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lesson pretestMultiple Choice

Pretest

Question 1 • Physics

Which statement describes the relationship between energy and entropy in the universe?

Answer
A
Energy must be decreased for entropy to be constant.
B
Energy must be destroyed for entropy to be constant.
C
Energy must be created to increase entropy.
D
Energy must be added to decrease entropy.

Explanation

A decrease in entropy means a system becomes more ordered. This can happen locally when energy is supplied, though the surroundings gain entropy; the total entropy of the universe does not decrease. Energy is conserved, so it is not created or destroyed, making “Energy must be added to decrease entropy” the best choice.

AI-written and checked against the verified answer.

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