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? **
I think that the time will be shorter for a steeper slope.
** As slopes increases will time intervals increase, decrease or show no pattern? **
You would expect that the time intervals will decrease as the slopes get greater.
** Your report of 5 trials each way for 1 domino **
From the right:
2.531
2.109
1.875
2.391
2.109
From the left:
2.953
2.891
2.484
2.859
2.813
The first five numbers are indicative of the time intervals from the slope with a domino under the right side of the ramp. The next five numbers are the same sort of measurement of time intervals but have the domino under the left side of the ramp. The times are different from the right and left data, hence, I postulate that the desktop is not perfectly level.
** Your report of 5 trials each way for 2 dominoes **
I was thinking that the table must not be level because the time intervals were a bit different from right to left.
From the right:
1.828
2
1.688
1.578
1.266
From the left:
2.328125
1.890625
2.109375
2.171875
1.9375
The data here means that the times were faster when a second dominoe was used to make the slope steeper. It was collected by using a timer to find the time intervals when a second dominoe was placed under the right and left side ramps.
** Your report of 5 trials each way for 3 dominoes **
From right side:
1.515625
1.515625
1.515625
1.390625
1.546875
From left side:
1.71875
1.8125
1.71875
1.53125
1.375
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
Yes, my hypothesis fails. This is because the ramps' times changed from right to left. I though initially that the times would be the same respective to the amount of dominoes on each side, but found that the right side tended to be faster than the left side. I think that this is likely because of a off-kilter level in the table.
** How do you think ave velocity is related to slope? **
I believe the average velocity of the ball is proportional to the increase in the slope of the ramp. As the slope increases, the average velocity is going to increase.
** Speculate on why ave velocity changes with slope. **
The vertical vector is changing as the slope increases; it increase, or pulls more on the ball, as the slope increases.
** How could you test your speculations? **
I could verify by doing more trials and using the book as a reference for some of the principles of physics that would apply here.
** **
It took about 30 minutes to do this experiment.
** **
&#Good responses. Let me know if you have questions. &#