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71 Cards in this Set

  • Front
  • Back
wave
any disturbance that transmits energy through matter or space
do waves carry energy
yes
do waver carry matter
no
a wave will travel as long as it has ____ to carry
energy
anything that moves up and down or back and forth in a rhythmic way is ______
vibrating
how are waves produced?
by something that vibrates
medium
substance through which a wave can travel
a medium can be a ____,____, or ____
solid, liquid, or gas
do sound waves require a medium
yes
do ocean waves require a medium
yes
a wave that requires a medium
mechanical wave
sounds waves cannot travel through _____ ____
empty space
waves that do not require a medium
electromagnetic waves
electromagnetic waves travel fastest through ____
empty space
2 types of waves
transverse and longitudinal
transverse and longitudinal waves combined
sufrace wave
transverse waves
wave in which the particles vibrate with an up or down motion
what does transverse mean
moving across
highest point of a wave
crest
lowest point of a wave
trough
an example of a transverse wave
electromagnetic wave
longitudinal waves
particles of the medium vibrate back and forth along the path the wave travels
a section of a longitudinal wave where the particles are crowded together
compression
a section of a longitudinal wave where the particles are less crowded together
rarefraction
an example of a longitudinal wave
sound waves
particles of the medium in a surface wave move in ______
circle
particles move _____ at the crest and _____ at the trough
forward and backwards
an example of a surface wave
ocean waves
where the particles of a medium stay where there are no disturbances
rest position
the larger the amplitude, the ____ the wave
taller
how is the amplitude of a transverse wave measured
from the rest position to the crest or to the trough
a wave with a larger amplitude carries _____ energy than a wave with a smaller amplitude
more
______ amplitude= low energy
small
large amplitude= _____ energy
high
the distance between one point on a wave and the nearest point just like it
wavelength
how do you measure wavelength for a transverse wave
between 2 crests or distance between 2 troughs
how do you measure wavelength for a longitudinal wave
distance between 2 compressions or between 2 rare fractions
the number of waves produced in a given amount of time
frequency
how do you measure frequency for a transverse wave
count the top number of crests or troughs that pass a point in a certain amount of time
how do you measure frequency for longitudinal wave
count the number of compressions or rare fractions that pass a point in a certain amount of time
what is frequency measured in
hertz
as the frequency of a wave increases, the wavelength ____
decreases
___ ____ the speed at which a wave travels
wave speed
what does the speed of a wave depend on
the medium in which the wave is traveling
do sound waves travel faster in gases or solids
solids
do sound waves travel faster in higher or lower temperatures
higher
what is the formula for calculating wave speed
v=a x f
v=
wave speed
a=
wavelength
f=
frequency
what is the unit for velocity
m/s
what is the unit for wavelength
m
what is the unit for frequency
Hz
reflection
bounces back after striking a barrier
can all waves be reflected
yes
reflected sound waves are called ______
echos
refraction
bending of a wave as it passes at an angle from one medium to another
what happens when a wave moves from one medium to another
speed changes
the bending of waves around a barrier or through an opening
diffraction
what does the amount of diffraction depend on
wavelength and size of the barrier or opening the wave encounters
when will large diffraction occur
barrier or opening is the same size as or smaller than the wavelength of an approaching wave
when will small diffraction occur
barrier or opening is larger than the wavelength of the wave
the result of 2 or more waves overlapping
interference
2 types of interference
constructive and destructive
occurs when the crests of one wave overlap the crests of another wave
constructive inferference
the resulting wave from constructive interference has a ____ amplitude than the original wave
larger
occurs when the crests of one wave and the troughs of another wave overlap
destructive interference
the resulting wave from destructive interference has a ____ amplitude than the original wave
smaller
standing wave
wave that forms a stationary pattern in which portions of the wave are at the rest position due to a total destructive interference and other portions have a larger amplitude to consecutive interference
resonant frequency
the frequency at which a standing wave is produced
who does resonance occur
when an object vibrating at or near the resonant frequency of a second object causes the second object to vibrate