Ask Question
12 February, 00:56

Roads often have to be repaved because they crack over time. Sometimes this cracking is due to the fact that the roads (as well as other objects) have a tendency to expand when heated and contract when cooled. Thermal expansion and contraction are examples of

A.

physical and chemical changes.

B.

physical changes.

C.

chemical changes.

D.

neither physical nor chemical changes.

+5
Answers (1)
  1. 12 February, 02:04
    0
    B. Physical Change - T he molecules do not change shape or size. They do not contract or expand only.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Roads often have to be repaved because they crack over time. Sometimes this cracking is due to the fact that the roads (as well as other ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers