Page 73 - Science Course 3 (Book 2)
P. 73
Mo10-L4a: How are Sound Waves Produced?
Wavelength is the distance between a point on a
wave and the nearest point just like it.
Wavelength
Frequency is the number of wavelengths that pass a
given point in 1 second.
Unit of measure : hertz (Hz)
Compression
Wavelength Wave motion
Compression
Wavelength
Rarefaction
amplitude
power
Time
Key Concept
How are Sound Waves Produced?
one osoillation
How do vibrating objects produce sound waves? (frequency is
number of
ossoillation per
second)
Speeds of Sound Waves
The speed of a sound wave depends on the material
in which it travels.
Sound waves usually travel faster in solids than in
liquids or gases.
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