WFU Department of Physics Wake Forest University

 

Wake Forest Physics
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WFU Physics Lecture Demonstrations

Bell in a Vacuum

PIRA 3B30.30

Image:

Photo of Demo

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.

Recipe and
Location:

Bell in Jar
Vaccuum Pump

Video:

Streaming Video:

None

MPG Video:

None

Real Video:

None

Notes:

None at this time.

 

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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