Essential Physics - Waves and Sound
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.