Types of sound
what is echolocation
the sending and recieving of sound echos
Sound waves cannot travel through this because there are no particles to carry the vibrations.
What is space (or a vacuum)?
The property of a sound wave that determines how high or low a note sounds.
What is pitch?
This portion of the human anatomy creates sound
vocal cords
give one animal that uses echolocation and one manmade thing
bats or dolphins
boats or submarines
Sound waves are an example of this type of wave, where vibrations move in the same direction as the wave.
What is a longitudinal wave?
This term describes the height of a sound wave and is directly related to loudness.
What is amplitude?
where are vocal cords located
top of the larynx
what is the field of using ultrasonic waves to create images called
sonography
Sound travels fastest through this type of medium: air, water, or metal.
What is metal?
The sound effect that causes a siren to sound higher as it approaches and lower as it moves away.
What is the Doppler Effect?
what portion of the ear has fluid and transfer sound to the auditory nerve
cochlea
what are three uses of ultrasounds
- medicine
- buildings
- fish finder
These high-frequency sound waves are above the range of human hearing and are used in medical imaging.
What are ultrasound waves?
When two sound waves meet and amplify each other, this type of interference occurs.
What is constructive interference?
what are the main structures of the middle ear, what is their purpose
the three auditory bones, they take sound waves and direct them towards the inner ear
what happens when an ultrasound waved hits bone vs when it hits blood
reflection
diffraction
This scientist demonstrated in 1660 that sound requires a medium by placing a ringing alarm clock in a vacuum.
Who is Robert Boyle?
the height of a sound wave where particles are close together
compression
how do vocal cords create sound
the opening and closing of the glottis creates different frequencies