This week we expanded on our knowledge of motion. We learned how to record motion in a graph; we plotted time on the x-axis and distance traveled on the y-axis. The graph helped us see the motion of an object, describe the position of the object, and compare the speed of one object to another.
To learn how to graph/describe motion, we mainly worked on worksheets and discussed it in class. The worksheets helped us understand if an object was moving a greater distance than another object. If one position changed more per second, it meant that it was going faster. We then graphed what we read or saw. Using the graph, we could tell how fast it moved and how much distance it would move later on. Plotting these graphs helped us decipher the position at one second or in a certain amount of time, which can be useful. For example, in one of our homework assignments we had to figure out when two comets would collide using the data we had. To do this, we had to see the change of position per day (day was our time unit), which represented the speed of the comet.
This is important when running track as you may want to keep a constant pace. Also, when driving a car, the speedometer says __mph (miles per hour) indicating your speed which enables you to stay within the speed limits and when to accelerate, or decelerate. Another example is in stock trading, the position of the price per sec, min, hour, month or year is shown in a graph, so people can compare the data.
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