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Assessment
What shape do planetary orbits follow according to Kepler's First Law?
Ellipses
Circles
Spirals
Parabolas
Which of the following did Galileo use to support his theories on motion?
Telescope observations
Geometrical proofs
Alchemy experiments
Astrological charts
What is the relationship between the period of a planet's orbit and its distance from the sun according to Kepler's Third Law?
The square of the period is proportional to the cube of the distance
The period is directly proportional to the distance
The period is inversely proportional to the distance
The distance is independent of the period
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