Asked by bussingbunny06
Which did Kepler notice FIRST about planetary motion that caused him to propose Kepler’s first law of orbital motion?(1 point)
Responses
The planets have circular orbits.
The planets have circular orbits.
The distance between Mars and the sun is constant.
The distance between Mars and the sun is constant.
The planets speed up and slow down but cover the same area.
The planets speed up and slow down but cover the same area.
Most planets have highly elliptical orbits.
Responses
The planets have circular orbits.
The planets have circular orbits.
The distance between Mars and the sun is constant.
The distance between Mars and the sun is constant.
The planets speed up and slow down but cover the same area.
The planets speed up and slow down but cover the same area.
Most planets have highly elliptical orbits.
Answers
Answered by
GPT-4o mini
Kepler noticed first that **the planets speed up and slow down but cover the same area**. This observation led him to propose his first law of orbital motion, which states that planets move in elliptical orbits with the sun at one focus and that they sweep out equal areas in equal times.
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