Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum Why the weight of a quart of liquid varies:

 Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

# Why the weight of a quart of liquid varies:

## Why the weight of a quart of liquid varies: - Physics Forum

### Why the weight of a quart of liquid varies: - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

#1
03-13-2005, 01:10 PM
 Don1 Guest Posts: n/a
Why the weight of a quart of liquid varies:

Now I know that most of you already know why the weight of a quart of
most water like liquids varies. This is for those who may not know:

The weight of a fluid quart is one pound, or 32 ounces; but only where
it will free fall at a rate of g=32'/sec^2, which is the approximate
rate of free fall due to gravity over most of Earth's surface:
Therefore the "quantity of matter", or mass in one fluid quart
numerically equals 32 oz/(32'/sec^2)=1 oz sec^2/foot.

In an environmentally controlled laboratory on the moon, a fluid quart
will only weigh about one sixth of a pound, or 5.33 ounces: Because the
acceleration of free fall (g) due to gravity there is only about one
sixth as great as it is on Earth: So that g=5.33'/sec^2. The "quantity
of matter", or mass in one fluid quart there is still numerically equal
to 5.33 oz/(5.33'/sec^2)=1 oz sec^2/foot; the same as it was on Earth.

In an environmentally controlled laboratory on any similar planet, the
quantity of matter, or mass in a fluid quart will still be 1 oz
sec^2/foot: Because its weight (w), divided by the acceleration of free
fall (g) due to gravity there will still be 1 oz sec^2/foot.

#2
03-13-2005, 02:58 PM
 cnctutwiler@wmconnect.com Guest Posts: n/a
Why the weight of a quart of liquid varies:

Don1

When grandma was cooking she used to mumble "A pints a pound the world
round" and of course she was measuring either milk or water. If your
quart weighs one pound (as you say) then I have to assume your not
cooking on earth.

#3
03-13-2005, 05:23 PM
 Don1 Guest Posts: n/a
Why the weight of a quart of liquid varies:

[Only registered users see links. ] wrote:
world

You got me, but good "conn. writer"! Of course, 32 ounces is the weight
of a quart and it's _two_ pounds. _Thanks_ a mint; try:

The weight of a fluid quart is two pounds, or 32 ounces; but only where
it will free fall at a rate of g=32'/sec^2, which is the approximate
rate of free fall due to gravity over most of Earth's surface:
Therefore the "quantity of matter", or mass in one fluid quart
numerically equals 32 oz/(32'/sec^2)=1 oz sec^2/foot.

In an environmentally controlled laboratory on the moon, a fluid quart
will only weigh about one sixth of two pounds, or 5.33 ounces: Because
the acceleration of free fall (g) due to gravity there is only about
one sixth as great as it is on Earth: So that g=5.33'/sec^2. The
"quantity of matter", or mass in one fluid quart there is still
numerically equal to 5.33 oz/(5.33'/sec^2)=1 oz sec^2/foot; the same as
it was on Earth.

In an environmentally controlled laboratory on any similar planet, the
quantity of matter, or mass in a fluid quart will still be 1 oz
sec^2/foot: Because its weight (w), divided by the acceleration of free
fall (g) due to gravity there will still be 1 oz sec^2/foot.

Incidentally, this will not apply on planets that don't have a solid
terra firma surface, like Earth, the moon and Mars.

Don

#4
03-13-2005, 05:43 PM
 cnctutwiler@wmconnect.com Guest Posts: n/a
Why the weight of a quart of liquid varies:

Don1--not sure what "conn.writer" means--but your welcome. I'm not the
math police but since you started your discussion with...."this is for
thoughs who may not know...." I thought I'd jump in--also my wife is
out of town and I have free time.

Good luck with the after lunch crowd!

Tut

#5
03-13-2005, 07:25 PM
 Don1 Guest Posts: n/a
Why the weight of a quart of liquid varies:

[Only registered users see links. ] wrote:
the
for

I meant no offense with the "conn.writer" monica Tut; it was just a
wild guess: I'm from Connecticut(:-))

Thanks again, Tut.

Don

#6
03-13-2005, 07:26 PM
 Don1 Guest Posts: n/a
Why the weight of a quart of liquid varies:

[Only registered users see links. ] wrote:
the
for

I meant no offense with the "conn.writer" monica Tut; it was just a
wild guess: I'm from Connecticut(:-))

Thanks again, Tut.

Don

#7
03-13-2005, 07:52 PM
 OG Guest Posts: n/a
Why the weight of a quart of liquid varies:

<[Only registered users see links. ]> wrote in message

Quite apart from Don's basic problems I'm afraid your grandma would have
had trouble with her recipes in Britain where a pint is 20 oz (pound and
a quarter).

#8
03-13-2005, 08:11 PM
 cnctutwiler@wmconnect.com Guest Posts: n/a
Why the weight of a quart of liquid varies:

OG--great point but Don1 had established 32 oz as the reference frame
for a quart. I should have remembered on my visits to Britain though,
that a pint of your tasty ale was well worth the pound charged. Maybe
Don1 has found a bar in London that sells 32oz of ale for a pound--then
one pound would equal a quart. Hmmmm!

Thanks!

Tut

 Tags liquid , quart , varies , weight

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home General Science Forums     Biology Forum     New Member Introductions Forum     Chemistry Forum         Organic Chemistry Forum     Physics Forum     General Science Questions and Layperson Board         Science and Religion Forum         Zoology Forum     Environmental Sciences and Issues General Forum     Chit Chat         Science and Lab Jokes     Article Discussion     Molecular Biology News and Announcements         Conferences , Symposiums and Meetings         Molecular Station Suggestion Forum         Instructions for Posting, Help, and Frequently Asked Questions     Science News and Views         Molecular Biology Lectures and Videos     Science Careers         Post-doctoral         Medical School         Ph.D Doctor of Philosophy         Science Jobs Forum Molecular Research Topics Forum     PCR - Polymerase Chain Reaction Forum         Real-Time PCR and Quantitative PCR Forum     Bioinformatics         BioStatistics Forum     Molecular Biology Techniques         Molecular Cloning Forum         Electrophoretic Mobility Shift Assay Forum         Agarose Gel Electrophoresis Forum         BioPhysics Forum         Gene Therapy     Cell Biology and Cell Culture         Apoptosis, Autophagy, and Necrosis Forum         Flow Cytometry Forum         Transfection Forum         Confocal - Microscopy Imaging Techniques         Immunology and Host-Pathogen Interactions         Signalling Biology         Stem Cell Forum     Basic Lab Protocols and Techniques         SDS-PAGE Gel Electrophoresis Forum     DNA Techniques         DNA Extraction Forum         cDNA Forum     Epigenetics Forum: DNA Methylation, Histone and Chromatin Study         ChIP Chromatin Immunoprecipitation Forum     Protein Science         Antibody Forum             Immunoprecipitation Forum         Western Blot Forum         Protein Crystallography Forum         Recombinant Protein Forum         ELISA Assay Forum         Protein Forum     Proteomics Forum         Peptide Forum         Mass Spectrometry Forum         2-D Gel Electrophoresis Forum     Omics and Genomics Forum         Microarrays Forum         Genomics Forum     RNA Techniques Forum         RNAi and SiRNA Forum     Histology Forum         Immunohistochemistry Forum         Immunocytochemistry Forum         Electron Microscopy Forum         Immunofluorescence Forum     Protocols and Methods Forum     Molecular Biology Articles and Protocols     Animal and Molecular Model Systems         Drosophila Forum         Yeast Forum         Zebrafish Forum         Botany Forum         C Elegans Forum         Arabidopsis and Plant Biology         Microbiology Forum         Knockout Mouse Forum     Chromatography Forum Products and Vendor Discussion     Molecular Biology Products and Vendors         Bad Product/Service? Post Here         Lab Equipment Discussion and Reviews Regional Molecular Biology Discussion     Forum Chemie     Forum Biologie     Forum Biologia     Forum Chimica     Forum Physik     Forum De Chimie     Forum De Physique     Forum Chemia     中国人分子的生物学论坛 Chinese     Greek Molecular Biology Forums     分子生物学のフォーラム Japanese     ميدان فارسى. Persian Molecular Biology     [أربيك] علم ساحة- Arabic     Forum de Biologie Moleculaire     Forum Biologia Molecolare     Forum die Molekularbiologie     Foro Biologia Molecular

 Similar Threads Thread Thread Starter Forum Replies Last Post James Redford Physics Forum 0 07-31-2005 12:08 PM Don1 Physics Forum 5 03-17-2005 01:05 AM Donald G. Shead Physics Forum 52 07-09-2004 11:19 AM Donald G. Shead Physics Forum 6 04-14-2004 05:44 PM

All times are GMT. The time now is 11:06 AM.

 Contact Us - Molecular Biology - Archive - Privacy Statement - Top