8. Centripetal Forces & Gravitation

Which planet in our solar system has an orbital eccentricity most similar to $E\text{'}s$ eccentricity?

Which of the following was a major contribution of Johannes Kepler to astronomy?

Which of the following is responsible for the changing of seasons on $\mathrm{Earth}$?

Earth is closer to the $\mathrm{Sun}$ in January than in July. Therefore, in accord with Kepler's second law, which of the following is true about Earth's orbital motion?

Which of the following statements best describes Kepler's First Law of planetary motion?

Which of the following best describes what Hubble's Law tells us?

According to Kepler's first law, what is the shape of the orbit of a planet around the $Sun$?

How does Earth's varying distance from the Sun affect our seasons according to $Kepler’s$ Laws?

Which of Kepler's laws states that the orbit of a planet around the $Sun$ is an ellipse with the $Sun$ at one focus?

During the summer in the northern hemisphere, why does the $North Pole$ experience continuous daylight (no night time) for several weeks?

Which statement best describes the difference between a spring tide and a neap tide?

Who discovered the three laws of planetary motion?

Which of the following best explains why Earth experiences seasons as it orbits the Sun according to the principles related to $Kepler’s$ Laws?

Which of Kepler's laws of planetary motion is a consequence of the conservation of angular momentum?

In what direction do the planets revolve around the $Sun$ according to Kepler's Laws?