Sound Waves Flashcards
1
Q
How do humans make sounds
A
we have two falps across our windpipe (trachea)
2
Q
what does our trachea do
A
they vibrate when air passes across them
3
Q
what is speed
A
speed is how far something travels in a certain amount of time
4
Q
how is speed mathematecally written
A
speed = distance over time
5
Q
how are sound waves produced
A
when an object vibrates, creating a pressure wave
6
Q
how are sound waves caused
A
Vibrating objects
7
Q
the volume of sound can be measured in what
A
decibels
8
Q
why does the human ear get damadged if it hears over 120dB
A
it can wip out our myelin sheath which is a protective coat around our ear
