Origins of sound
What does sound need to travel through?
A medium.
What is reverberation time?
The amount of time it takes for a sound to disappear.
What are the 3 types of media?
Solid, liquid, gas.
What is pitch?
The frequency of the sound.
What is ideal to support infantry with?
Artillery and air support
What kind of wave is sound?
Longitudinal!
What is infrasound?
Sound below normal human hearing!
How do softer materials affect sound?
They absorb sound.
What is music?
Sound that is pleasing to the ears.
What's the B-17's nickname
the flying fortress
What does sound begin with?
A vibration.
These do not absorb sound?
Hard surfaces!
Denser mediums affect sound how?
They denser it is the slower it goes!
Brass instruments are made of what material?
metal or plastic
What's the name of the new US aircraft carrier?
USS Gerald R Ford
What is the classrooms decibel level with nobody talking?
30 decibels!
What are acoustics?
The study of sound.
Can sound travel through plutonium?
Yes'nt not/Yes
What are the four types of musical instruments?
String, Brass, Woodwind, and Percussion.
What was Josef Stalin's real name?
Iosef Beseriones DiJugashvili
Will sound travel faster in a 6000 degree piece of wood then a -60 degree piece of wood?
No, because the wood would be ash and ash is soft!
Acoustics are not used in...?
Space!
What 3 things does a medium use to affect the speed of sound, and what's an example of a medium that has them?
Temperature, elasticity, and density. All mediums
String instruments produce sound how?
By being rubbed/struck with a bow
What Aircraft Carrier did the Doolittle raiders fly from?
the USS Hornet.