Discussion Post
• The Moon has a synodic and a sidereal period. Define each term and describe which is longer and why.
• The onset of Earth's seasons are linked to equinoxes and solstices. Define these terms in relation to our seasons.
Describe them in relation to the celestial equatorial plane and/or the plane of the ecliptic.
• State the definition of Kepler's three laws.
In your own words, what is the practical significance of each law?
• What is the difference between mass and weight?
• Explain in your own words what would happen to a planet's motion if suddenly all gravitational forces ceased to exist. Relate your explanation to Newton's 1st and 2nd Laws.
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.