PASCO SE-9788 Coin and Feather Tube - Manual

Instruction Sheet
for the PASCO
Model SE-9788
COIN AND FEATHER TUBE
012-07193A
08/99
$1.00
© 1999 PASCO scientific
Introduction
The PASCO SE-9788 Coin and Feather Tube
demonstrates the effect due to gravity on objects
falling through a vacuum, compared to the effect on
objects falling through air.
In the demonstration, students see that in an
environment in which air resistance is not
countering the force of gravity (in a vacuum), any
object— regardless of its mass or density—will
require the same time period to reach the bottom of
the tube. However, when air molecules are present,
air resistance counters the force due to gravity.
Students will observe that when air is present,
objects of differing mass or density require
differing time periods to reach the bottom of the
tube.
Equipment
INCLUDED
Part Label Part Name
A clear plastic tube
B end piece
C end piece with connector
D “coins”, Styrofoam pieces
E tubing with check valve
F tubing with T and check valve
G 60 cc syringe
H tubing for connection with a
PASCO Pressure Sensor
Note: Parts E, F, and G constitute the vacuum pump
ADDITIONAL SUGGESTED
• ScienceWorkshop Interface (300, 500, 700, or 750)
• Pressure Sensor (CI-6532, CI-6533, or CI-6559)
• computer and data acquisition software
(ScienceWorkshop or DataStudio)
A
C
B
G
E
F H