Earth-Moon-Sun System Answers

Which statements describe the relationship of Earth and its moon? Check all that apply.The moon orbits Earth following a nearly circular path.The gravitational pull of Earth on the moon is parallel to the velocity of the moon.The moon orbits Earth in 1 Earth day.The same face of the moon always points toward Earth.The moon’s orbit is the result of the interaction between the moon’s inertia and the gravitational force from Earth.

Kepler’s first law states that the orbits of planets are ellipses with the Sun at one .

Dewayne reviews Kepler’s laws by making the table shown. Which label belongs in each cell of the table?

The mass of the Sun is 2 × 1030 kg, and the mass of Saturn is 5.68 × 1026 kg. The distance between Saturn and the Sun is 9.58 AU. Veronica is solving the following equation to calculate the orbital period of Saturn, but there is an error in the equation.T = What should Veronica change to correct the equation?

The image shows Earth’s orbit around the Sun.

Which best describes how Johannes Kepler developed his laws of planetary motion?

To solve a problem using the equation for Kepler’s third law, Enrico must convert the average distance of Mars from the Sun from meters into astronomical units.

The table shows information about the moons of Mars.MoonOrbital Period (days)Average Distance from Mars (km)Phobos0.3199378Deimos 23,459What is the orbital period of Deimos?

Based on Kepler’s work, which best describes the orbit of a planet around the Sun?

Johannes Kepler is known for which discovery in astronomy?