Essential Physics - Waves and Sound

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microphone

A device for converting sound waves in air into electrical signals is called a _______.

fourier's theorem

A graphical representation of sound and its various frequency contributions is called a _______.

frequency spectrum

A graphical tool for showing what oscillations are present in a wave is called a _______.

pitch

A musical note "B" differs in _______ from the note "C."

echo

A piano and guitar playing the same fundamental tone will have different relative contributions of each _______ in their sound.

decibel

A sound that is 90 _______ is louder than an 80 _______ sound.

supersonic

An airplane that is moving at 600 m/s is undergoing _______ motion.

beats

Sound reflected off the other side of the canyon, allowing Rosabella to hear a/an _______.

phase

When applying _______ to analyze the same note played by a piano and a flute, you can see that each has different contributions from higher frequency sounds.

doppler effect

When the sound of an approaching train is higher in pitch than the sound of a receding train, this is an example of the _______.

harmonic

When two sounds of nearly the same frequency are played at the same time, the sound waves drift in and out of _____, causing beats.


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