Unit Test
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58:47
Which best describes why Kepler's observation of planetary
motion is a law instead of a theory?
In the seventeenth century, astronomer Johannes Kepler
observed the planets revolving around our sun and analyzed
data about them. He found that as the distance from the Sun
increases, the amount of time it takes for the planet to go all
the way around the Sun increases. Even though Kepler did
not know why his observation was true, it has been found
that planets in all solar systems always revolve around suns
the same way.
It does not discuss independent and dependent variables
that can be observed or tested.
It does not provide an explanation for why the relationship
exists between distance and orbit time.
A lot of new technology has been developed that can
record more accurate data about planetary motion.
A lot of different understandings of why planets move
have been developed, and Kepler's provides the best
explanation
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