20. Why does sound travel faster in warm materials compared to cold materials? * A. Particles of warm materials move faster compared to cold materials.
B. Particles of cold materials move faster compared to warm materials.
C. Particles of cold materials are further apart compared to warm materials.
D. Particles of warm materials are closer to each other compared to cold materials.
Answers & Comments
Answer:
A. Particles of warm materials move faster compared to cold materials.
Answer:
B
Explanation:
Particles of cold materials move faster compared to warm materials.