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 steepest ramp will require the least amount of time because it will have the greatest velocity for the greatest acceleration
** As slopes increases will time intervals increase, decrease or show no pattern? **
the times wil increase as the slope decreases
** Your report of 5 trials each way for 1 domino **
1.227
1.375
1.547
1.422
1.477
1.929
2.789
1.953
1.726
1.813
on the second trial of the second set my ball didnt start when released. my data was collected as instructed by relaseing ball and clicking the timer program
I am suprised that the second set was slower than the first not sure how that happened.
** Your report of 5 trials each way for 2 dominoes **
i couldnt figure out why we would revese the trail because changing nothing else i would assume the results would be the same.
They would if you were on a level table. From your results it appears you weren't.
It's less trouble to check both directions than to accurately level the table.
1.187
1.234
1.070
.976
1.218
1.054
1.234
2.125
1.359
1.25
my experiment was completed as before with the change of adding another domino to the stack and recording the time intervals that were spplied by the clicking of th timer program
if you will notice that in the second set this time it was trial 3 but the ball again did not start when released.
** Your report of 5 trials each way for 3 dominoes **
.898
.812
.835
.828
.812
.835
.992
.671
1.007
1.054
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
my results support my hypothesis
the times decreased as the slopes increased. my ball rolled faster as my track got steeper
** How do you think ave velocity is related to slope? **
well since the average velocity is the change in position divided by the change in time then that makes perfect since to me. at first glance one might say that it wont affect the slope however, if you think about it as the length isnt changeing only the steepness
but that in effect is changing the time it requires to travel the length so the velocity changes
** Speculate on why ave velocity changes with slope. **
like i said eariler i believe it is the change in time it now requires a shorter amount of time to travel the same length when the track is raised (this is due to gravities pull on mass)
** How could you test your speculations? **
record time intervals at various other points along the track rather than the start and stop points and calculate the velocity.
** **
30mins
** **
i liked this one very much
Good work. See my notes.