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 to roll the ball down the length of the ramp will be greatest for the steepest ramp.
** As slopes increases will time intervals increase, decrease or show no pattern? **
The time intervals should be decreasing going from least to greatest slope.
** Your report of 5 trials each way for 1 domino **
The ball rolled 27 cm from release until it struck the bracket.
1.600
1.547
1.467
1.700
1.656
1.631
1.582
1.493
1.619
1.547
In this system the slope of the shelf is not very steep and takes a while to get from one end to the other. Data was collected using the Timer program. Time was started when the object was removed from rest and ended when it hit the bracket.
** Your report of 5 trials each way for 2 dominoes **
The ball rolled 27 cm.
.906
.968
1.000
1.007
1.107
.964
.988
1.013
1.192
0.953
In this system the slope of the shelf is higher than in the first so the ball will roll faster than n the first. Data was collected using the Timer program. Time was started when the object was removed from rest and ended when it hit the bracket.
** Your report of 5 trials each way for 3 dominoes **
.890
.750
.796
.838
.773
.785
.829
.740
.798
.821
** Do your results support or fail to support your hypothesis about increasing or decreasing times? **
My results support the hypothesis that was stated in the first two questions because the greater the slope the faster the object will travel across a certain distance.
** How do you think ave velocity is related to slope? **
The average velocity of the ball is directly related to the slope of the ramp. As the slope of the ramp increases, the average velocity of the ball increases.
** Speculate on why ave velocity changes with slope. **
When the ramp is on an incline there is nothing keeping the object to stay at rest. An object will stay in motion unless it is acted upon by an outside force.
** How could you test your speculations? **
You could calculate the slopes and average velocities through extensive examination of the experiment and the process of goign through several calculations.
** **
It took about 45 minutes to complete this experiment.
** **
&#Very good work. Let me know if you have questions. &#