List of Topics

SfC Home > Physics > Wave Motion > Sound Waves >


Mini-Quiz: How Obstacles Affect Sound Waves

by Ron Kurtus

Take this Mini-Quiz to check your understanding of the lesson material.

1. Why would less sound be reflected off a rough or porous surface?

The sound may be reflected multiple times by the porous surface

Rough surfaces may distort the sound waves

Porous materials usually are not very flat

2. If a material absorbed much of entering sound, what would happen to its temperature?

Nothing since it is absorbing sound and not heat

The temperature would go down because the sound filters out all the heat

The temperature would rise since some sound energy is turned into heat energy

3. Why can you hear low frequencies better through a wall than high frequencies?

Low frequencies are absorbed more in the wall than high frequencies

Low frequencies start off being louder

Low frequencies are not absorbed as much as high frequencies

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

Prove yourself valuable to your friends

Resources and references

Ron Kurtus' Credentials

The following resources provide information on this subject:


Atmospheric Sound Absorption Calculator - Calculate how much sound is absorbed in atmosphere under different conditions

Reflection of Sound - From Non-destructive Testing (NDT) Resource Center

Physics Resources


(Notice: The School for Champions may earn commissions from book purchases)

Top-rated books on Sound Waves

Share this page

Click on a button to bookmark or share this page through Twitter, Facebook, email, or other services:


Students and researchers

The Web address of this page is:

Please include it as a link on your website or as a reference in your report, document, or thesis.

Copyright © Restrictions

Where are you now?

School for Champions

Physics topics

Mini-Quiz: How Obstacles Affect Sound Waves

Sound Waves

Characteristics of sound

Creating sound

Detecting sound


Also see

Let's make the world a better place

Be the best that you can be.

Use your knowledge and skills to help others succeed.

Don't be wasteful; protect our environment.

You CAN influence the world.

Live Your Life as a Champion:

Take care of your health

Seek knowledge and gain skills

Do excellent work

Be valuable to others

Have utmost character

Be a Champion!

The School for Champions helps you become the type of person who can be called a Champion.