Waves 1
A displacement of energy
Wave
The process of using echoes to locate objects
echolocation
What is the top of a wave called?
Crest
Pitch is: ___________________________
How high or low something is
The height of a wave
amplitude
DAILY DOUBLE!
Waves that need a medium
Mechanical waves
Does an electromagnetic wave have a medium?
NO
Fill in the blank: The greater the frequency, the higher the _______
Pitch
Number of waves in a time period
frequency
There are ______ parts in the ear.
Three
The process of using echoes to locate objects
Echolocation
What carries the sound to the brain
The Auditory nerve
Any material that carries a wave
medium
Is the AOI or the AOR the original light beam according to Snell's law
The AOI
Fill in the blanks: amplitude affects _______. The higher the amplitude, the _______ the sound is.
loudness; louder
Explain the Doppler effect
phenomenon in which you can tell from which direction a sound is moving
What are the three types of Mechanical waves?
transverse, longitudinal, and surface
The _______ gets bigger (dilates) and smaller according to how much light there is available
The Pupil
DAILY DOUBLE!
What are the three bones near the ear drum in your ear?
The hammer, the Anvil and the Stapes
Covers the pupil
Cornea
Define Snell's law
The angle of incidence (AOI)=Angle of revelction (AOR)
A lot of light= the pupil gets _______
A little bit of light= pupil gets _______
Smaller; bigger (dilates)
What is the fourth step in order for you to hear
Ear drums cause 3 bones to vibrate
What is the pupil?
A hole in the eyeball that lets light in.
What is the second step in order for you to hear
ear canal carries sound wave