1.016
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
No they do not fail; in fact, the was noticable proof of my theory in these trials. The time interval did decrease with the increase in slope.
** How do you think ave velocity is related to slope? **
I think that the average velocity is directly proportional to the slope of the ramp.
** Speculate on why ave velocity changes with slope. **
The average velocity increases with the increase in slope because the fractional force of gravity that acts upon the ball increase with the increasing slope.
** How could you test your speculations? **
By relating the angle of the slope with the average time elapsed with the gravitational constant. As the slope's angle increase to 90 degree, then the percentage of gravity felt will rapidly increase until the ball roll/falls at the rate caused by uninterrupted gravitational pull.
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52 minutes
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&#Your work looks very good. Let me know if you have any questions. &#