/sci/ - Science & Math

I will into space one day

When I look up the stars I get the feeling that I am in the greatest sandbox possible.

But I am stranded on 1 small grain of sand.

Ask a astronomy autodidact anything!
Take note that I don't know much about cosmology

Hello /sci/ I want to see how much /sci/ knows about astronomy/physics used in astronomy.
1.What are keplers 3 laws of planetary motion?
2.Name the 2 most prominent elements in the sun plus the state of matter the sun is in.
3.What is the dominant theory of how the moon was formed?
4.What is an AU in kilometers?
5.Name newtons 3 laws of motion.
6.Explain the Doppler effect?
7.How old is the universe?
8.Approximate the percent of water covering the earths surface.
9.If you dropped a helium balloon on the moon. and if it didn't pop due to extreme cold, heat, or pressure Would it float away or drop to the surface?
10.What is a parsec?
11.How did we determine the length of the astronomical unit?
12.Name two ways galileo proved heliocentrism.
13.What is the anual GDP of the world?
14.Explain the seasons.
15.Explain the phases of the moon.
16.What is the photoelectric effect?
17.Explain the basics of the special theory of relativity.
18.Explain the basics of the general theory of relativity.
19.Answer (20+30/2)^3-(50+3/3)^3
20.What is delta V
21.How far away from the sun is mars?
22.What are tidal forces?
23.Explain how solar systems are formed?
24.What event started the universe?
25.What process makes stars shine?
26.Name three types of telescopes.
27.Name 3 moons/planets where there migtht be life.
28.Why is the same side of the moon faces the earth?
29.What is a nebula?
30.What spectroscopy?