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WFU Physics Lecture Demonstrations
Bell in a VacuumPIRA 3B30.30 |
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Description: |
A bell in a vacuum will get less audible as the air
is pumped out. Since sounds is a pressure wave, it must have a medium
through which to travel. (there is no sound in space!) The low ringing
heard at the end of the demo is due to physical coupling between the bell
and the jar.
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Recipe and
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Bell in Jar |
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Video: |
Streaming Video: None |
MPG Video: None Real Video: None |
Notes: |
None at this time.
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Demos
Mechanics
Fluid Mechanics
Waves
Thermodynamics
E&M
Optics
Modern
Astronomy
Information
100 Olin Physical Laboratory
Wake Forest University
Winston-Salem, NC 27109-7507
Phone: (336) 758-5337, FAX: (336) 758-6142
E-mail: wfuphys@wfu.edu