Waves Flashcards
Define medium
the substance/material in which a pulse pr wave will move
Define Transverse pulse
a pulse which particles move perpendicular to the medium
What is amplitude?
The maximum disturbance of a particle from its equilibrium.
when the crests of two pulses overlap and result in a BIGGER pulse?
Constructive interference
when the crests of two pulses overlap and result in a SMALLER pulse?
Destructive interference
what is the wavelength
the distance betweeb any two adjacent points that are in phase
What is a longitudinal wave?
A wave where the particles in the medium move parallel to the propagation of the wave
true or false:
compression is when the particles are closest together
true
true or false:
regression is when the particles are closest together
false
What does SONAR stand for?
SOund NAvagation Ranging
TRUE or FALSE:
Higher pitch = Lower frequency
false. higher pitch = higher frequency
TRUE or FALSE:
The human ear can hear sounds of 20Hz to 20kHz
true
TRUE or FALSE:
Loudness is determined by wavelegnth
false. its determined by amplitude
TRUE or FALSE:
Two sound with the same frequency can have totally different sounds.
true
TRUE or FALSE:
Ultrasound has high frequencies and long wavelengths
false. short wavelengths
