The Moon has a synodic and a sidereal period. Define each term and describe which is longer and why.
2. Open Ended
30 seconds
1 pt
The seasons on Earth are linked to equinoxes and solstices. Define these terms in relation to what they mean to our seasons, and describe them in relation to celestial equatorial plane and the plane of the ecliptic.
3. Open Ended
30 seconds
1 pt
Keplers three laws
4. Open Ended
30 seconds
1 pt
The three units of distance used in astronmy are the Astronomical Unit (AU), the Light Year (LY) and the Parsec (pc). Devine AU in terms of kilometers.Define light year in terms of AU. Define parsec in terms of light years.
5. Open Ended
30 seconds
1 pt
Explain 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.