Waves
A single doorbell tone can be described as this
a simple wave
A pressure within a system that is greater than the environment that surrounds that system
Positive Pressure
M= volume x density
Simple harmonic motion can be described using these three parameters
Frequency, Amplitude, and Phase
This (A sin (2ft +φ)) is the formula for what
Sine Wave
This is the constant value for speed of sound in air
~ 33,600cm/s or ~1100ft/s
Formula for stiffness
k = force/meters
Elasticity
This type of wave would be generated from a hydroflask dropping in Cheney
Complex Wave
This pressure is measured by regarding as zero the atmospheric pressure. It is expressed as the difference in pressure relative to atmospheric or barometric pressure and preceded by a minus sign
Negative Pressure
Formula for Sine Waves
A sin (2ft +φ)
Wavelength and frequency are related in this way
inversely
A car horn would be described as this type of wave
simple wave
This is defined as the range of frequencies between the two 3-dB-down points on either side of the peak energy.
bandwidth
Formula for wavelength
λ= c/f
Distance from a particular crest to the next can be described as this
wavelength
This is a visual representation of an audio or electrical signal that charts the amplitude or strength of a signla, over time
An instrument for analyzing sound into its frequency components.
sound spectrograph
Formula for pressure
P=F/A
This is a simple mechanism consisting of a mass labeled M, a spring labeled K, and a fixed surface to which the spring-mass assembly is attached.
Spring-Mass Model of Resonance