Question

Which contributions did Johannes Kepler make? Select three options.
He revived Aristotle’s model of the solar system.
He solved Ptolemy’s model by proving elliptical orbits.
He proved Galileo’s calculations were incorrect.
He determined that planets move faster when closer to the Sun.
He discovered laws of planetary motion.

Answer 1

Answer: 2, 4, and 5

Explanation: I just did it on edgenuity and it was correct

Answer 2

Options 2,4 and 5 are right.

• Johannes Kepler was a German mathematician and astronomer.
• He solved Ptolemy's atom model which suggested the earth was the center of the universe.
• Kepler suggested that the sun is the center of the universe with other planets revolving around the sun in elliptical orbits.
• According to Kepler's planetary motion planets moves with constant areal velocity.
• It moves faster near the sun and vice versa.
• He also put forward the Laws of planetary motion.