Photo : Taken during our first trial of the crab-walking.

Four our first lab, the question we got asked was “How can we represent motion in different directions on a Position-Time graph?” Having not done any background research because in this case it wasn’t necessary, we decided to make a hypothesis. Our hypothesis was that if a human can move in an opposite or still motion, we can represent this on a graph as a positive and/or negative line on the graph which will show us if it is going in a different direction. We then tested our hypothesis by doing the crab walks in three different trials: A positive direction, a negative direction, and a still motion. As we started analyzing our data by graphing this information, we noticed that for our graph it is necessary to have positive and negative units (centimetres) on the y axis because we were moving in two seperate directions ( ex// north and west ). In the end we came to the conclusion that our hypothesis was correct. We can graph different directions on a Position-Time graph if the motion is going in a negative direction, where negative units are also necessary. The procedure in this lab is important in real life because it helps you know exactly how to collect data correctly and how you can present the information, using in this case a graph. Continue reading →