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? **
the time required to roll the length of the ramp will be the least for the steepest ramp.
** As slopes increases will time intervals increase, decrease or show no pattern? **
no clear pattern since the slopes are different
** Your report of 5 trials each way for 1 domino **
1.313
1.641
1.328
1.485
1.203
1.266
1.531
1.641
1.672
1.437
This data is the different time intervals of the time it took from the ball being released at reast to the time it stopped. I collected this by timing from the start to the finish, then taking the final - inital time to receive the correct time it took to roll down the slope.
** Your report of 5 trials each way for 2 dominoes **
During the process I was cautious of making sure that I had the ball centered correctly and letting go quickly but carefully. During the performace, I wanted to make sure that I had the correct timing and that I was clicking accuractely enough.
.968
.766
.875
.781
.937
.937
.922
.859
.891
.781
My data is the different time intervals of the time it took from the ball being released at rest to the time it stopped at the bracket. I simply clicked start when I removed the dominoe to let the ball start moving and then I clicked end when the ball hit the bracket.
** Your report of 5 trials each way for 3 dominoes **
.328
.612
.546
.593
.549
.609
.687
.641
.484
.359
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
My results failed my hypothesis because I stated that there would be no clear pattern, but in fact the time intervals decrease the higher the slope.
** How do you think ave velocity is related to slope? **
The average velocity of the ball would be increasing as the slope increases, the higher the slope, the quicker the times were, causing the average velocity to increase with an increasing slope.
** Speculate on why ave velocity changes with slope. **
The height of the board is what causes the average velocity to change with the slope.
** How could you test your speculations? **
The higher the board became, the time intervals were decreasing, becoming quicker verifing an increasing average velocity and slope.
** **
1 hour
** **
Were these times for the foot-long ramp supported on one end by 1, 2 and 3 dominoes? While some inaccuracy in timing is common, these times do not appear to correspond to the system, if the system is set up according to instructions.
Can you describe how you set up the system and how you conducted the timing?