How do systems outside of Earth affect Earth?
What evidence is there for the Big Bang?
Claim-The leftover radiation from the CBM
High energy radiation has cooled to microwaves
Hydrogen and helium were the only elements formed from the big bang
Connections- The stars in the galaxies
Two factors that keep a star’s surface in balance are
pressure from the core pushes out and gravity pushes in on it
Red Shift-the displacement of spectral lines toward longer wavelengths in radiation from distant galaxies and celestial objects
How do stars produce elements?
Claim-Nuclear fusion
Nuclei fuse together to form new elements
The hotter the stars are the bigger they will be
Hotter stars are on the color blue because there further on the spectrum scale
Connections- when hydrogen and helium are fusing together it is a main sequence star
Temperature and Luminosity are the main things that determine where the star lands on the spectrum scale
Why does an object go faster as it gets closer to its star?
Claim- Kepler's 2nd law
The closer the planet is to the star the faster it will go
The further away the star is the slower it will go
Connections-when the Earth gets closer to a star it will start to rotate faster
Equal area = Equal time
Kepler's 2nd law-the speed of a planet traveling in an elliptical orbit around the sun. It states that a line between the sun and the planet sweeps equal areas in equal times.