What Causes Sound?
How does Sound Travel Through Different Materials?
How do we Hear Sound?
Why aren't All Sounds the Same?
What Tools Help us Hear Sound?
100
Energy you can hear; this is produced when energy causes particles to vibrate
What is sound?
100
The frequency of a sound wave determines a sound's ________________.
What is pitch?
100
Sound waves make the eardrum vibrate like the head of a drum
What is eardrum?
100
The distance from the beginning of one wave to the beginning of the next
What is wavelength?
100
A unit used to measure amplitude
What is decibel?
200
The back-and-forth motion of an object
What is vibration?
200
When an object vibrates, it causes air particles to bunch up and spread out which creates ________________.
What are sound waves?
200
High pitch = high _________________.
What is frequency?
200
The number of times a sound source vibrates in one second.
What is Frequency?
200
A unit used to measure frequency
What is hertz?
300
An area of crowded particles followed by an area of widely spaced particles
What is sound wave?
300
Sound travels fastest through ______________.
What are solids?
300
What do we use to hear sound?
What are ears?
300
The highness or lowness of a sound as determined by its frequency
What is pitch?
300
Small pieces of skin in a person's throat that vibrate
What is vocal cord?
400
The reflection of a sound wave
What is echo?
400
Sound travels slowest through _____________.
What is gas?
400
When your eardrum vibrates, it causes 3 tiny bones in the __________________ to vibrate.
What are middle ear?
400
The energy in a sound wave
What is amplitude?
400
Sound waves move away from the vibrating object in _______________________.
What are all directions?
500
For an object to begin vibrating to make a sound, the object requires ___________.
What is energy?
500
Sound travels slower through ____________ than gas.
What is liquid?
500
The part of you ear that collects sound waves.
What is outer ear?
500
How soft or forceful (loud) a sound is
What is loudness?
500
One way you can cause an object to vibrate is _______________.
What is plucking, clapping, blowing, hitting, or moving?
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