Waves: Lesson 1
Waves: Lesson 2
Sound: Lesson 1 & 2
Sound: Lesson 4
Misc.
100
What is the high point of a transverse wave?
The crest.
100
What is the amplitude of a wave.
The maximum distance from the resting point to the crest.
100
What is a decibel?
It is a unit measuring loudness of sound.
100
What are the three smallest bones in your ear?
The hammer, the anvil, and the stirrup.
100
When your vocal cords stretch they _______ more quickly as the air rushes by them.
Vibrate
200
Waves that require a medium to travel through.
A mechanical wave.
200
What is wavelength?
The distance from two corresponding parts of a wave, such as the crest
200
What is density?
A unit measuring how much matter or mass.
200
True or false; Your ear gathers sound waves.
True
200
Frequency is measured in _____.
Hertz
300
The ability to do something.
Energy
300
What is the frequency of a wave?
The # of times a wave passes over a given point in a certain amount of time.
300
List in order the fastest to the slowest mediums.
Solid, liquid, gas
300
What are the three sections of the ear?
The outer ear, the middle ear, and the inner.
300
What is a the important property of sound
It is loudness.
400
What makes up surface waves?
Longitudinal and transverse waves.
400
What is the frequency of a wave that passes by a point every second?
1 wave per second.
400
What is the loudness in decibels in your normal conversation?
It is 40-50.
400
What does extended exposure to loud sounds do to hair cells?
It will damage them.
400
What is the lowest natural frequency?
It is the fundamental tone.
500
Can light travel through a vacuum?
Yes, it can.
500
How can you determine a waves speed?
Dividing the distance it travels by the time it travels by the time it takes to travel that distance.
500
What is the range of a bullfrogs hearing in hertz?
It is 100-2,500 hertz.
500
What is the name of a implant that helps you hear?
The cochlear implant.
500
Electromagnetic waves with wavelegnths shorter than microwaves are _______________.
Thermograms
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