20130515SW



Wednesday Warmup: Elliptical Orbits (2013-05-15)

Yesterday you made some elliptical orbits and studied their patterns of motion. See what you remember! 1. In the image shown above, where is the green object moving the fastest?
 * Point A
 * Point B
 * Point C
 * Point D

2. In the image shown above, where is the green object moving the slowest?
 * Point A
 * Point B
 * Point C
 * Point D

3. In the image shown above, where is the green object gaining speed? (Assume the object is orbiting counter-clockwise.)
 * Point A
 * Point B
 * Point C
 * Point D

4. In the image shown above, where is the magenta object moving the fastest?
 * Point A
 * Point B
 * Point C
 * Point D
 * Wait! It has a steady speed!