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WorksheetsSound and the Doppler Effect
Total questions: 20
Worksheet time: 13mins
Name
Class
Date
1.
As a person walks towards the speaker, the frequency he or she hears
a)
decreases
b)
increases or decreases, depending on temperature
c)
Increase
d)
remains the same
2.
The source of a sound moves away from the listener. The listener has the impression that the source isuestion*
a)
lower in pitch
b)
higher in amplitude
c)
lower in velocity
d)
all above
3.
The Doppler effect is produced if
a)
the detector is in motion.
b)
the source is in motion.
c)
both of these.
d)
none of the above.
4.
What sort of waves exhibit the Doppler effect?
a)
Water wave.
b)
sound wave.
c)
light wave.
d)
None of the above.
5.
If an ambulance siren passes you it will get.
a)
Lower
b)
louder
6.
If a ambulance siren is coming to you it is getting
a)
Louder
b)
lower
7.
Which wave frequency is higher.
a)
The small part
b)
The big part
8.
Which wave frequency is lower
a)
Front of car
b)
Back of car
9.
Which wavelength is smaller.
a)
Front of car
b)
Back of car
10.
Which wavelength is bigger.
a)
front of car
b)
Back of car
11.
What is a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.
a)
none of them
b)
wave
c)
lightwave
d)
Soundwave
12.
what is a long body of water curling into an arched form and breaking on the shore.
a)
Sound wave
b)
Wave
c)
None of these
d)
Light waves
13.
the infrared, visible and ultraviolet ranges, which falls between x-rays and microwaves.
a)
Wave
b)
sound wave
c)
Light wave
d)
Non of these
14.
the displacement of spectral lines toward longer wavelengths in radiation from distant galaxies and celestial objects. This is interpreted as a Doppler shift that is proportional to the velocity of recession and thus to distance.
a)
blueshift
b)
redshift
15.
the displacement of the spectrum to shorter wavelengths in the light coming from distant celestial objects moving toward the observer.
a)
Blueshift
b)
Redshift
16.
Source moves towards listener
a)
VS: negative
b)
VS: positive
17.
Source moves away from listener
a)
VS: positive
b)
VS: negative
18.
Listener moves towards source
a)
VL: positive
b)
VL: negative
19.
Listener moves away from source
a)
VL: positive
b)
VL: negative
20.
The Doppler effect occurs when a source of waves and/or observer move relative to each other, resulting in the observer measuring a different frequency of the waves than the frequency that the source is emitting.
a)
False
b)
true
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