Science waves Flashcards
why is there no sound in space?
there is no matter for the sound to travel though.
what is a series of 0 and 1’s used in computer language
binary
how do you shatter glass?
frequency+pitch
which travels faster light wave or sound wave?
light wave
what is happening when light slows down?
Refraction
when the wave enters the medium what happens to the wave?
it bends
why do soundwaves travel faster than though a solid
there are more particles to bounce off of.
constructive interference occurs when…
2 waves meet and create a larger amplitude
destrucrtive enterference occurs when…
2 waves meet and create a smaller amplitude
what is deffraction
when an object causes a wave to change direction and bend around it.
what is absorpation
when a wave strikes an object and absorbs the energy.
what does an invisbility cloak dowith light waves.
the light waves bounce, bend, mix and move around.
what do light wvaes do when they enter a prism?
Bend
red waves travel…
longest
vilot waves travel…
shortest
why do red waves travel longest and vilot travel shortest
because red wavelengths are greater and violet wavelengths are lesser.
When wavelengths increases frequency….
decreses
When frequency increases amplitude….
increases
energy increases becuase the speed and ampliude…
Increases
what is the unit for freuency?
Hz (hertz)
list 5 objects to asord sound in a room
all objects that are soft, or furry
list the 4 types of seismic waves
p,s,l,r (people sweat lots regularly)
P waves move…
side to side
p waves pass through
solids liquids and gasses
which wave moves at 10000
L
how do L waves move the crust
up and down
which wave moves in a elleptical pattern
R waves
Which waves are the most destructive
R waves and L waves
Where does s waves stop?
the earths core
where does a p wave stop
NOO, a p wave can travel through all layers of the earth
L waves move across what
the surface
formula for wave speed
frequency* wavelength
where is the crest
on the highest point of the wave
where is the trough
the lowest point of the wave
where is wavelegth
from crest to crest or trough to trough
where is aplitude
from resting pt to crest or trough
what do humans hear at
20,000 hz
what do dogs hear at
45,000 hz
