Ear
what pitch are sound waves that are far apart?

Low pitch
How is Decibel abbreviated?
dB
What pitch are sound waves that are close together?

High Pitch
How is Hertz abbreviated?
Hz
Which section of the ear contains the cochlea, hair cells, and hearing nerve?
The Inner Ear
A tuba gives what type of pitch (high or low)?
Low pitch
What part of the ear is this?
Hair Cells
Frequency is measured in what unit?

Hertz
What are the white marks on this picture showing us?
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Sound waves
A train whistle coming towards you vs a train whistle moving away from you. How does the pitch change and why?
coming towards = higher, closer together
moving away = lower, farther apart
What do ships use to identify items at the bottom of the ocean?
Sonar