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What is Sound Muffling Materials Investigation about?

This document discusses ways to muffle or reduce unwanted sounds. It begins by asking students to think of situations where keeping sound out is important, like near factories, streets, or airports. Some ways to muffle sound mentioned include wearing ear defenders, covering ears, and using thick walls. The document then discusses how loud sounds can damage hearing and how workers in noisy places like factories need protection. Common protective devices are earmuffs and earplugs, which work by absorbing vibr

Author

adil wijaya

Language

EN