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Author Question: Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb ... (Read 28 times)

theo

  • Hero Member
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  • Posts: 698
on: Aug 28, 2018
Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb sound.
 
   True
   False
  Indicate whether the statement is true or false

Question 2

A smooth, dense wall of painted concrete:
 
   Reflects all the sound striking its surface
   Reflects only a small percentage of sound
  striking its surface
   Absorbs only a small percentage of sound striking
  its surface
   Absorbs all of the sound striking its surface


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fatboyy09

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Reply #1 on: Aug 28, 2018
Answer to Question 1

True

Answer to Question 2

Absorbs only a small percentage of sound
striking its surface


theo

  • Member
  • Posts: 698
Reply 2 on: Aug 28, 2018
Gracias!

Joy Chen

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Reply 3 on: Yesterday
:D TYSM

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