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hyperphysics

Diffraction of Sound

An interesting site, with good diagrams, explaining how sound can be diffracted and how this affects what you hear.

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Waves, sound & acoustics

This site gives an overview of the physics of sound through a series of links to relevant articles.

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Hits: 1783

hyperphysics

Ultrasonic Sound

Talks about the use of ultrasound, sound at frequencies above audible.

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Hits: 1174

Introduction to what sound is

A few pages that have interactive elements to demonstrate what sound is.

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Hits: 372

Buzz like a bee

A fun activity about sound and vibrations to make a little toy that makes a sound like a bee. All you need is a two lollipop sticks, a rubber band, some card and some string.

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Hits: 13

hyperphysics

Interference of Sound

A good explanation of how sound waves can interfere and affect what you hear. Includes details of a demonstration with a tuning fork.

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Hits: 1301

What is sound?

An explanation of sound and how it relates to space.

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Hits: 1939

Beat frequencies

When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is ...

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Hits: 1692

Why do sound waves transmit farther at night?

A simple explanation of why sound travels long distances at night. There are some attractive graphics.

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Hits: 2103

hyperphysics

Reverberation Time

The reverberant sound in an auditorium dies away with time as the sound energy is absorbed by multiple interactions with the surfaces of the room.

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