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 **
The piece of ramp I have is just over 15 cm long.
** Will a steeper ramp give greater or lesser time? **
The time required on the steepest ramp will be less than the time required on the least steep ramp.
** As slopes increases will time intervals increase, decrease or show no pattern? **
Decreasing
** Your report of 5 trials each way for 1 domino **
1.227
1.188
1.281
1.273
1.398
1.164
1.195
1.094
1.133
1.094
These are time intervals in seconds for the ball rolling down a 15 cm ramp with one dominoe under it.
** Your report of 5 trials each way for 2 dominoes **
.875
.820
.813
.727
.750
.766
.734
.773
.711
.773
These are the time intervals for a steeper slope with 2 dominoes under the end of the ramp.
** Your report of 5 trials each way for 3 dominoes **
.664
.680
.641
.641
.680
.688
.641
.617
.609
.609
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
No the data support it. The steeper the ramp the shorter the time required to travel down it.
** How do you think ave velocity is related to slope? **
The average velocity increases as the slope of the ramp increases.
** Speculate on why ave velocity changes with slope. **
The pull of gravity.
** How could you test your speculations? **
I know that an object in free fall would travel faster than on these ramps, but this is due to friction. I could continue to increase the slope until the slope was vertical.
** **
35 minutes.
** **
&#Your work looks very good. Let me know if you have any questions. &#