Science-physics Flashcards
(26 cards)
Amplify meaning
To increase the amplitude of sound
Audible range meaning
Range of frequencies you can hear
what is compression part of
part of longitudinal wave where particles are clsoe
Incident wave meaning
wave coming from a light source
Infrasound meaning
sound below frequency of 20 Hz
Ossicles meanign
the small boned of the middle ear
What is Rarefraction part of?
part of a longitudinal wavae
Reverberation meaing
persistence of a sound for a longer perio than usual
Superpose meaning
When waves join together
Vacuum meaning
a space in which there isn’t any matter
A wave is an _________or _______ that transfers ______
osccilation,vibration,energy
How is sound produced
it’s produced by vibrations which make air molecules osscilate
What di you use to measure sound
Decibels(dB)
Job of the pinna
Directs sound to auditory canal
What does the auditory canal do
Sound travels through it to reach the eardrum
What does the eardrum do
Passes vibrations to the ossciles
What does the ossicles do?
amplify sound
What does the cochlea do
Sound makes hairs move
Job of the semi circular canals
Helps you keep balance
3 features of a wave
Amplitude,frequency,wavelength
Waves _____ off surfaces and barriers this is called _________
Bounce,reflection
What does sound travel through
Sound needs a medium like solid,liquid,gas to travel through
Speed of sound
340 m/s
What does the pitch of a note depend on
The frequency
