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Formative assessment questions for teaching physics

A2L Item 260

  • Description: Identify the displacement of an object at a specific time given a plot of velocity versus time.
  • Goal: Interrelate representations of kinematical quantities
  • Source: CT151.2-10
  • Keywords: Displacement, Graphing, Mechanics, Velocity

The question for students:

Item260_fig1.gif

An object’s motion is described by the graph above. The displacement of the object during the entire 16 seconds is most nearly…

  1. 200 meters
  2. 250 meters
  3. 300 meters
  4. 350 meters
  5. 400 meters
  6. 450 meters
  7. Cannot be determined

Commentary for teachers:

Answer

(7) Students have difficulty reading graphs and finding areas.