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# ZingPath: Sound Interaction with Materials

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## Sound Interaction with Materials

Learn in a way your textbook can't show you.
Explore the full path to learning Sound Interaction with Materials

### Lesson Focus

#### Acoustic Environments

Physics

You get to expand your knowledge of waves by studying the interaction of sound waves with different materials.

### Now You Know

After completing this tutorial, you will be able to complete the following:

• Explain what acoustic means and the physics behind acoustic environments.

### Everything You'll Have Covered

What does it mean to say that a building has "good acoustics"?

~ For a building to have good acoustics, the sound coming from the source and the reflected sound must be balanced.

How are good acoustics achieved when planning the structure of a building?

~ To achieve good acoustics when planning a building, materials that have good sound absorption and good sound reflection properties are used. Seats and walls are covered with sound-absorbing materials. The shape and height of the building, the size of the stage, the incline of the auditorium, and the location of the listeners are all taken into consideration to achieve good acoustics.

Why are the Aspendos amphitheater in Antalya and the Sydney Opera House in Australia considered architecture with good acoustics?

~ The Aspendos amphitheater in Antalya and the Sydney Opera House in Australia are considered architecture with good acoustics because sound can be heard clearly even without the help of a sound system. The sound is reinforced because as the sound leaves the source, it combines with the sounds reflecting off the walls of the building.

a) When two acoustic waves meet, they ________.

~ Superpose

b) When an acoustic wave encounters a new medium or material different than the one it is traveling through, it is _________.

~ Refracted.

c) When an acoustic wave loses its amplitude for some reason, that means it has been ________ or __________.

~ Absorbed or attenuated.

d) When an acoustic wave encounters obstacles, it may be ________ from the obstacle.

~ Reflected.

### Tutorial Details

 Approximate Time 2 Minutes Pre-requisite Concepts Students should be able to define absorption of sound, acoustic, and environment. Course Physics Type of Tutorial Animation Key Vocabulary absorption of sound, acoustic, environment