Analyze Graph Exercise. LINE GRAPH A line graph is best for showing data that changes over a range.

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Presentation transcript:

Analyze Graph Exercise

LINE GRAPH A line graph is best for showing data that changes over a range.

Analyze the Graph Describe the experiment. The experimenter is measuring the change in volume of a gas over time What is the measuring interval selected by the experimenter? The experimenter selected a measuring interval of 10 seconds (independent variable on x-axis)

Describe what is happening from 0-40 s. The volume of gas begins to increase over time at an increasing rate. 3 ml per 10 s, then 6 ml per 10 s and 13 ml per 10 s Describe what is happening from 40 s to 100 s. The volume of gas continues to increase, but at a more rapid rate. Volume rate increases range from 14 ml to 24 ml per 10 s How are these two ranges the same? Different? Same: Both ranges show increases of gas volume over time Different: The 40 – 100 s range shows a more rapid rate of volume increase over time than the 0-40 s range.

Describe what is happening from 100 s to 140 s. How does this range differ from 40 s to 100 s? The volume of gas continues to increase, but at a much slower rate. 7 ml per 10 s, then 5 ml per 10 s, then 2 ml per 10 s Describe what is happening from 140 s to 170 s. There is no measured change in the volume of gas over time— Volume remains unchanged at 156 ml In one sentence, summarize the trend of the data as shown by the graph. The trend of the graph is characterized by an unsteady increase in the volume of gas over time until the volume reaches a maximum value where no further increase occurs.