7.7.C:  measure, record, and interpret an object's motion using distance-time graphs; and

Measure, Record, Interpret

AN OBJECT’S MOTION USING DISTANCE-TIME GRAPHS

Including, but not limited to:

• Distant – time graph

  • Show the distance that an object traveled over time in the form of a line graph.

    • Distance represented on the y-axis 

    • Time represented on the x-axis

  • Points on the line can be used to identify:

    • The distance traveled at a specific time

    • The speed at a specific point in the object's journey

  • The slope of the line or segments of the line can be used to find changes in the speed of the object.

    • Constant speed is indicated by straight lines or line segments.  

      • The steeper the line is the faster the speed.

      • A line that is straight across (horizontal) indicates the object is not moving or at rest.

    • Changing speed is indicated by curves or a change in the slop of a line.

      • Increasing speed – lines or line segments become more steep 

      • Decreasing speed – lines or line segments become less steep

      • Motion stopping – lines or line segments become horizontal or the graph (line) ends