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 will decrease as the slope increases.
As slopes increases will time intervals increase, decrease or show no pattern?
The time intervals should decrease.
Your report of 5 trials each way for 1 domino
2.438
2.484
2.297
2.109
2.578
1.75
1.719
1.625
1.703
1.641
I got this data by starting and stopping the TIMER when I pulled back the domino and timed when the ball sopped rolling. Because the times were shorter when I reversed the system, it suggests that the surface was not exactly even.
Your report of 5 trials each way for 2 dominoes
1.125
1.281
1.281
1.047
1.234
1.391
1.531
1.469
1.406
1.422
I stacked 2 dominoes on the raised end instead of 1 and timed the ball as it rolled.
Your report of 5 trials each way for 3 dominoes
1.156
1.062
1.078
1.078
1.063
1.015
1
.922
1
1.016
Do your results support or fail to support your hypothesis about increasing or decreasing times?
The results support my hypothesis because as the slope increased when one end was raised, the times needed decreased.
How do you think ave velocity is related to slope?
I think that the average velocity increases as the slope of the ramp is increased, because the displacement is the same for each slope, but the time decreases as the slope increases.
Speculate on why ave velocity changes with slope.
The increasingly raised end of the ramp.
How could you test your speculations?
By dividing the displacement 28.35 cm by each of the time intervals.
about 45 minutes.
Good report, with good data and good answers to the questions.