Monday 28 March 2011
Big 5 questions 2
I made a lot of mistakes in the last one, and for some reason, I did the wrong questions. This is my actual work, with the right questions
Tuesday 8 March 2011
Something about walking-Experience and Translations (OMG 2 blogs in one)
These are the results of the Kinematics lab. The graphs are translated into d-t/v-t and a-t graphs.
And here are the translated versions of the graphs, all on one page.
So the "walk the graph" experience was a lot of fun. We were given a motion detector, and a few graphs to "walk". We had to match our movements to the graphs. The position-time graphs were easy to match: A horizontal line means you are not moving, a sloped line means you are walking at a constant velocity: a positive slope means you are walking away from the origin, and a negative slope means you are walking toward the origin.
For the velocity time graphs, if the slope of the line is zero, you are moving at a constant velocity. If the line is positive, you are walking away from the origin, if it is negative, you are walking toward the origin, and if the line is at 0, you are stationary. A sloped line means you are accelerating (positive slope: speeding up, negative slope: slowing down). Sounds easy, right? Well, it was hard. We tried the geisha walk, but it didn't work out that well. We didn't have the skills or the patience to shuffle around that slowly. We must have spent at least half the class trying to walk those graphs.
Near the end of the class, we had to make a graph for other people to walk. Our "graph" was created by running randomly in front of the motion detector.
And here are the translated versions of the graphs, all on one page.
So the "walk the graph" experience was a lot of fun. We were given a motion detector, and a few graphs to "walk". We had to match our movements to the graphs. The position-time graphs were easy to match: A horizontal line means you are not moving, a sloped line means you are walking at a constant velocity: a positive slope means you are walking away from the origin, and a negative slope means you are walking toward the origin.
For the velocity time graphs, if the slope of the line is zero, you are moving at a constant velocity. If the line is positive, you are walking away from the origin, if it is negative, you are walking toward the origin, and if the line is at 0, you are stationary. A sloped line means you are accelerating (positive slope: speeding up, negative slope: slowing down). Sounds easy, right? Well, it was hard. We tried the geisha walk, but it didn't work out that well. We didn't have the skills or the patience to shuffle around that slowly. We must have spent at least half the class trying to walk those graphs.
Near the end of the class, we had to make a graph for other people to walk. Our "graph" was created by running randomly in front of the motion detector.
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