Show:
sound
uses of sound
parts of the ear
sound interactions
sound 2
100
What is sound?
a disturbance that travels through a medium
100
acoustics
What is the study of sound?
100
outer ear
What funnels sound into the ear?
100
Reflection
When sound bounces off a wall
100
decibells
What is the unit of loudness?
200
What type of wave is sound?
longitudinal
200
reverberations
What are echoes of sound waves?
200
ear drum
What gets vibrated by the sound waves entering our ears?
200
diffraction
What is it when sound bends around a barrier?
200
music
What is a pattern of notes that makes a pleasing sound?
300
it requires a medium
What do we mean by a mechanical wave?
300
echolocation
What is the method bats and dolphins use to find food?
300
hammer, anvil and stirrup
What are the three tiny bones that make up the middle ear?
300
interference
What is it when sound waves mix together?
300
wind instruments
What are flutes, clarinets and trombones?
400
On what does the speed of sound depend?
the medium
400
ultrasound
What is used to look at babies growth while the mom is still expecting?
400
cochlea
What is fluid filled inner ear called?
400
loudness
What is the perception of the energy of sound?
400
percussion instruments
What are drums and cymbals?
500
shorten or lengthen the strings
How can you change the pitch of a guitar?
500
sonar
What is used by ships to measure depth, and map the ocean floor?
500
hair cells
What part inside the cochlea gets the message to our auditory nerve?
500
pitch
What is the perception of the frequency of sound?
500
explains the change in pitch of a siren as it approaches us
Doppler effect?