sound Flashcards
how to find frequency
1/time or period
how to find speed
distance/time
how to find wave speed
frequency x wave length
how to find depth
1/2 x distance
<20Hz
infrasound
20Hz-20000Hz
audible sound
> 20000Hz
ultrasound
tera (T)
10^12
giga (G)
10^9
mega (M)
10^6
kilo (K)
10^3
centi (c)
10^-2
milli (m)
10^-3
micro (μ)
10^-6
nano (n)
10^-9
y-vs-x graph
displacement-position
y-vs-t graph
displacement-time
define echo
reflection of sound
unit for frequency
Hz
meaning of pitch
the feeling of “high” or “low” that is linked to the frequency of the sound
define reverberation
Reverberation is multiple reflection of sound that occur due to the sound waves bouncing back and forth between the walls of a room
amplitude
the loudest of a sound wave (the highest point in y in a graph)
what helps absorb sound
curtains and carpets
what is transverse wave?
a curve line graph
the particles in the medium move up and down perpendicular to the direction travel of the wave
what is longitudinal wave?
the particles in the medium moves to and fro in the same direction travel as the wave
what is wavelength
the length of one complete cycle
what is period
the time take to complete one cycle
what is frequency
the number of cycle per second
why too much reverberation can be a bad thing?
speeches cannot be heard
what is amplitude?
the highest point of graph
