Sound Waves
A quick back and forth movement.
What is a vibration.
The distance between two troughs or two crests.
What is a wavelength.
What does the ear drum do?
It vibrates and carries the sound wave.
What is a compression?
Particles close together in a wave.
When was the solar system created?
4.6 billion years ago
How high or low a sound is.
What is pitch.
A sound wave is what type of wave?
What is compressional/longitudinal.
What part of the ear is the pinna a part of?
The outer ear
What is a rarefraction?
When particles are spread apart in a wave.
Which planet has lower gravity, Earth or Mars?
Mars
Sound is measured by this.
What is a decibel.
The distance between the resting point and the crest.
What is amplitude.
What does the auditory nerve do?
Brings signals to the brain so you can interrupt what you are hearing.
What is the amount of energy that the wave carries? (amplitude, frequency, or wavelength)
What is amplitude (energy)
What produces the majority of oxygen on earth?
Oceans
Three mediums sound can travel through.
What is gas, liquid, and solid.
The number of wave cycles that pass a given point in a certain amount of time.
What is frequency.
What is the part of the ear that helps with balance?
Inner ear.
How do you measure frequency?
Hertz (hz)
How many bones do adults have in their body?
206
Sound travels best through this.
What is a solid.
Particles move back and forth (or side to side) in this type of wave.
What is a longitudinal wave.
What are the 3 bones in the ear?
Hammer, anvil, and stirrup.
What waves transfer
What is energy
What animal has more vocal chords, a cat or a dog?
A cat! (100) dogs only have 10