The figure below measures distances in the amount of time it takes light to travel.If the circumference of Earth is a snap of your fingers (1/7 second) , the diameter of the Solar System is approximately equal to
A) the length of a quick lunch.
B) the time to turn a page in a book.
C) the length of the workday.
D) the time you spent in high school.
E) a human lifetime.
Correct Answer:
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Q19: According to the figure below, Earth is
Q20: The average distance between Earth and the
Q21: Before you can scientifically test a hypothesis,
Q22: A hypothesis is an idea that is
A)
Q23: Our universe is approximately 13.7 _ years
Q25: Which of the following is true?
A) A
Q26: In science an idea that cannot be
Q27: The speed of light is approximately
A) 3,000
Q28: A theoretical model is
A) a made-up explanation.
B)
Q29: A hypothesis may become a theory
A) automatically,
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