Term

Definition
Particle oscillation is perpendicular to wave propagation
ex. Light waves 


Term

Definition
Particle oscillation is parallel to the wave propagation
ex. Sound waves 


Term

Definition


Term

Definition


Term
Principle of Superposition 

Definition
When two waves interact it causes the resultant wave to have an amplitude equal to the sum of the 2 waves 


Term
Constructive Interference 

Definition
When 2 waves are perfectly in phase (0^{o} or 360^{o}) the resulting amplitude is 2x the amplitude of the waves 


Term

Definition
When 2 waves are perfectly in phase (180^{o}) the resulting amplitude is zero since the amplitude of the waves will cancel each other out 


Term
How does sound waves change as they pass through different mediums? 

Definition
Sound travels fastest through a solid and slowest through a gas 


Term

Definition
fo=fs(v±vov∓vs)
f =fo(v±vdv∓vs)
:where f_{o} is the emitted frequency 


Term
Sign Convention of Doppler Effect Equation 

Definition
If object is moving away from the other object: Use bottom sign
If object is moving towards other object: Use top sign 


Term

Definition


Term

Definition
Β=10 log(I/I_{o}) :where I_{o} is the threshold of hearing with a value of 1e12 W/m^{2}(dB) 


Term
Change in Sound Level Equation 

Definition
Β_{f}=Β_{i}+log(I_{f}/I_{i}) 


Term
Length of Standing Waves: Strings 

Definition
L=n(λ/2): where n is the harmonic number (#of antinodes/halfwavelengths) 


Term
Wavelength of Standing Waves: Strings 

Definition


Term
Wavelength of Standing Waves: Strings 

Definition
λ=2L/n :where n is the harmonic number (# of antinodes/halfwavelengths) 


Term
Frequency of Standing Waves: Strings 

Definition
f=nv/2L :where n is the harmonic number (# of antinodes/halfwavelengths) 


Term
Length of Standing Waves: Open Pipes 

Definition
L=n(λ/2) :where n is the harmonic number (# of nodes/halfwavelengths) 


Term
Wavelength of Standing Waves: Open Pipes 

Definition
λ=2L/n :where n is the harmonic number (# of nodes/halfwavelengths) 


Term
Frequency of Standing Waves: Open Pipes 

Definition
f=nv/2L :where n is the harmonic number (# of nodes/halfwavelengths) 


Term
Length of Standing Waves: Closed Pipes 

Definition
L=n(λ/4) :where n is the harmonic number and can only be odd number 


Term
Wavelength of Standing Waves: Closed Pipes 

Definition
λ=4L/n :where n is the harmonic number that can only be odd numbers 


Term
Frequency of Standing Waves: Closed Pipes 

Definition
f=nv/4L :where n is the harmonic number that can only be odd numbers 

