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 steepest will be the shortest amount of time.
** As slopes increases will time intervals increase, decrease or show no pattern? **
there will be a pattern:
steepest-shortest
med-med
flatest-slowest
** Your report of 5 trials each way for 1 domino **
1.700
1.477
1.700
1.434
1.480
1.430
1.590
1.602
1.813
1.590
That data represents the time in seconds it took for the ball to travel approx 30 cm down a path elevated by 1 domino.
** Your report of 5 trials each way for 2 dominoes **
I was thinking that if we raised the incline then the time it would take the ball to travel down the path would be inversly proportional.
1.152
1.102
0.988
1.160
1.039
1.098
1.320
1.258
1.098
1.148
That data represented here was collected in the same fashion as the previous trial. I found the times here were quicker then the initial trial, that is because of the increase in steepness.
** Your report of 5 trials each way for 3 dominoes **
0.871
0.992
0.988
0.930
0.933
0.820
1.034
0.992
0.882
0.941
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
Yes it does, because the steepness is going to effect instantanous acceleartion. The more steep something is, the more it resembles a free fall (9.8 m/s). Thus the closer an incline is to a free fall, the faster an object will travel.
** How do you think ave velocity is related to slope? **
the avg velocity of the ball is going to be related to the slope of the ramp in large part what I said in the previous box. The slope is going to effect the rate the ball travels because gravity is pulling down on the ball. How much gravity pulls down is directly related to the steepness of the slope.
** Speculate on why ave velocity changes with slope. **
the avg velocity of these ramps will change with slope, because as the steepness increases gravity's pull becomes stronger and stronger.
** How could you test your speculations? **
place a ball on a ramp that is only slightly elevated, then compare its duration to a ball who is on a ramp that is almost completely vertical.
** **
45 mins.
** **
&#Your work looks ver good. Let me know if you have any questions. &#