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L 1-3 Jumping Jack Experiment

L 1-3 Jumping Jack Experiment. Line graphs. The Experiment requires 4 people:. A Jumper (to do the jumping jacks) A timer ( to keep track of the time) A counter (to count the jumping jacks ) A Recorder ( to write down the number of jumping jacks )

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L 1-3 Jumping Jack Experiment

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  1. L 1-3Jumping Jack Experiment Line graphs

  2. The Experiment requires 4 people: • A Jumper (to do the jumping jacks) • A timer ( to keep track of the time) • A counter (to count the jumping jacks ) • A Recorder ( to write down the number of jumping jacks ) As a group, decide who will do each task. Prepare a table for recording the total number of jumping jacks after every 10 seconds, up to a total time of 2 minutes or 120 seconds.

  3. Here’s how to do the experiment: • When the timer says, “go”, the jumper begins doing jumping jacks. • The counter counts the jumping jacks out loud. • Every 10 seconds , the timer says, “TIME!” and the recorder records the total number of jumping jacks the jumper has done so far. • Repeat the experiment (if you have time.)

  4. Making the Line graph • Step 1: Select 2 variables. For example, for the JJ experiment the two variables are time ( in the x-axis) and number of jumping jacks ( in the y-axis) (y-axis) number • of JJ’s time (in seconds)

  5. Step 2:Select a scale for each axis. • For each axis, you need to determine the largest and the smallest values you want to show on your graph and how you want to space the scale intervals. • In the jumping jack experiment, the values for time are between 0-120 seconds, so in a graph of this data, you could label the x-axis (time) from 0 to 120. Since you collected data every 10 seconds, you could place numbers at 10 second intervals.

  6. Step 3: Plot the data points. • For example, suppose that at 60 seconds, you had done 65 jumping jacks. To plot this information, start at 60 on the X-axis (time) and follow a line straight up. • On the Y-axis (number of jumping jacks), start at 65 and follow the line straight across. • Make a point where the two lines meet (intersect). This point indicates that at 60 seconds, you did 65 jumping jacks.

  7. Example of Jumping Jack Line Graph

  8. HOMEWORK: • Make a LINE graph of your jumping jack data. • What does your graph show about the jumping jack rate ( number of jumping jacks per second) as time passed? • Is the relationship you found between the number of jumping jacks and the time, easier to see in a table or the graph? Explain your answer.

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