the eeps Data Zoo
curator:Tim Erickson
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 Ramp-Angle 1

Data from Henry Ma, Mills High School, Millbrae, CA. Sept 2002 courtesy of Art Fortgang.

Henry and his group timed a low-friction cart sliding down a track at various angles. They timed the cart using photogates. The angle comes from the height at the start and the distance along the track, which was 0.492 m for all runs.

The purpose was to figure out the acceleration of gravity.
time is in seconds -- the time it took the cart to go the .492 meters down the slope.
height in meters of the start of the track.

What was the acceleration for each run?
What was the angle for each run?
How can you extrapolate that information to get the acceleration of gravity?
Do that. What do you get?
What assumptions did you make in your calculations?

time height
3.5
0.017
2.2
0.033
1.7
0.048
1.6
0.056
1.4
0.076
1.2
0.087
1.2
0.103
1.0
0.121
0.9
0.140
0.83
0.175
0.7
0.250

<text form of the data>

 ©2002 eeps media 866.341.3377 or Last updated 20 October 2002 February 14, 2007 supported by NSF award DMI-0216656