Reflecting Sound Science Fair Projects

Sound Reflection

Materials that are able to reflect sound have many applications. They are used for sound proofing rooms and for making some rooms produce a better flow of sound.

Objectives/Goals

I am trying to figure out which type of wall material reflects sound the least.

Methods/Materials

We used three different sized rooms, a tape measure, a sound reader, drywall, Mahogany plywood, sound board, particle board, plaster wall and a CD player with a CD. We measured the sound of different boards at six, twelve and eighteen inches in three different rooms.

Results

The drywall was the board that reflected the least amount of sound.

Conclusions/Discussion

I found that the drywall was the board that actually reflected the least amount of sound. I will probably go around to different buildings that have different wall materials instead of using three different rooms that are all built of the same wall material. 3rd party contributor