Phy 121
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 **
i seem to be missing some of the lab materials, for this experiment i have only 1 piece of shelf track which is only 15cm long not 30cm
** Will a steeper ramp give greater or lesser time? **
the time will be least for the greatest slope
** As slopes increases will time intervals increase, decrease or show no pattern? **
the time intervals be will decreasing
** Your report of 5 trials each way for 1 domino **
.797
.789
.734
.750
.813
.805
.734
.813
.758
.719
this is the time interval for the ball rolling down the ramp with a 1 domino slope, data collected by timing ball rolling down ramp
** Your report of 5 trials each way for 2 dominoes **
.445
.516
.516
.523
.453
.461
.453
.469
.516
.523
this is the time interval for the ball rolling down the ramp with a 2 domino slope, data collected by timing a ball rolling down a ramp
** Your report of 5 trials each way for 3 dominoes **
.328
.336
.320
.351
.336
.335
.383
.344
.375
.391
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
the results support my initial hypothesis that the time interval decreases as the ramp slope increases, the time interval was smaller with each domino that was added for slope
** How do you think ave velocity is related to slope? **
the average velocity of the ball increases as the slope increases
** Speculate on why ave velocity changes with slope. **
the time interval for the same displacement decreases with the slope of the ramp
** How could you test your speculations? **
calculate the average velocity of the ball at each given slope which would varify the above assumptions
** **
1 hour 15 min
** **
You have good results.
In the process of rearranging the beginning of the course I overlooked the fact that the 30-cm ramp is not sent as part of the initial materials packet.
This experiment might be moved to a later assignment; if so, since you've already done it, you can skip it at that time.
The data from this experiment are analyzed in a future assignment, and you should do that analysis based on the data you have acquired here.