Lesson Plan

The Effect of Unbalanced Force on Velocity

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Objectives

In this lesson, students will examine a situation where they can gauge the relationship of force and motion in two vectors. One of the vectors (gravity) is known in advance, while the other will be measured as a ratio of the first. Students will:

  • identify the relationships between force and motion.

  • learn that vectors of force and motion are independent of each other.


Essential Questions

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Vocabulary

  • Force: Action that accelerates an object.

  • Acceleration: The rate of change of velocity of an object over time.

  • Velocity: An object’s rate of change of position (speed) in a direction.

  • Terminal Velocity: The speed at which resistance (especially air resistance) balances acceleration (especially the acceleration of gravity).

  • Vector: Force with a direction, with values for both force and direction.


Duration

45 minutes/1 class period


Prerequisite Skills


Materials

  • electric fan

  • table tennis ball

  • meter ruler

  • graph paper (S-7-1_Graph Paper.doc)

  • Internet access

    • TV/monitor to show Internet video to students


Related Unit and Lesson Plans


Related Materials & Resources

The possible inclusion of commercial websites below is not an implied endorsement of their products, which are not free, and are not required for this lesson plan.

http://dsc.discovery.com/videos/mythbusters-dropped-vs-fired-bullet.html



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