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Earth Hockey II: Instructor's Guide
Main Ideas
Visually explore the effects of Coriolis and centrifugal acceleration.
Students' Task
Estimated Time: 45–60 minutes
Work through the Maple worksheet:
- Make sure you understand the default pictures.
- Try your own initial configurations. Compare different values of the angular velocity (including negative).
- Try to produce a boomerang, that is a configuration which returns to its
initial position as seen by the rotating observer.
- Try to mimic the animation you worked on earlier.
Prerequisite Knowledge
- Previous activity investigating particular examples.
Props/Equipment
Activity: Student Conversations
- Students may be confused about the role of the various parameters.
- Students may need to change the viewpoint of their Maple animation in order to obtain a picture which looks like their example from the previous activity.
Activity: Wrap-up
- Have students discuss their attempts to model boomerangs (and possibly loops and right angles).
- Ask students to share their constructed model, and to discuss why it was chosen.
Extensions
- Are there trajectories with multiple loops?
- Are there trajectories which loop forever?