Astronomy

Answers to review 683 and 686 are on GazdaHW Homework playlist. Answer to 684 and 685 are below.

684

This interactive animation is helpful when trying to understand elliptical orbits, eccentricity and Kepler's Laws of Planetary Motion. Use the slider to change the orbit's eccentricity. Take note of the variation in speed of the planet as it revolves around the star. http://astro.unl.edu/classaction/animations/renaissance/kepler.html

2. The angle at which we see the lit half of the moon.

3. First Quarter

[on back] 1. (1)

2. (4)

3. (1)

4. (2)

685

1. (2)

2. (3)

[on back] 1.

2. E -> D -> C -> B

3. Nov 29 or 30th

Test Review is Below