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 would think that the time interval would be the least for the ball on the steepest ramp, because, with the ramp of that angle, you would have greater acceleration of the ball
** As slopes increases will time intervals increase, decrease or show no pattern? **
There may be a pattern toward decreasing time intervals.
** Your report of 5 trials each way for 1 domino **
1.375
1.328
1.25
1.375
1.109
1.23
1.263
1.312
1.453
1.266
The first 5 lines represent the time intervals between the initial release of the ball on the right side of the ramp (elevated by one domino) and the point where it struck the bracket. The second set of numbers identifies the same stats, except with the left side of the ramp propped up and the ball rolling in the opposite direction.
** Your report of 5 trials each way for 2 dominoes **
1.047
1.156
1.234
1.188
1.188
1.25
1.266
1.109
1.109
1.125
The first 5 lines represent the time intervals between the initial release of the ball on the right side of the ramp (elevated by two dominoes) and the point where it struck the bracket. The second set of numbers identifies the same stats, except with the left side of the ramp propped up and the ball rolling in the opposite direction.
** Your report of 5 trials each way for 3 dominoes **
.859
.734
.828
.734
.796
.953
.921
.921
.906
.906
The first 5 lines represent the time intervals between the initial release of the ball on the right side of the ramp (elevated by three dominoes) and the point where it struck the bracket. The second set of numbers identifies the same stats, except with the left side of the ramp propped up and the ball rolling in the opposite direction.
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
My hypothesis did turn out to be true; the greater the elevation of the ramp, the smaller the time interval between initial and final point of the ball when it hit the bottom of the ramp.
** How do you think ave velocity is related to slope? **
** Speculate on why ave velocity changes with slope. **
The steeper the angle of the slope, the greater the rate of acceleration (gravity has something to do with this, too)
** How could you test your speculations? **
Test them under controlled conditions
** **
Around 30 minutes, maybe
** **
&#Very good work. Let me know if you have questions. &#