Studied by 36 people
waves
a propagation of energy from one position to another
mechanical
_________ waves: need a medium
electromagnetic
_________ waves: don’t need a medium
gamma xray ultraviolet visible infared micro radio
order the types of electromagnetic waves from high energy to low energy
gamma xray ultraviolet visible infared micro radio
order the types of electromagnetic waves from high frequency to low frequency
gamma xray ultraviolet visible infared micro radio
order the types of electromagnetic waves from low wavelength to high wavelength
high low high
gamma has [high/low] energy, [high/low] wavelength, and [high/low] frequency
low high low
radio has [high/low] energy, [high/low] wavelength, and [high/low] frequency
transverse compressional
the two types of mechanical waves are _________ and __________
period (T)
time it takes for the wave to repeat (seconds/wave)
seconds/wave
period (T) is measured in
Frequency (f)
waves per unit time (waves/second = Hertz (Hz))
waves/second = Hertz (Hz)
Frequency (f)is measured in
meters/second
Speed (v) is measured in
Speed (v)
wavelength x frequency = wavelength/period
c
speed of light in a vacuum (3.0×10^8 m/s)
refraction
when light (or any wave) bends due to a change in media
n
index of refraction
Snell’s law
sinθ1/sinθ2 = n2/n1 = v1/v2
critical angle
angle at which 0 refraction occurs
diffraction
waves spread as they pass through an aperture or around objects
s
in the s = wavelength x D/d equation, the fringe width
d
in the s = wavelength x D/d equation, the slit distance
D
in the s = wavelength x D/d equation, the distance from slit to screen
standing
a ___________ wave has nodes and antinodes; two waves that are exactly the same travel in opposite directions
travelling
a ___________ wave has a consistent amplitude and goes to infinity
antiphase
exact opposite wave = π
π
quantity of antiphase
2π
quantity of wave “in phase”
3π/2
quantity of the antiphase of a travelling wave
π/2
quantity of a travelling wave
π
quantity of the antiphase of a standing wave
