Actual Motions

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Actual Motions
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Geocentric Model
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Heliocentric Model
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Did you know???? (do not write)

• It wasnt until 1851 that experimental proof of
  the motion of Earth was found

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Proof for the Heliocentric Model

• Proofs Coriolis effect, Foucault pendulum,
  seasons, parallax (apparent shifting of stars)-
  EARTH IS NOT STATIONARY

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New Definitions

• Year Time required for a planet (Earth) to
  complete one orbit around its primary (the sun)
  365.25 days on Earth
• Primary Object around which a satellite moves

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Review of Definitions

• Revolution Orbital motion of a satellite around
  its primary
• Foucault pendulum Weight that is free to rotate
  as it swings back and forth its slow change in
  direction of a swing is proof of Earths rotation
• Axis Imaginary line around which an object
  rotates

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Review of Definitions

• Rotation Spinning of a body around an internal
  axis (The Earths rotation causes day and night)
• Orbit Path (usually an ellipse) of any satellite
  around its primary
• Coriolis Effect Bending of the winds due to
  Earths rotation

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