Post-UTME Physics 2016 Objective — Question 3
Question 3 of 20 from the Post-UTME Screening (Post-UTME) Physics 2016 Objective paper, with the correct answer and a full explanation.
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According to the kinetic theory of matter, when temperature increases, molecules of solids will
- A. contract and occupy larger space
- B. remain steady in their mean positions
- C. collide randomly with one another
- D. vibrate faster and occupy larger space.Correct
Explanation
Increased temperature gives molecules more kinetic energy, causing them to vibrate faster and occupy a slightly larger space (thermal expansion).
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