Phy 231
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 steepest ramp will have the interval with the least amount of time because the ball will be able to roll across this the fastest.
** As slopes increases will time intervals increase, decrease or show no pattern? **
I would expect the time intervals to decrease as the slopes become greater. This is because the speed of the ball correlates with the slope of the ramp.
** Your report of 5 trials each way for 1 domino **
1.391
1.531
1.484
1.406
1.562
1.398
1.695
1.367
1.281
1.516
Each line includes the length of the time interval as the ball rolls down the ramp. This was recorded using the TIMER program and clicking when the ball was released, and also when it came to a stop.
** Your report of 5 trials each way for 2 dominoes **
1.063
.969
.875
1.109
1.234
1.047
1.125
1.000
1.055
1.000
Each line includes the length of the time interval as the ball rolls down the ramp. This was recorded using the TIMER program and clicking when the ball was released, and also when it came to a stop.
** Your report of 5 trials each way for 3 dominoes **
0.953
0.953
0.984
0.938
0.984
0.923
0.906
0.984
1.000
0.984
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
My results support my hypothesis earlier that the slope of the rail corresponds with the time interval.
** How do you think ave velocity is related to slope? **
The average velocity increases as the slope of the rail increases.
** Speculate on why ave velocity changes with slope. **
The average velocity changes with respect to the slope because of the force of gravity upon the balls.
** How could you test your speculations? **
You can verify that the speculations are valid by calculing the velocity for each trial of 1/2/3 dominoes.
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35 min
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&#Good responses. Let me know if you have questions. &#