Internal Energy and Temperature

Science — Second Preparatory

Common mistakes

Comparison aspect	Main idea	Keywords
Mistake	thinking that the body with the higher temperature always has more internal energy. Correct: internal energy also depends on the mass and the number of particles	thinkingbodyhighertemperature
Mistake	thinking that temperature increases when the number of particles increases. Correct: temperature measures the average kinetic energy and does not depend on the mass	thinkingtemperatureincreasesnumber
Mistake	forgetting to convert grams into kilograms or subtracting the wrong way in ΔT. Correct: change the mass to kg first and subtract the initial temperature from the final temperature	forgettingconvertgramskilograms
Mistake	thinking that heat moves from a cold body to a hot body by itself. Correct: heat moves naturally from the higher temperature to the lower temperature	thinkingheatmovescold

Internal Energy and Temperature · 6 / 7