012–07190B
Magdeburg Plates
5
Operation with
ScienceWorkshop
to obtain quantitative information about the
force required to offset atmospheric pressure, and to demonstrate the correlation
between the breaking apart of the plates and the rise in interior pressure.
1.
Set up to monitor the pressure while pulling the vacuum.
2.
Pull vacuum (usually requires 3 or 4 pulls on the syringe plunger).
Note:
The vacuum deteriorates slowly, usually over a 10 – 60 minute
period.
3.
Disconnect part E
from part F (figure 6).
4.
Start recording data.
5.
Grasp both handles
and pull (individual
or “tug of war”).
6.
Stop recording data.
Operation
with
Science
Workshop
5
10
15
20
25
30
35
40
45
50
55
60
cc
Figure 6
Magdeburg Plates ready for experimentation and
monitoring of interior chamber pressure.
Pressure Sensor
H
E
to
ScienceWorkshop Interface
Note:
Take care to avoid jerking the Pressure Sensor when the
plates break apart.
This set is intended to be used by teachers, and their students while working
under appropriate supervision.
•
Make sure students are in a safe place to do a “tug of war.” Plates will
separate suddenly, possibly throwing pullers off balance. There should be
no breakable or sharp objects or sharp corners behind the students.
•
Do not tie a weight onto one handle in an attempt to pull the plates apart.
•
Do not tie ropes to the handles and do a “tug of “war to pull the plates apart.
The plates will separate suddenly and will fly through the air at a very high
velocity.
(continued on next page)
Safety
Considerations
F
