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Sound Waves
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Sound Waves
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Sound Waves
Echoes are formed when sound
strikes a wall and reflects back
strikes a wall and is absorbed
hits the eardrum repeatedly
breaks
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Sound Waves
Sounds of birds and animals are
artificial
natural
man made
made electronically
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Sound Waves
Who discovered the ‘Korotkoff’ sounds?
Isaac Newton
Dr.Nikolai Korotkoff
Michael Faraday
Thomas Silva Edison
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Sound Waves
Some fishing boats use echo to
calculate the depth of water
detect any predator
detect shoal of fish
eggs of fish
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Sound Waves
The longer, the echo takes, the
shallower the water
the deeper the water
the denser the water
the warmer the water
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Sound Waves
One example of string instrument is
piano
drum
saxophone
trombone
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Sound Waves
The only thing of a note that can vary, is
amplitude
length
wave
type
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Sound Waves
Ships use echolocation to measure the
size of fish
density of water
depth of water
area of ocean
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Sound Waves
The mixture of high and low sounds is called a
rhythm
bass effect
beat effect
wow effect
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Sound Waves
The denser the solid, the
more the speed of sound
less the speed of sound
more clear the sound
less clear the sound
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