What are Waves?
Mechanical Waves require this to travel through.
What is a Medium?
Why is your ear shaped the way it is?
To better receive sound waves.
What part of Mechanical Waves determine how loud soubd is?
Amplitude.
Crest to Crest, or Trough to Trough.
What is the name of outside skin of your ear that is also responsible for its shape?
Pinna.
What unit do we use to measure Loudness?
Decibels
What are the 4 main properties of Mechanical Waves?
Amplitude, Wavelength, Frequency (Pitch), Speed.
What part of your ear is most likely to receive damage from listening to music too loud?
Eardrum.
What is the Decibel threshold of hearing damage/pain?
120 dB
What is the Equation to measure the Speed of a Wave?
velocity = Wavelength(Lambda) X Frequency
What are the names of the 3 bones in your middle ear?
Hammer, Anvil, Stirrup.
A normal conversation is how loud? (Decibels)
40-50 dB
What is the Speed of a Wave that has a Frequency of 40 Hertz and a Wavelength of 80 Meters?
3,200 m/s
What part of the ear is connected to the Auditory Nerve? What does it have to receive sound?
Cochlea and it has little Hair Rececptors.
Explosions make a compress sound wave that is the main cause of damage. What is this wave called?
Shockwave