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What is an electronic device used to visualize sound waves?
Cathode Ray Oscilloscope
What is a vacuum?
A space where no particles of matter exist
sounds range in which humans can hear
20-20000 hertz
Whai is a system that uses reflected sound waves to detect and locate objects underwater
Sonar (Sound Navigation and Ranging)
a picture of the human body using ultrasound
sonogram
Human can hearing range
20 - 20,000Hz
Sound navigation and ranging-which measures the time it takes for sound to travel to the ocean bottom and back.
sonar
Sound waves need to travel through a medium, or material. True or False?
True
Unit of measurement of frequency
Hertz
Sound is caused by ...
Vibration
The speed of sound travels FASTEST in which medium?
Solid
The speed of sound travels SLOWEST in which medium?
Gas
You can hear a scream in outer space. True or False?
False, Sound wave need medium
How high or low a sound is called the ....
Pitch
An increase in amplitude will result in volume going down. True or False?
False. It will go up
A sound that is repeated because the sound wave reflected or bounced back from a distant object.
echo


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