TEST BANK For Mosby’s Respiratory Care Equipment, 11th Edition, by J. M. Cairo, Verified Chapters 1 - 15, Complete Newest Version TEST BANK For Mosby’s Respiratory Care Equipment, 11th Edition, by J. M. Cairo, Verified Chapters 1 - 15, Complete Newest Version TEST BANK For Mosby’s Respiratory...
1. Powerlislalmeasureloflwhichloflthelfollowing?
a. Mechanicallenergy
b. Gravitationallpotentiallenergy
c. Thelratelatlwhichlworklislbeinglperformed
d. Thelratelatlwhichlatomslandlmoleculeslmove
ANSWER:l C
Powerlislalmeasureloflthelratelatlwhichlworklislbeinglperformed.lThelformulalPl=lW/J,lwherelWl=lw
attslandl1lwattlislequalltol1lJ/s,lexpresseslthis.lJouleslarelthelinternationallstandardlforlexpressinglen
ergylandlwork.
PTS:lll 1 REF:l Pagel8
2. Whenleffortlproduceslalchangelinlthelpositionloflmatter:
a. worklislperformed.
b. itlislknownlaslaljoule.
c. mechanicallpowerlislcreated.
d. thellawloflthelconservationloflenergylislbeinglused.
ANSWER:l A
Worklislperformedlonlylwhenleffortlorloutsidelforceslproducelalchangelinlthelpositionloflmatter.
PTS:lll 1 REF:l Pagel8
3. Thelunitlusedltolexpresslthelforcelofl1lnewtonl(N)lactinglonlal1-
kilograml(kg)lobjectltolmovelitl1lmeterl(m)lislwhichloflthelfollowing?
a. Watt c. Kilowatt
b. Joule d.l Kineticlenergy
ANSWER:l B
Oneljoulelislequalltolthelforcelofl1lNlactinglonl1lkg.lAlwattlislequivalentltol1lJ/s.lAlkilowattlislsimplyl
1000lW.lKineticlenergylislenergylanlobjectlpossesseslwhenlitlislinlmotion.
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