This attribute of a wave determines the pitch of a sound
What is "frequency"?
100
The lowest harmonic (1st harmonic), is also called this
What is the fundamental frequency?
100
The distance between 2 troughs of a wave
What is wavelength?
100
Exceeding the speed of sound and tearing through one's own sound waves
What is a sonic boom?
100
A type of wave in which the propagating motion is radial outwards in all three coordinate directions. (vocabulary word, not an example)
What is a spherical wave?
200
Sound can be described as these two types of waves.
What are mechanical and longitudinal?
200
The 6th harmonic of the fundamental frequency, 50 Hz
What is 300 Hz?
200
Relationship between frequency and period of a wave.
What is inverse?
200
The number of nodes in the standing wave representing the 3rd harmonic on a string.
What is 4?
200
Type of wave in which particle motion is perpendicular to direction of wave (vocabulary word, not an example)
What is transverse?
300
Sound travels fastest through this state of matter because...
What is solid because the particles are close together and can transmit the vibration right away.
300
an integer multiple of the fundamental frequency
What are harmonics?
300
Constructive interference occurs when crests and troughs occur on ______________ of the equilibrium line.
What is "the same side"?
300
A device which both amplifies sound and creates timbre in musical instruments
What is a sound box?
300
Wave that does not need a medium.
What is an electromagnetic wave (examples: light, x-rays, UV, microwaves, radio waves)
400
The decibel level of a sound with an intensity of 1.0 x 10^-9 W/m^2.
What is 30 dB?
400
The term used to describe the mixing of various harmonics to create an instrument's characteristic sound
What is timbre?
400
This occurs when 2 (or more) waves are set up at the same time, in the same medium, at the same wavelength, frequency, and amplitude.
What is a standing wave?
400
The pilot of a jet producing a sonic boom (does) or (does not) hear the sonic boom his plane is creating.
What is "does not"?
400
A point on a standing wave that does not move, or a point of complete destructive interference
What is a node?
500
An observer to the Doppler Effect would experience this as a fire engine goes by with its siren on.
What is an increase in pitch as the fire engine approaches, normal pitch as it passes, and a lower pitch as it moves away?
500
the fundamental frequency of the 9th harmonic, 900 Hz
What is 100 Hz?
500
A type of wave used for imaging, treatment, communication, and navigation... (just to name a few)
What are ultrasound waves?
500
2nd and 3rd harmonics on a guitar string if the fundamental frequency is 320 Hz?
What are 640 Hz and 960 Hz?
500
The response of a standing wave to a vibration nearby. Examples: singer can shatter a glass by matching natural frequency of glass, rattling in car or in windows as response to road vibrations, Tacoma Narrows Bridge