Sound Waves
Sound waves are longitudinal waves that can travel through any type of matter, but not through a vacuum.
The speed of sound is different in varying materials generally it is slowest in gasses, faster in liquids and fastest in solids. The speed of sound depends somewhat on temperature, especially in gasses.
The speed of sound is different in varying materials generally it is slowest in gasses, faster in liquids and fastest in solids. The speed of sound depends somewhat on temperature, especially in gasses.
Doppler Effect
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This video explains what the Doppler Effect is and how it works.
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