WPN

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WPN

• By
• Seb Andrus
• Will Stark
• Andrew Chevalier
• Ray Nevels

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Background

• All objects fall at a constant acceleration.
• Some objects do not fall as fast as others,
  however, because of their drag. Drag is the
  friction on an object caused by air.
• After a certain point, the falling object will
  not be able to go any faster. This is caused by
  drag, and the fastest an object can fall in the
  atmosphere is called Terminal Velocity.

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Hypothesis

• Our hypothesis is that the smaller the object the
  faster it will fall.
• Our test is to drop foam spheres with the same
  masses, but different sizes, from the same
  altitude, and then time their decent.

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Procedure

• At first, we used a single, simple pulley loop
  anchoring the balloon and serving as a transport
  system to get our objects up to the airborne
  balloon. We later switched to a triangular pulley
  loop, with two anchor points, which proved to be
  much more convenient.

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Data
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Conclusion

• Our hypothesis was correct. The smaller the cross
  section of the sphere, the faster the sphere
  would fall.
• Next year we could use objects with the same
  surface area but different mass.