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WorksheetsRC Moocs Quiz
Total questions: 9
Worksheet time: 24mins
Name
Class
Date
1.
As compared to sound waves frequency of radio waves is
a)
lower
b)
higher
c)
equal
d)
may be higher or lower
2.
The acronym FM stands for
a)
Frequency modes
b)
Filter modulation
c)
Frequency modulation
d)
Filter methodology
3.
At night, AM transmissions can be received from great distances because
a)
There are fewer stations broadcasting
b)
There is less traffic on the roads to cause interference
c)
The dissipation of the 'D' layer of the ionosphere
d)
All of the above
4.
mass media is following ethics in reporting
a)
True
b)
False
c)
Both of them
d)
None of the above
5.
Modulation is done in
a)
Transmitter
b)
Radio receiver
c)
Between transmitter and radio receiver
d)
None of the above
6.
Because of rock samples, scientists found the composition of the moon similar to Earth's ____.
a)
mantle
b)
crust
c)
atmosphere
d)
core
7.
What are the three steps of the current explanation for the formation of the moon?
a)
impact, ejection, formation
b)
impact, explosion, creation
c)
explosion, ejection, formation
8.
All of the ______ have multiple moons.
a)
gas giants
b)
inner planets
9.
Which planet has the two moons, Phobos and Deimos?
a)
Mars
b)
Mercury
c)
Earth
d)
Saturn
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