Phy 201
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 think that the time required to roll the length of the steepest ramp will be the least.
** As slopes increases will time intervals increase, decrease or show no pattern? **
I think the time intervals will decrease as the slope increases.
** Your report of 5 trials each way for 1 domino **
1.469
1.500
1.625
1.734
1.578
1.609
1.734
1.719
1.719
1.672
The above data are the time required for a ball to roll down a ramp with a single domino providing the slope of the ramp. The first 5 data points represent the first five trials which were conducted starting at the right end of the ramp. The second 5 data points represent the second five trials which were conducted starting at the left end of the ramp. I think it took about the same amount of time to roll in either direction.
** Your report of 5 trials each way for 2 dominoes **
1.266
1.359
1.250
1.203
1.375
1.484
1.359
1.203
1.469
1.313
The above data are the time required for a ball to roll down a ramp with 2 dominoes providing the slope of the ramp. The first 5 data points represent the first five trials which were conducted starting at the right end of the ramp. The second 5 data points represent the second five trials which were conducted starting at the left end of the ramp. I think it took about the same amount of time to roll in either direction.
** Your report of 5 trials each way for 3 dominoes **
1.047
0.938
1.016
0.938
1.000
1.094
0.938
1.219
1.094
0.934
The above data are the time required for a ball to roll down a ramp with 3 dominoes providing the slope of the ramp. The first 5 data points represent the first five trials which were conducted starting at the right end of the ramp. The second 5 data points represent the second five trials which were conducted starting at the left end of the ramp. I think it took about the same amount of time to roll in either direction.
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
My results support my hypothesis that time intervals decrease with increasing slope.
** How do you think ave velocity is related to slope? **
I think the average velocity increases as the slope of the ramp increases because the time decreases with increasing slope over the same distance. Since v=ds/dt then the velocity increases as slope increases.
** Speculate on why ave velocity changes with slope. **
Gravity has more pull on the object as the slope gets steeper which causes the velocity to increase.
** How could you test your speculations? **
Time the ball on the ramp with the ramp at a variety of slopes from flat (no slope) to the steepest possible slope.
** **
2 hours
** **
&#Your work looks very good. Let me know if you have any questions. &#