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Energi Fysik MA

Spørgsmål om energi

Hvad er kinetisk energi?Bevægelsesenergi
Hvad er potentiel energi? Beliggenhedsenergi
Hvad er mekanisk energi? Kinetisk+Potentiel energi
Hvad er ligningen for kinetisk energi? Ekin=½*m*V^2
Hvad er ligningen for potentiel energi? Epot=m*g*h
Hvad er ligningen for mekanisk energi? Emek=Ekin+Epot
Hvad er SI-enheden for masse [m]? Kg
Hvad er SI-enheden for højde [h]? m
Hvad er SI-enheden for hastighed [V]? m/s
Hvilke skalaer måler vi temperatur på? ^oC, Farenheit, Kelvinskalaen
Hvad er SI-enheden for temperatur? [T] Kelvin
Hvad sker der i et stof når temperaturen stiger? Molekylerne bevæger sig hurtigere
Hvad sker der i et stof når temperaturen falder? Molekylerne bevæger sig langsommere
Hvornår opstår det absolutte nulpunkt? [T] -273,15oC
Hvordan definerer vi det absolutte nulpunkt? Det er når molekylerne ikke længere bevæger sig
Hvor mange kelvin er 20oC? T=20oC=(273,15+20)K= 293,15 K
Hvordan regner vi temperaturen kelvin? Tk=(Tc+273,15)K
Created by: Dalle



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