What Are Waves?
Properties of Waves
Sound
The Ear
100
Name the three types of waves
Surface Transverse Longitudinal
100
What property measures the height of the crest or trough?
Amplitude
100
Sound travels as a __________________ wave?
Longitudinal
100
Name the three sections of the ear
Outer ear Middle ear Inner ear
200
A mechanical wave requires that the wave travel through a ______________?
Medium
200
What property measures the distance between two corresponding parts of the wave?
Wavelength
200
What three factors affect the speed of sound?
Temperature Density Stiffness
200
The _______________ is a route for sound waves to travel along until it reaches the eardrum.
Ear canal
300
Look at Figure 1. What type of wave is it? Label A and B.
Transverse A- Crest B-Trough
300
The number of waves that pass a given point in a certain amount of time is called ______________?
Frequency
300
The change in frequency of a wave as its source moves in relation to an observer is called ________________
The Doppler Effect
300
The _____________ vibrates when sound waves hit it and passes along the vibrations to the middle ear.
Eardrum
400
Look at Figure 2. What type of wave is it? Label A and B.
Longitudinal A- Compression B- Rarefaction
400
How far the wave travels in a given amount of time is called ______________?
Speed
400
How high or low a sound seems to a person
Pitch
400
Name the three small bones in the middle ear.
Hammer Anvil Stirrup
500
Look at Figure 1 and 2. Name the mediums.
Figure 1- rope Figure 2- slinky
500
Look at Figure 3. Label A and B.
A- Amplitude B- Wavelength
500
The awareness of the energy of a sound
Loudness
500
The fluid in the __________________ vibrates and causes the auditory nerve to send messages to the brain.
Cochlea
M
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