1) How was the solar system formed ?

1. 1) How was the solar system formed ?

2. 2) explain the order of the universe?

3. 3 a) Kepler’s first law •  explains that planets are orbiting the sun in a path described as an ellipse • Ellipse had two focus pointss

4. 3 b) Keplers second law • Kepler realized that the line connecting the planet and the Sun sweeps out equal area in equal • This means that when planets are near the Sun in their orbit, they move faster than when they are further away.

5. 4) Earth's orbit • A complete orbit of the Earth around the Sun occurs every 365.256363004 mean solar days.

6. 3 c) Keplers third law The ratio of the squares of the time for one revolution of any two planets is equal to the ratio of the cubes of their average distances from the sun.

7. 5) Rotation how it relates to day and night? • As the Earth rotates on its axis, light from the sun hits different parts, giving us day and night.  • 24 hours to complete one rotation

8. 6) What is a revolution • The amount of time it takes for the earth to complete one orbit around the sun • 365.4 days

9. 7) Tilt of the earth • The tilt causes earth seasons • 23 degrees

10. 9) nutation • Nutation is a rocking, swaying, or nodding motion in the axis of rotation of a largely axially symmetric object, such as a gyroscope, planet, or bullet in flight, or as an intended behavior of a mechanism. • Nutation moves it off the axis and the seasons change with a difference in sun angle

11. 8) What is precession • Cone swept out 25,920 years

12. 10)What is a barycenter The barycenter is the point between two objects where they balance each other. Between the earth and the moon the barycenter is beneath the earth’s surface

13. 11) nutation • Nutation is a rocking, swaying, or nodding motion in the axis of rotation of a largely axially symmetric object, such as a gyroscope, planet, or bullet in flight, or as an intended behavior of a mechanism. • Nutation moves it off the axis and the seasons change with a difference in sun angle

14. 12 and 13) skip

15. 14) How does earth and moon cause tides • Moon pulls the water toward it, as the earth rotates this causes the tides to change

16. 15) Skip

17. 16)Spring and Neap tides • When the moon are sun are in line, the tide is higher and lower than usual • Neap tides occur when the moon is at aright angle to the sun. Tides are moderate. Not as high or low as usual

18. 17) Fusion and fission • Fission when an atom is split and energy is released • Fusion when two atoms fuse together (the sun has hydrogen atoms that fuse and form heliumand release energy)

19. 18) What nuclear reaction forms in the sun • the energy from the sun is formed when hydrogen atoms fuse to form helium • This process is called fusion

20. 19) Which nuclear reaction is used • The atom is split and energy is released • This is called fission

21. 20) electromagnetic spectrum • The smaller the wave the greater the energy • The larger the wave the lower the energy Low energy High energy High energy

22. 21) How does the atmosphere filter harmful energy • Ozone blocks UV rays only some can pass through

23. 22) Energy from sun to earth • Solar flares give off radiation travels through space and hits the earth

24. 23) Skip the question

25. 24) How is light used in photosythesis?

26. 25) What is the earth’s magnetic field? • Magnetic field protects the earth from sun radiation • Northern Lights are the suns energy hitting earths magnetic field