P1

Description

Physics (P1) Mind Map on P1, created by Matthew Jones on 08/30/2013.
Matthew Jones
Mind Map by Matthew Jones, updated more than 1 year ago
Matthew Jones
Created by Matthew Jones over 11 years ago
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Resource summary

P1
  1. Milky Way Galaxy
    1. Solar System
      1. Stuff In Space
        1. Asteroids
          1. Comets
            1. Planets, Dwarf Planets and Moons
              1. Mercury
                1. Venus
                  1. Earth
                    1. Mars
                      1. Jupiter
                        1. Saturn
                          1. Uranus
                            1. Neptune
                              1. Pluto
            2. Earth
              1. 5000 Million Years old
                1. Sun
                  1. 5000 Million Years old
                    1. Universe
                      1. 14000 Million Years old
              2. Speed Of Light
                1. 300,000 km/s
                2. Parallax Method
                  1. Astromeners take pictures 6 months apart
                    1. Apparent movement of a star between the two photos, lets you work out how far away it is
                      1. Stars further away move less than stars closer to earth
                    2. Red Shift
                      1. When a galaxy is moving away from us, the wavelength of the light changes - The light becomes redder
                    3. The Earth is an active place
                      1. Rocks provide a record of change in the Earth
                        1. Rocks are constantly being recycled
                        2. Wegner's Theory Of Continental Drift
                          1. Theory
                            1. That all continents were once together as one and they have all drifted apart
                              1. Evidence
                                1. The continents look like they fit together like a puzzle
                                  1. Matching rock layers in South America and Africa
                                    1. Similar fossils in South America and Africa
                                      1. Wasn't accepted at first. Why?
                                        1. Erosion Theory was just accepted
                                          1. Wasn't detectable
                                            1. Couldn't be recreated in a lab
                                              1. Wegner was a meteorologist not a geologist
                                                1. BUT THEN ...
                                                  1. In the 1950s, scientists investigated the Mid-Atlantic ridge
                                                    1. The found that magma rose up through the sea floor. This magma cools and create underwater mountains
                                                      1. The evidence suggested that the sea floor was spreading and the continents were moving apart
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