Class Articles
  • Motion and Speed Webquest Article (January 23)

  • ●  Motion occurs when there is a change in position of an object with respect to a reference starting point.

  • ●  The final position of an object is determined by measuring the change in position and direction of the

    segments along a trip. The following terms are used to describe and determine motion:

    Position

  • ●  Position is the location of an object.

  • ●  An object changes position if it moves relative to a reference point.

  • ●  The change in position is determined by the distance and direction of an object’s change in position

    from the starting point (displacement). Direction

  • ●  Direction is the line, or path along which something is moving, pointing, or aiming.

  • ●  Direction is measured using a reference point with terms such as up, down, left, right, forward,

    backward, toward, away from, north, south, east, or west.

    Speed

  • ●  The slope of the line can tell the relative speed of the object.

  • ●  When the slope of the line is steep, the speed is faster than if the slope were flatter.

  • ●  When the slope of the line is flatter, the speed is slower.

  • ●  When the slope of the line is horizontal to the x-axis, the speed is zero (the object is not moving).

 

 Position-Time Graphs

A graph used to show a change in an object’s location over time.
For this type of graph, time (the independent variable) is plotted on the x-axis and the position (the dependent variable) is plotted on the y-axis.