2B40.18 - Beakers or Boards and Masses

Place the beaker with a mass in the center into a tank of water.
Keep adding masses until the beaker sinks. The beaker has a volume of just over 1400 cc's so it will take approximately that much mass before the beaker will sink.
Place the blocks with the attached masses into a tank of water.  The one with two masses will sink while the one with one mass will float.
Code Number:
2B40.18
Demo Title:
Beakers or Boards and Masses
Condition:
Excellent
Area of Study:
Heat & Fluids
Equipment:
Plastic beaker with masses, Round blocks with attached masses, Plexiglas tank.
Procedure:

Place the beaker with a mass in the center into a tank of water.  Keep adding masses until the beaker sinks. The beaker has a volume of just over 1400 cc's so it will take approximately that much mass before the beaker will sink.

Place the blocks with the attached masses into a tank of water.  The one with two masses will sink while the one with one mass will float.  

References:
  • Robert Ehrlich, "H.2, Sinking a Floating Block", Turning the World Inside Out, p. 97.
  • Julius Sumner Miller, Q134 & A134, Millergrams II – Some More Enchanting Questions for Enquiring Minds, p. 22 & 83.

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