This demonstration shows the effects of atmospheric pressure. Initially, the plates pull apart easily. When the air is pumped out from between them, the two plates are difficult to pull apart because of the atomospheric pressure.
* Equipment seen in the video may vary from equipment used in ND Demonstrations. See information and images below for ND equipment and setup.
Setup:
Connect the plates to the vacuum cart with the valve open. The plates will pull apart easily.
Put the plates together and turn on the vacuum pump. Be careful of the alignment so that you get a good seal.
Once the air is pumped out, close the valve and turn off the pump. The plates will be very difficult to pull apart.
Open the valve and the plates will fall apart.
Notes:
None
Courses Used In:
Coming Soon
Discussion and Polling Questions:
Coming Soon
Equipment Needed:
Magdeburg Plates
Vacuum Cart