Reason About Scale
Middle School Earth and Space Science · Flashcards
MIDDLE SCHOOL EARTH AND SPACE SCIENCE · FLASHCARDS
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QUESTION
What is the correct unit-canceling setup to find real distance from map distance and RF
1
:
n
1:n
1
:
n
?
QUESTION
What is the scale factor from a model to the real object for a scale of
1
:
200
1:200
1
:
200
?
QUESTION
Which object is larger in diameter: Earth at
1.27
×
10
4
km
1.27\times 10^4\text{ km}
1.27
×
1
0
4
km
or the Moon at
3.47
×
10
3
km
3.47\times 10^3\text{ km}
3.47
×
1
0
3
km
?
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ANSWER
Earth.
1.27
×
10
4
>
3.47
×
10
3
1.27 \times 10^4 > 3.47 \times 10^3
1.27
×
1
0
4
>
3.47
×
1
0
3
(compare exponents first).
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