Question

which type of surface is best for absorbing sound waves?

rock
glass
foam
plastic

Answer 1

Foam is the best surface among the options listed for absorbing sound waves. Foam materials, particularly acoustic foam, are designed to reduce sound reflection and minimize echo by absorbing sound waves effectively. This makes them ideal for use in recording studios, home theaters, and other environments where sound control is important. Rock, glass, and plastic are generally more reflective and do not absorb sound as well as foam.