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
This already exisits on my access page, but I have not previously done the experiment.
I was looking over things on my access page and I got the message cannot find page for every assignment I submitted on 02/05/07, so I can't read them.
Will a steeper ramp give greater or lesser time?
The time required to roll the ball down the steepest ramp will be the shortest.
As slopes increases will time intervals increase, decrease or show no pattern?
The time intervals would decrease if the slopes are written down from least to greatest.
Your report of 5 trials each way for 1 domino
1.156
1.172
1.203
1.219
1.109
1.141
1.031
1.1401
.953
.859
This experiment involved timing how long it takes a ball to roll 28.0 cm down an incline. One domino was set beneath one end of a shelf and the timer was used the find the time interval. These numbers represent the time interval between the release of the ball and the sound of the ball hitting the bracket at the bottom of the incline. The first 5 numbers represent the domino under the right end of the incline, while the last 5 numbers were the time intervals when the domino was under the left end of the ramp.
Your report of 5 trials each way for 2 dominoes
.656
.594
.703
.703
.750
.656
.688
.750
.656
.703
This trial involved timing how long it takes a ball to roll 28.0 cm down an incline when 2 dominos were set beneath one end of a shelf and the timer was used the find the time interval. These numbers represent the time interval between the release of the ball and the sound of the ball hitting the bracket at the bottom of the incline. The first 5 numbers represent the dominos under the right end of the incline, while the last 5 numbers were the time intervals when the dominos was under the left end of the ramp.
Your report of 5 trials each way for 3 dominoes
.46875
.5625
.65625
.59375
.578125
.625
.671875
.640625
.6875
.640625
This trial involved timing how long it takes a ball to roll 28.0 cm down an incline when 3 dominos were set beneath one end of a shelf and the timer was used the find the time interval. These numbers represent the time interval between the release of the ball and the sound of the ball hitting the bracket at the bottom of the incline. The first 5 numbers represent the dominos under the right end of the incline, while the last 5 numbers were the time intervals when the dominos was under the left end of the ramp.
Do your results support or fail to support your hypothesis about increasing or decreasing times?
The average time interval for the slope of 1, 2 and 3 dominos were 1.089, .686, and .613, respectively. These results support the hypothesis that as the slope increases, the time it takes for a ball to roll down the slope will decrease.
How do you think ave velocity is related to slope?
The higher the slope, the greater the velocity. Average velocity depends on the change of position of an object over a set amount of time. Here the distance is constant, but the time it takes for the ball to roll down the slope decreases as the slope increases.
Speculate on why ave velocity changes with slope.
Average velocity depends on the change of position of an object over a set amount of time. Here the distance is constant, but the time it takes for the ball to roll down the slope decreases as the slope increases. The decrease in in slope could be caused by the effects of gravity with the air resistance taken into account.
How could you test your speculations?
You can do the same experiment in an atmosphere with a different gravity and compare the results.
1 hr
Very good data, the report is also very good. Let me know if you have questions.
Your 2/5/07 files apparently didn't upload correctly. I'll put them into today's batch when I upload it. The dates will still read 2/05/07, but the links should work. Let me know if they don't.