CH. 3 - The Solar System

http://youtu.be/BZ-qLUIj_A0

solar alternative energy
Located in the bend of the Orion Arm of Milky Way
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Explore the Interactive Universe at History Channel


Parts of our Solar System:

http://www.glencoe.com/sites/common_assets/science/virtual_labs/E28/E28.html

Tim & Moby: Solar System

1 star: Sun

  • 8 planets: M,V,E,M,J,S,U,N

  • hundreds of "moons" or natural satellites orbiting the planets

  • The Asteroid Belt (Including Ceres)

  • Several Dwarf Planets or Planetoids: Pluto, Charon, Ceres, Makemake, Sedna, Quaoar, etc.

  • The Kuiper Belt

  • The Oort Cloud





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LAB: A SCALED COMPARISON OF THE DISTANCE BETWEEN THE PLANETS OF SOLAR SYSTEM.

Online Virtual Labs : http://mlhsscience.com/EarthsciVirtLab.aspx


GALILEO CARTOON: http://youtu.be/wfPtvSQt0XM



Ch. 3.1: Astronomical History of Theories for the Solar System



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  • 140 AD, Greek Mathematician/philosopher Ptolemy proposes an idea that we are part of a solar system with Earth being the center and the planets making circular “tilt-a-whirls” called epicycles along their orbits. This system model will come to be called the Geocentric model (geo meaning earth and centric meaning centered).







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1543, Polish Astronomer Nicolaus Copernicus challenges the geocentric system by proposing the the solar system is Heliocentric (helio meaning sun, centric meaning centered). His fear of the Catholic Church being amgry by his position lead him to hide his work. His book De Revolutionibus Orbium Celestium was published after he died in 1543.








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1610, Italian Astronomer Galileo Galilei invents the telescope and witnesses phases on venus. He supports Copernicus’ heliocentric model of the Solar system



http://www.brainpop.com/science/famousscientists/galileogalilei/




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1600, Danish scientist Tycho Brahe uses mathematical data to support the geocentric model modified into his own ideas.





jk.gifGerman Scientist and assistant to Tycho, Johannes Kepler goes against his master and supports the heliocentric model. Kepler also devises the LAWS OF PLANETARY MOTION.There are three of them:

1) The orbit of every planet is an ellipse with the Sun at a focus (Kepler's first law).

  1. 2) Planets do not travel consistent speeds on their orbits- faster at perihelion, slower at aphelion. (Kepler's second law).
  2. 3) The farther a planet is from Sun, the slower it revolves.



in.gifIsaac Newton (1642-1727) developed the Laws of Motion. At the urging of Edmund Halley, Newton published his Laws of Motion and analysis of Gravity in the Principia Mathematica, probably the greatest physics text ever written, in 1687.

NEWTONS 3 LAWS (http://www.brainpop.com/science/famousscientists/isaacnewton/)

1) Bodies, Rest & Motion-a body at rest remains at rest; a body in motion remaina in motion and continues in a straight line forever unless the resting or moving body is acted on by another force.

2) Force - Mass x Acceleration

3) Action/Reaction



Team Geocentric (Ptolemy & Tycho)
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Team Heliocentric (Copernicus, Galileo, Kepler)
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