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? **
The steeper the ramp the faster the ball will roll
** As slopes increases will time intervals increase, decrease or show no pattern? **
Increasing
** Your report of 5 trials each way for 1 domino **
1.482
1.503
1.521
1.514
1.501
1.670
1.643
1.621
1.643
1.651
The previous lines 1-5 show the data for my experiment with the ball rolling from right to left the next five lines are from left to right. I was thinking that there is a slight difference in the slope of my table from one direction to the other.
** Your report of 5 trials each way for 2 dominoes **
.953
.968
.944
.951
.969
1.03
1.031
1.024
1.003
1.021
The numbers presented in the first 5 lines are from right to left and those in the next five lines are from left to right once again there is a difference present from left to right to right to left.
** Your report of 5 trials each way for 3 dominoes **
.824
.843
.801
.828
.821
.921
.901
.953
.969
.906
The numbers present in the first five lines are from right to left and the second is the numbers from left to right. Once again the numbers vary because of the difference in slope between the right and left.
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
The results support my hypothesis that the more inclined the rail is the faster the ball travels down the incline. This is shown by the decrease in time from the beginning of the experiment being over 1 second and the final run being under one second.
** How do you think ave velocity is related to slope? **
The greater the slope of the ramp the higher avg. velocity the experiment is going to have. We have an overall distance of 27.5 centimeters and with each experiment we have a different time interval present. When we take our 10 runs with 1 domino average we get 1.41 and that gives us an average velocity of 19.5cm/s and when we take the average of our 10 runs with 3 dominos avg. we get .872 so if we take 27.5 cm divide that by .872 we get an average velocity of 31.5cm/s. That shows that the higher the incline the higher the avg. velocity.
** Speculate on why ave velocity changes with slope. **
The acceleration increases.
** How could you test your speculations? **
Take the total change in velocity and divide it by the time interval and that will show that there is a greater acceleration with a greater slope.
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one hour
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&#Your work looks very good. Let me know if you have any questions. &#