WHAT IS SOUND?
Sound is a type of this.
➡️ Energy
What type of motion creates vibrations?
Back-and-forth motion
What type of wave is sound?
Longitudinal
Name the outer ear.
Auricle
Music is sound in patterns that are
Pleasing
Sound is created when something does this.
➡️ Vibrates
How does the strength of a vibration affect loudness?
Stronger vibrations create louder sounds
The unit to measure sound
Decibel
What is the name of the ear drum.
Tympanum
Name the three groups of instruments
Wind, percussion, string
We hear sound when vibrations reach this part of the body.
Ears
How does vibration speed relate to pitch?
Faster vibrations produce higher pitch
Another word for loudness is
intensity
Name the three ear bones.
Malleus, incus, stapes
Increasing loudness is the sound quality called
resonance
True or False: You can see sound with your eyes.
False
Why do smaller instruments often produce higher sounds than larger ones?
They vibrate faster
gas, liquid, solid
The hairs in your ears change vibrations into what?
Electrical signals
The study of sounds interacting is called
acoustics
Sound travels as this.
Waves
For higher pitch there must be a higher.....
What type of substance does sound travel better in: low density or high density?
high density
Name the nerve that sends sound signals to the brain.
Vestibular cochlear nerve
What are echoes called if the sound source is no longer making sound waves ?
reverberation