Re: monitor know-how?

Article View: bit.listserv.physhare

Article #1654

Back to bit.listserv.physhare Previous Next

#1654

From: Hal Repasky
Date: Mon, 21 Mar 1994 19:14

30 lines
1913 bytes

Dear All,

I need some help...a humbling experience for a physics teacher!

In my Adv Physics class we are trying to do a project to predict
Decibel levels in our high school auditorium then compare them to
actual measurements.
We will actount for reflection later!

I know that Power is proportional to amplitude squared   P = k A*A

and that Intensity is proportional to Power    I = P/Area (crosssectional)

but (R.I.)  Relative Intensity = 10 Log (I/Io)  in dB's

Does that mean R.I. is proportional to the Log of A*A?

What I am trying to find is the easy? or basic relationship between

R.I. and Amplitude...

Anyone out-there can you explain better!?

Thanks,
__________________________
Hal Repasky, Sci Dept     |
repasky@seneca.pp.psc.edu |    Looking to the Future!
Seneca Valley S.H.S.      |
Harmony, PA 16037         |
--------------------------

Technical Details

Message-ID: <9403211914.AA20110@seneca.pp.psc.edu>

Path:

arc1-ca.pugleaf.net!gmd.de!urmel.informatik.rwth-aachen.de!newsserver.rrzn.uni-hannover.de!aix11.hrz.uni-oldenburg.de!uniol!zib-berlin.de!zrz.TU-Berlin.DE!netmbx.de!Germany.EU.net!EU.net!howland.reston.ans.net!gatech!paladin.american.edu!auvm!SENECA.PP.PSC.EDU!repasky

Show Full Headers

Complete Article Headers

X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 16cfd8,bb188b4ea7b14703
X-Google-Attributes: gid16cfd8,public
X-Google-ArrivalTime: 1994-03-21 11:14:45 PST
Path: arc1-ca.pugleaf.net!gmd.de!urmel.informatik.rwth-aachen.de!newsserver.rrzn.uni-hannover.de!aix11.hrz.uni-oldenburg.de!uniol!zib-berlin.de!zrz.TU-Berlin.DE!netmbx.de!Germany.EU.net!EU.net!howland.reston.ans.net!gatech!paladin.american.edu!auvm!SENECA.PP.PSC.EDU!repasky
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: bit.listserv.physhare
Return-Path: <@AUVM.AMERICAN.EDU,@PSUVM.PSU.EDU:owner-physhare@PSUVM.PSU.EDU>
Return-Path: <@PSUVM.PSU.EDU:repasky@SENECA.PP.PSC.EDU>
X-Mts: smtp
Message-ID: <9403211914.AA20110@seneca.pp.psc.edu>
Date: Mon, 21 Mar 1994 14:14:45 -0500
Sender: Sharing resources for high school physics <PHYSHARE@PSUVM.BITNET>
From: Hal Repasky <repasky@SENECA.PP.PSC.EDU>
Subject: Re: monitor know-how?
In-Reply-To: Your message of "Mon,
              21 Mar 94 07:54:55 EST." <9403211242.AA07884@mailer.psc.edu>
Lines: 29