Question

exam lesson name: states of matter
exam number: 700698rr
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question 11 of 20 :
select the best answer for the question.

1. it might not be visually apparent, but solids such as metal change their volume with temperature. this is known as

○ a. density.
○ b. nuclear fusion.
○ c. floating.
○ d. thermal expansion/contraction.
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Explanation:

To solve this, we analyze each option:

• Option A: Density is mass per unit volume, not related to volume change with temperature. Eliminate A.
• Option B: Nuclear fusion is a nuclear reaction, not about volume - temperature change in solids. Eliminate B.
• Option C: Floating is about buoyancy, not related to volume change with temperature. Eliminate C.
• Option D: Thermal expansion/contraction is the phenomenon where materials (including solids like metals) change their volume (or length, area) with a change in temperature. This matches the description in the question.

Answer:

D. thermal expansion/contraction