This is a graph of the velocity of a falling pumpkin (along the line of sight between the pumpkin and
the recording microphone).  A 3kHz siren was attached to the pumpkin.
The pitch was recorded by a microphone on the ground as the pumpkin fell.   The shift in the perceived
pitch measures the velocity of the pumpkin relative to the microphone.  The microphone was placed
approximately 1 m above the ground and 1.5 m from the impact point of the pumpkin.  The pumpkin was
dropped from a height of approximately 40 m.

ChartObject Pumpkin (Doppler) Velocity
Student:  R. Flores, Physics of Music, Fall 2000
Data recorded and analyzed using CoolEdit2000

Last Updated on 12/14/00
By Charles Earl Hyde-Wright
Email: chyde@odu.edu