Properties of Waves
Sound
Vocabulary
How Hearing Works
Use Your Brian
100
The distance from the top of one wave to the top of the next wave
What is wavelength
100

Sound can be produced by flat surfaces called _________________

What is Diaphragm

100
A wave's bouncing off a surface is called ______________
What is reflection
100
It catches the sound waves and funnels them inward to the eardrum
What is outer ear
100
While hiking, Brian called his friend's name loudly. What might he hear when the sound waves bounce off the smooth surface of a cliff?
What is echo
200

Two types of wave forms (not shapes)

What are standing and longitudinal

200
Two properties of sound
What are pitch and intensity
200
Stops sound waves from reflecting or traveling any farther
What is absorption
200
The sound waves make your ______ vibrate
What is eardrum
200
Which instrument plays at a higher pitch, bass or violin?
What is violin
300
When the wave peaks are close together, the sound has a _____________ pitch.
What is high
300

Sound can travel through air and ____________

What is water

300
A measure of how loud or soft a sound is
What is intensity
300
Bones pass vibration to a snail-shaped organ called ____________
What is cochlea
300
A musical instrument has 5 strings. The thickest string is on the left, and the strings get thinner to the right. Which string will produce the lowest note?
What is string on the left
400
Sound waves with high amplitude make ______________ sound
What is loud
400
The unit most often used to measure the intensity of a sound
What is decibel
400
The number of waves that pass in a second
What is frequency
400
Cells inside cochlea change vibrations into ___________________
What is nerve signal
400

As people get older, some of the cells in their cochleas die off. How might that affect their hearing?

What is losing hearing

500
You can use _____________________ to measure sound waves
What is oscilloscope
500

This converts waves into sound

What is brain

500

Sound frequencies too low for human hearing

What is infrasonic

500
Nerve signals from cochlea travel along another nerve to ______________________
What is your brain
500

Peyton is standing at her front door. Her friend Omar is five houses down the street. Peyton yells, "Omar!" How is the sound of Peyton's voice transmitted to Omar?

What is the vibrations of air molecules between Peyton and Omar

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