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 time required will be least for the steepest ramp.
** As slopes increases will time intervals increase, decrease or show no pattern? **
The time intervals would be decreasing.
** Your report of 5 trials each way for 1 domino **
1.43
1.38
1.43
1.31
1.37
1.44
1.32
1.38
1.37
1.32
These are the times in seconds it takes for the ball to roll down a ramp a distance of 26.6 cm with one die under one side.
** Your report of 5 trials each way for 2 dominoes **
I was thinking that relying on my vision would be more accurate than my hearing the ball strike.
.99
.99
.98
1.04
.95
.99
.99
.99
.99
.98
I used the DOS version of the TIMER program which gives only 1 / 100th if a second accuracy. I am shocked at my precision in these trials. These are the times in seconds it takes for the ball to roll down a ramp a distance of 26.6 cm with two dice under one side.
** Your report of 5 trials each way for 3 dominoes **
.77
.84
.77
.76
.77
.82
.82
.77
.82
.87
These are the times in seconds it takes for the ball to roll down a ramp a distance of 26.6 cm with three dice under one side.
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
Yes, the time intervals were reduced as dice were added, hence the slope was increased.
** How do you think ave velocity is related to slope? **
The greater the slope, the greater the final velocity of the ball, which contributed to the greater average velocity.
** Speculate on why ave velocity changes with slope. **
The greater the slope, the closer the acceleration gets to -9.8 m/s^2, the acceleration due to gravity. The greater the acceleration, the greater the average velocity.
** How could you test your speculations? **
I would graph the data to obtain the average velocity of each trial obtained from the slope of each line. 26.6 cm / (time of each trial)
** **
35 min.
** **
I enjoyed this excercise.
Good data. Be sure to hang on to the data, which will be further analyzed in an upcoming experiment.