Hi guys! If you miss today's class here are the things that we did.
In the beginning of class Ms. K let us watch videos explaining Kepler's Law of Planetary Motion. If you're unfamiliar with Kepler's three laws, refer to your gray booklet in pages 6&7.
After we watched the videos, we went over Transparency 7-1 in page 21-22. Here are the answers to the questions:
1. gravitational force
2. elliptical
3. at one focus of Earth's elliptical orbit
4. at the point closest to the sun
5. at the point farthest from the sun
6. area(1)=area(2)
7. T(1)=T(2). Since the Earth's velocity varies, the time it takes to sweep out equal areas along its orbit is the same.
Lastly, for tomorrow's class we are to finish pages 15-18.
1 comment:
Thanks Marinhel!
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