MadSci Network: Physics

Subject: can a pendulum swing perpetually in vacuum?

Date: Sat Aug 19 09:59:47 2000
Posted by wongyuanrui
Grade level: 10-12 School: raffles institution
City: No city entered. State/Province: No state entered. Country: singapore
Area of science: Physics
ID: 966693587.Ph


i know the reason why pendulums stop swinging after some time in air is 
because of air resistance.
what if we set a pendulum swinging in vacuum?
will it swing forever?
if so, wouldn't we have created perpetual motion?
is perpetual motion possible?

thanks for answering my question.

Re: can a pendulum swing perpetually in vacuum?

Current Queue | Current Queue for Physics | Physics archives

Try the links in the MadSci Library for more information on Physics.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network,
© 1995-2000. All rights reserved.