Vocabulary and Concepts to Know:

amplitude
which materials are best for carrying sound and which are worst?  (think about the gongphone lab)
The speed of sound (m/s)
pitch
Why can sound not be heard in a vacuum?  (think about the alarm clock in the bell jar demo)
What is sound?
sound is fastest in ____ and slowest in ______  (solid , liquid, gas)
What is resonance?
what is ultrasonic sound and how does it compare to infrasonic sound?
What are the parts of a sound wave? Be able to recognize them, and analyze and compare them
What do loud/soft, high/low frequency sounds look like on an oscilliscope?  (think of the little wave picture worksheet you did)
What is a decibel?  (dB)
What kinds of sounds are generally over 85 dB's and can cause permanent damage to your ears?
How could hearing loss effect the survival of the Kangaroo rat?  (think about the sound sense video we saw)
How does fork length relate to the frequency produced by a tuning fork?
Know how to use the speed of sound equation and its various forms  (ex. be able to solve for frequency)
Know all the parts of the ear, where they are found, what they look like and what they do.
Know the order in which parts of the ear work to ultimately produce the sensation of hearing in your brain
What are Hertz and what do they measure?
What is the definition of a wave?
How are waves produced?  (key words here are "energy", "medium", and "vibrate")
Reflection
Refraction
interference
antinodes
What effects the speed of sound?
What is elasticity?
What is Chuck Yeager famous for?
What is the Doppler effect?
What is echolocation and what animal uses it very well?
What type of sound is used to make a sonogram?  (means sound drawing- used to "see" babies in the uterus)
At what level of loudness (dB) do sounds become painful to humans?