Which term describes waves passing through a material?

• A. When waves pass through a material.
• B. The reflection of waves off a surface.
• C. The bending of waves as they enter a new medium.
• D. The absorption of waves by a material.

Answer: (A)

Transmitting waves through a material is about the energy moving through rather than bouncing back, bending, or being absorbed. The term for this process is transmission, and the option that describes it—“When waves pass through a material”—captures the idea of waves continuing through the substance. Reflection would mean the waves bounce off a surface, refraction is the bending that happens at a boundary due to a change in speed, and absorption is energy taken up by the material. So this option aligns with the concept of transmission.