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? **
If a ball were to roll down the steepest of the 3 ramps, I believe that the time interval will be the least of the 3.
** As slopes increases will time intervals increase, decrease or show no pattern? **
If the slopes were ranked in steepness from least to greatest, I would expect the time intervals to be decreasing with steepness.
** Your report of 5 trials each way for 1 domino **
The following time intervals were collected from the time it took a ball to free roll 30cm down a ramp tilted up by one domino.
With the Domino on the right side:
.953, .906, 1.023, .997, 1.117
With the domino on the left side:
1.320, 1.281, 1.339, 1.203, 1.320
** Your report of 5 trials each way for 2 dominoes **
The following time intervals were collected from the time it took a ball to free roll 30cm down a ramp tilted up by two dominoes.
With the Domino on the right side:
.797, .812, .711, .765, .726
With the domino on the left side:
.820, .875, .750, .828, .828
** Your report of 5 trials each way for 3 dominoes **
The following time intervals were collected from the time it took a ball to free roll 30cm down a ramp tilted up by three dominoes.
With the Domino on the right side:
.625, .641, .648, .586, .601
With the domino on the left side:
.641, .672, .679, .679, .641
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
The hypothesis that I stated earlier concurs with the recorded measurements from the experiment. As the ramp got steeper, the time intervals became shorter between the ball at free rest and hitting the bracket.
** How do you think ave velocity is related to slope? **
I think the average velocity is indirectly proportional with the slope of the ramp. As the ramp becomes steeper, the avg velocity decreases. Each slope covers the same distance of 30cm, but each slope yields a different time interval; and avg Velocity equals distance divided by time.
** Speculate on why ave velocity changes with slope. **
I think that avg velocity is affected by a change in slope really relys on the force of gravity. The coefficient of friction of the ball and the board remain constant; however, the force of gravity (even though constant) has a greater effect on the ball.
** How could you test your speculations? **
To verify my speculations, which has already been observed through this lab, I could calculate everything with proven math formulas to lend probablity to my speculation.
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1 hr. 40 min
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Neat experiment.
Very good work. Let me know if you have questions.