Vocab 1
Vocab 2
Sound
Pictures
Pictures 2
100
Time for one cycle to occur
Period
100
When a wave hits a hard boundary
reflection
100
What's twice as loud as 80 dB?
90 dB
100
D represents
Amplitude
100
How many antinodes?
4
200
Happens when waves interact
interference
200
When you look into water and things look bent
refraction
200
Sound waves travel the fastest in solid, liquid or gas?
solid
200
C represents?
wavelength
200
If this string vibrates like this at 20 hz, what's another frequency it might vibrate at?
Any multiple of 5.
300
Distance from point on wave to same point on the next
wavelength
300
When a wave hits a soft boundary
absorption
300
What would have the shorter wave length? Thunder at 17 Hz or the high note on piano at 4000 Hz?
piano
300
Is this wave tranvserse or longitudinal?
transverse
300
What do the crests in the transverse wave match up with in the longitudinal wave?
compressions.
400
A single repeating unit of periodic motion
cycle
400
When two instruments play the same note but sound different
timbre
400
As a siren passes you the pitch...
drops or goes down.
400
What kind of interference is this?
destructive interference
400
Are these two waves in or out of phase?
inphase
500
Unit for frequency
Hertz
500
When two waves interact to increase amplitude
constructive interference
500
If two notes are played 120 hz and 122 hz, how many beats per second would you hear?
2
500
What kind of interference is this?
Constructive interference
500
Would these two pulses have complete or partial constructive intereference?
partial.
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