Slopes+and+Rollers

=Slopes and Rollers Experiment=

For this experiment we had to build the equipment ourselves. We had to design a structure where you could change the angle of the ramp.

Aim:
Our goal is to find out if slopes that are higher make marbles roll farther than slopes that are lower.

Theory:
I predict that on the slope in the middle of the holder the marble will go the farthest. I believe this because the marble has more time to gain speed.

Apparatus: [[image:IMG_2192.JPG width="448" height="336" align="right" caption="Out of the wood and half tube we made this"]]

 * Wood, 60 cm long for sides, x2
 * Wood, 9 cm long for different heights, x11
 * Wood, 18 cm long for legs, x6
 * Half cardboard tube
 * Glue
 * Measuring tape
 * Marble

Method:

 * 1) Start by rolling out measuring tape
 * 2) Put ramp (half tube) on the second lowest height (6 cm)
 * 3) Let the marble roll down the ramp
 * 4) Wait until the marble stops rolling and use measuring tape to see how far it rolled
 * 5) Continue #2-4, but always move the ramp higher
 * 6) Take notes on a graph

Results:
The results that we got were a bit different to my theory. I thought that at one point the results would go up and then down again. That happened at 48 cm, though I think that something went wrong at that point. Here are the results:


 * Height of ramp (cm) || Distance of marble roll (m) ||
 * 6 || 0.69 ||
 * 12 || 1.55 ||
 * 18 || 2.36 ||
 * 24 || 2.85 ||
 * 30 || 4.26 ||
 * 36 || 4.41 ||
 * 42 || 4.68 ||
 * 48 || 3.93 ||
 * 54 || 4.49 ||



The Y-axis is the length of the marble roll in meters, the X-axis is the height of the ramp in centimeters.