Properties
Traveling Through the Properties
Echoes and Oscilloscope
Soundwaves
Milestones
100
Sound moves in _____(5 words).
What is waves
100
Matter that supports the sound.
What is medium.
100
Echoes arrive ____ the initial sound.
What is after.
100
Soundwaves are invisible. T/F
What is a False
100
Inventor of the telephone.
What is Alexander Bell.
200
What forms of matter do sound travel through.
What is solids, liquids, gases, plasma.
200
Does sound move faster in solids, liquids, or gases?
What is solids.
200
Echoes are reflected off _______ ____________.
What is hard surfaces.
200
The higher the frequency, the ________ the wavelength.
What is shorter
200
Where is sound?
What is everywhere
300
Speed of sound does not change according to the property it is traveling through. T/F
What is False
300
Sound is transmitted through _______.
What is particles (atoms or molecules).
300
Machine that provides a visual record of the voltages of an electrical signal.
What is a oscilloscope.
300
How soundwaves travel.
What is moving through molecules in the air.
300
When was the telephone invented? A. 1975 B.1875 C.1675 D.1775
What is B. 1875
400
Speed of sound. m/sec
What is 340.29 m/sec About 340 m/sec
400
Why does sound travel faster than some forms of matter and not as fast in other forms of matter?
What is particles more fixed together.
400
On an oscilloscope, the sound waves are trasfered to ________.
What is electricity.
400
Distance between one compression and the next compession.
What is a wavelength.
500
Frequencies human hearing is normally limited to. Between ____ to ____. Remember to include units.
What is 12 Hz to 20,000 Hz (Hertz).
500
Area that has no matter.
What is a vacuum.
500
Can you hear an echo off a curved wall?
What is no
500
Use of soundwaves.
What is to make sound travel (so we can hear).
500
Person to make the oldest recording of sound.
What is Edouard-Leon Scott de Martinville
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