P1.2 Earth

P1.2 Earth

1. Waves

   • Formula
     • wave speed
       • WS = F x WL
     • Frequancy
       • F = WS / WL
     • Wavelengh
       • WL = WS / F
   • Parts of a wave
     • Amplitude
     • Trough
     • Wave lengh
     • Peak / Creast
   • Types
     • Longitudinal Waves
     • Transverse Waves

2. Earthquakes

   • Waves
     • P- waves
       • Primary waves
         • Passes though liquid and rock
         • Faster than s - waves
       • longditudal
     • S - waves
       • Secondary waves
         • Only pass though rock
       • transverse
     • Sesimic Waves

3. Alfread Wenger

   • Preposed a theroy of all the continats joinied together
     • Pangaea
     • People didn't belive him because he was a meteoroligist
     • They thought that there was masive land brides
   • continetal drift

4. Earth Sturucture

   • layers
     • 1st Crust
       • 5km-70km
     • 2nd Mantal
       • 3000km
     • 3rd Core