Show:
NATURE OF SOUND
PROPERTIES OF SOUND
MUSIC
HOW YOU HEAR
USING SOUND
100
Sound waves bounce off surfaces.
What is reflection?
100
This is the name for the human voice box.
What is the larynx?
100
The study of the way sounds bounce off surfaces and bump into each other.
What is acoustics?
100
The most common cause of hearing loss.
What is aging?
100
Bats and dolphins use this to navigate and find food.
What is echolocation?
200
Sound travels fastest in this state of matter.
What are solids?
200
The name of the unit in which sound wave frequencies are measured.
What Hertz (Hz)?
200
All instruments that you blow are in this family or group.
What is a wind instrument?
200
The eardrum is the end of this main division of the human ear.
What is the outer ear?
200
Sonar devices send out this type of wave.
What is ultrasound?
300
Sounds that are too high for humans to hear.
What are ultrasound?
300
The unit is used to measure the loudness or volume of a sound.
What is a decibel?
300
This is the part of a clarinet vibrates to produce sound.
What is the reed?
300
Putting objects in your ears, even to clean them, can cause this.
What is injury?
300
This "picture" is created by ultrasound imaging.
What is a sonogram?
400
The spreading and bending of sound waves.
What is diffraction?
400
Unlike light waves, sound waves need this to travel.
What is a medium?
400
In wind instruments, you change the pitch in this way.
What is changing the length of the air column.
400
These small hearing devices act as an amplifier.
What are hearing aides?
400
Sound-waves having a frequency below the audible range, that is, below 16Hz.
What is infrasound?
500
Sound waves are this type of wave.
What are longitudinal waves?
500
An increase in the energy used to produces a sound causes an increase in this.
What is loudness or volume?
500
Instruments that are shaken or hit belong to this group.
What are percussion instruments?
500
This snail-shaped cavity contains more than 10,00 tiny hair cells.
What is the cochlea?
500
The change of frequency of a wave as its source moves in relationship to an observer.
What is the Doppler Effect?