Doppler effect study guide
Galaxies are redshifted and moving away from us
How does the Big Bang Theory explain observations of the Doppler effect in the universe?
wavelength
In the Doppler Effect Lab, we mostly observed changes in what?
low pitched
Long sound waves are
high pitched
Short sound waves are
true
The Doppler effect is seen when a wave-making source moves toward an observer.
true
The Doppler effect occurs when an observer moves away from a wave-making source.
true
The Doppler effect occurs when an observer moves towards a wave-making source.
red shifted
What do the light waves of a galaxy that is moving AWAY from us look like?
blue shifted
What do the light waves of a galaxy that is moving TOWARD us look like?
high pitched
When a car moves towards you, the sound of its horn seems relatively
high pitched
When an ambulance move TOWARD you it sounds ________ pitched.
low pitched
When the car moves AWAY from you, its horn seems
true
a higher frequency results when a wave source moves towards an observer
false
a moving wave source does not affect the frequency of the wave encountered by the observer
vector
acceleration
scalar
age
a line starting from the origin and goes up the graph and gradually starts to curve inward
d-t accelerating
a horizontal line going straight across the graph
d-t at rest
a line starting from the top of the graph and going down
d-t coming back
a diagonal line going up the graph
d-t constant speed
a line starting from the origin and goes up the graph and gradually starts to curve outward
d-t decelerating
vector
displacement
scalar
distance
scalar
energy
vector
force
low frequency
if the wave source is moving away from the observer it has ______________ frequency
high frequency
if the wave source is moving toward the observer it has ______________ frequency
true
it occurs when a wave source moves away an observer
scalar
mass
vector
momentum
red shift
moving away
lower frequency (red)
moving away (longer wavelength)
blue shift
moving closer
higher frequency (blue)
moving closer (short wavelength)
scalar
speed
normal frequency
standing still
normal spectrum
standing still
scalar
temperature
the Doppler effect
the apparent change in the frequency of a wave caused by relative motion between the source of the wave and the observer
wave frequency
the changed pitch of the Doppler effect is due to changes in...
the man because it already passed the woman
the police car has passed the woman standing on the sidewalk, but has not yet passed the man. Which observer hears the siren at a higher pitch
scalar
time
a diagonal line going up the graph
v-t accelerating
a straight horizontal line on the x-axis
v-t at rest
horizontal line going across the graph
v-t constant speed
vector
velocity
vector
weight
pitch
which sound property describes how high or low a sound seems to a person
