1M10.10 - Ball or Block on a Shelf

Code Number:
Demo Title:
Ball or Block on a Shelf
Area of Study:
Plexiglas Boxes and Tennis Balls or Blocks.

Stack the Plexiglas boxes so you have shelves of equal heights.  Place the tennis balls on the shelves and discuss how the amount of work done on each ball depends on the height of the shelf it was placed on.

  • Scott Hertting, "Energy Blocks - A Physical Model for Teaching Energy Concepts", TPT, Vol. 54, #1, Jan. 2016, p. 31.
  • Borislaw Bilash II and David Maiullo, "Work is Going My Way", A Demo a Day: A Year of Physics Demonstrations, p. 78.

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