Materials that do not transfer mechanical energy well. These tend to be soft, flexible, low density, and with high surface area to linear area ratios. Open cell foams and fabrics are among the best at absorbing sound.
Dirt?
solid
Each year, they rotated the kinds of crops planted
This was the time when weapons and materials were made from bronze because other materials were not available. Population also began to grow during this time period.
This seems like a question from an electrical course, and is probably best answered by your course materials.
Soft and porous materials, such as acoustic foam panels or carpets, absorb sound the best. These materials work by trapping sound waves as they hit the surface, preventing them from bouncing off and creating echoes.
clothes are the most absorber of sound
metal
Soft, porous materials like thick carpets, heavy drapes, and acoustic panels are effective at absorbing sound because they can dampen sound waves as they hit the surface. Additionally, materials with texture and irregular surfaces can help diffuse sound waves, reducing their ability to bounce back and create echoes.
the more smooth the surface is the better the sound is
The best sound absorbing materials on the market are acoustic foam panels, fiberglass panels, and soundproof curtains. These materials are effective in reducing noise levels by absorbing sound waves and preventing them from bouncing off surfaces.
glass wool
The best conductor of sound is generally considered to be solid materials, particularly metals like aluminum and steel. These materials have high density, stiffness, and speed of sound propagation, allowing them to transmit sound efficiently. Sound travels fastest through solids compared to liquids and gases.
To test which materials carry sound waves best for a science project, you can set up an experiment where you measure the sound transmission through different materials like metal, wood, plastic, and glass using a sound source and a decibel meter. Record the data and analyze which material produced the highest sound transmission. This will help you determine which material carries sound waves best.
Materials such as sponges, cotton, and paper towels absorb water the best due to their porous nature and ability to hold onto moisture.
carpets, curtains and wood are best at muffling sound carpets, curtains and wood are best at muffling sound
Solid materials like wood or metal generally transmit sound best due to their density and ability to propagate sound waves efficiently. In contrast, soft materials like foam or fabric tend to absorb sound rather than transmit it effectively.