Waves Carry Information
Middle School Science · Flashcards · Application
MIDDLE SCHOOL SCIENCE · FLASHCARDS
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QUESTION
Which modulation type is described: the carrier's amplitude changes while frequency stays constant?
QUESTION
Identify the correct statement: AM changes amplitude or AM changes frequency?
QUESTION
What is the correct wavelength if
v
=
300
m/s
v = 300\text{ m/s}
v
=
300
m/s
and
f
=
100
Hz
f = 100\text{ Hz}
f
=
100
Hz
?
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ANSWER
λ
=
3
m
\lambda = 3\text{ m}
λ
=
3
m
. Using
v
=
f
λ
v = f\lambda
v
=
f
λ
:
λ
=
300
100
=
3
m
\lambda = \frac{300}{100} = 3\text{ m}
λ
=
100
300
=
3
m
.
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