Doubling the linear size of an object multiplies its area by
1) two,
2) four,
3) six,
4) eight,
and its volume and weight by
5) two.
6) four.
7) six.
8) eight.
Answer: 2, 8
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A.
B.
C.
D.
E.
What is actually happening to the expansion of the Universe?
A.) It is continuing more or less unchanged. B.) It is slowing down. C.) It is accelerating. D.) The Universe is unchanging. E.) It is tearing apart.
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Fill in the blank(s) with correct word
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A) 1.5 kJ B) 3.0 kJ C) 0.18 MJ D) 11 MJ E) 18 MJ