Show:
Nature of Sound
Properties of Sound
How You Hear Sound
Using Sound
Random
100
Sound travels in what kind of wave?
Longitudinal
100
The description of how high or low a sound is?
pitch
100
What collects sound waves and directs them to a narrow region?
Ear canal
100
What is the use of reflected sound waves to determine distances or to locate objects?
Echolocation
100
Who was the first person to break the sound barrier?
Charles Yeager
200
What is a reflected sound wave?
Echo
200
Loudness is measured in?
decibels
200
What is a small, tightly, strectched membrane called?
Ear drum or Tempanic membrane
200
Some animals including ___ and ___ use echolocation to find food and navigate
Dolphins and bats
200
True or false: Loudness is how the ear percieves frequency?
False
300
Why can you hear people talking from around the conner?
Diffraction
300
What describes the change in frequency as its source moves?
The Doppler Effect
300
What is a fluid filled cavity shaped like a snail shell?
cochlea
300
What is a system that uses reflected sound waves to detect and locate objects underwater?
sonar
300
Name three factors of hearing loss?
aging, injury, infection, and exposure to loud noises
400
The more dense a material is, the _______ sound goes?
slower
400
What are the vocal chords in your voice box called?
larynx
400
What amplifies sound as it enters the ear?
Hearing aid
400
The farther the sound wave travel the ___ it takes to return to the sonar device
Longer
400
Could you hear sound in space? why or why not?
No, because sound needs a medium to travel through which space doesn't have.
500
How fast is sound at room temperature?
343 m/s
500
What is pitch measured in?
hertz
500
Name the parts of the middle ear in order
hammer, anvil, stirrup
500
What are two uses for ultrasound?
sonar and ultrasound imaging
500
The amount of energy the sound wave carries per second is?
Intensity