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 the time will be the least for the steepest ramp.
** As slopes increases will time intervals increase, decrease or show no pattern? **
I would expect the time intervals to decrease.
** Your report of 5 trials each way for 1 domino **
1.933
1.914
1.910
1.891
1.943
1.624
1.737
1.679
1.663
1.665
I collected my data by being as accurate as I can when using hte timer and matching that to the exact release and hit of the ball. The second set of data is a much shorter time than the first. However, when I set the ramp on the table with nothing under it and placed the ball on it, the ball rolled to the right. Therefore, it was expected that the ball would roll faster when the domino was placed under the left side because it already had a small incline to begin with.
** Your report of 5 trials each way for 2 dominoes **
1.215
1.194
1.141
1.172
1.172
1.152
1.094
1.070
1.121
1.078
The times are decreasing as the slope is increasing. I collected my data the same way as before, trying to be as accurate as possible.
** Your report of 5 trials each way for 3 dominoes **
.902
.929
.871
.911
.931
.929
.832
.941
.914
.941
The data is still decreasing as slope increases.
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
My results supported that the time intervals would decrease as the slope increase. It is very obvious that my results reveal the least amount of seconds for the three dominoes as compared to the one domino.
** How do you think ave velocity is related to slope? **
The average velocity is going to be higher when the slope of the ramp is higher. This is because the seconds are decreasing and the distance is saying the same which will yield a higher velocity.
** Speculate on why ave velocity changes with slope. **
The average velocity will change with the slope because as you increase slope the time interval decreases which will give you a higher average velocity.
** How could you test your speculations? **
You could calculate the average velocities for each of the different slopes and you would see that the average velocity would be the highest for the slope with 3 dominoes.
** **
1/2 an hour
** **
&#Your work looks ver good. Let me know if you have any questions. &#