Vocabulary
Media
Properties of Sound
The Ear
Sound can...
100

The highness or lowness of a sound

pitch

100

What is a medium?

Something that sound travels through

100

What type of sound vibrates fast?

High pitch

100
Which part of the ear sends nerve impulses to the brain to tell you what you are hearing?
Inner ear
100
When sound bounces off an object
Reflect
200

The loudness or softness of a sound

volume

200

Sound travels the fastest through....

Solids

200
What type of sound has a low amplitude?
quiet sound
200
What is the part of the outer ear that we see called?
Pinna
200
When sound is taken in by an object
absorbed
300

Rapid back and forth movements

Vibration

300
Would sound travel faster through hot chocolate or chocolate milk?
hot chocolate
300
What do you hear if a sound wave has high amplitude and low frequency?
Loud and low pitch
300
Where is the eardrum located?
Middle ear
300
When sound bends around a corner or edge
Diffract
400

The part of the wave where the particles are spread apart.

Rarefaction

400
Why is there no sound in space?
There is no air, so there is no medium to travel through.
400
Match the following words to either PITCH or VOLUME: AMPLITUDE, FREQUENCY
Pitch-frequency; Volume-amplitude
400
What happens in the middle ear?
The tiny bones and ear drum vibrate
400
Why does an empty room sound "echo-y," but a room with furniture does not?
The sound reflects less because the furniture absorbs the sound.
500

What is a compression?

The part of the wave where the particles are pushed together

500
Put these in order from slowest to fastest media that sound will travel through: steel pan, water, ice, air
air, water, ice, steel pan
500
When I change my voice from low pitch to high pitch, what am I doing to the sound wave?
Making the wave vibrate faster.
500
Name the three smallest bones in the middle ear.
Anvil, stirrup, hammer
500
Give an example of sound absorption.
Screaming into a pillow (answers may vary)
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