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Waves and Sound

A review of waves and sound.

Katharine Willis

on 19 October 2012

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Transcript of Waves and Sound

Waves travel fastest through solids.
Waves travel slowest through gases.
Waves travel through liquids faster than gases but slower than solids. Transverse Wave Longitudinal Wave Frequency: 2 Hz Frequency: 3 Hz Direction of disturbance: Direction of disturbance: Refraction, Reflection and Diffraction Reflection: Waves cannot travel through a barrier so they bounce back.
Refraction: Waves bend at an angle when they enter a new medium.
Diffraction: Waves spread out when they hit a partial barrier. Transverse vs. Longitudinal Waves The Differences Between Solids, Liquids & Gases Which state of matter do waves travel fastest through? Liquid Solid Gas How Temperature Affects a Medium's Ability to Transfer Sound The higher the temperature,
the faster sound will travel
through a medium.
Sound travels faster
in hot air
than in cold air. How Waves are Produced and Detected Air is pushed up from the lungs.
The vocal cords vibrate larynx.
Sound waves are produced.
Sound waves cause the ear drum to vibrate.
The vibrations travel through the hammer, anvil and stirrup to the inner ear.
Cells in the cochlea detect the vibrations and send a message to the brain. Why Sound Waves Are Different Than Most Sound waves are a vibration of matter
and do not travel through a medium
unlike light and radio waves,
which are electromagnetic waves. How Pitch is Related to Frequency The lower the pitch, the lower the frequency.
The higher the pitch, the higher the frequency. How to Increase the Intensity of a Wave The greater the amplitude, the more intensity the sound wave has and the louder the sound will be. The more energy a sound wave carries, the more intense it is. Low Intensity Wave vs. High Intensity Wave Examples
Water Waves
Seismic Waves Examples
Sound Waves
Tsunami Waves A high frequency wave with short wavelengths makes a high pitch sound. A low frequency wave with long wavelengths makes
a low pitch sound. High Intensity Wave Low Intensity Wave Waves and Sound by Jackson Willis
Full transcript