5
lesson pretestMultiple Choice

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Question 5 • Physical Science

Which best describes thermal energy?

Answer
A
It is the sum of internal energies of two or more substances.
B
It is the difference between internal energies of two or more substances.
C
It is the portion of internal energy that can be transferred from one substance to another.
D
It is the portion of potential energy that can be transferred from one substance to another.
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Which best describes thermal energy?