This question is incomplete. Here is the complete question:
Which physical law states that all orbits are conic sections?
A. Kepler's third law
B. Kepler's second and third laws
C. Newton's laws
D. Kepler's first law
Answer:
The correct answer is option D. Kepler's first law.
Explanation:
A renowned astronomer and mathematician named Johannes Kepler established laws that characterized the movements of the planets that are part of our solar system.
<u>Kepler's First Law</u> states that all orbits are conic or ellipse-shaped sections, and the <u>Sun is located in a center point within them</u>. The planets are going to move along these ellipses, which means these sections are not going to share the same center.
Therefore, if a planet moves within an ellipse, and the Sun is only at one point, <u>each planet will move closer and further away from the Sun in different ways</u>, each within this ellipse, therefore the distance between the planet and the sun will change constantly.
Given this data, we can say that the correct answer is option D.
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