Chapter_13 - Chapter 13: The Law of Gravity Reading...

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Historically very interesting, heliocentric vs. geocentric universe The main cast: Copernicus, Brahe, Galileo, Kepler, Newton Satellite motion Chapter 13: The Law of Gravity Reading assignment: Chapter 13.1 to 13.5 Homework : OQ1, OQ2, OQ5, OQ8, 2, 3, 6, 10, 13, 14, 18, 28, 33 Due date: Tuesday April 12 Copernicus 1473 – 1543 Brahe 1546 – 1601 Galileo 1564 – 1642 Kepler 1571 – 1630 Newton 1643 – 161727
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- Ptolemy (100 –170 A.D.) geocentric model: Sun revolves around earth (Wrong!) From astronomical observations: - Copernicus (1473-1543) heliocentric model: Earth & planets revolve around sun - Brahe (1546 - 1601) Accurate observation of planetary motion - Galileo (1564 - 1642) (1610) supports the heliocentric model - Kepler (1571-1630), 1609: Laws I, II of planetary motion, - Kepler 1619: Law III of planetary motion - Aristotle (384-322 B.C.) Heavier objects fall faster than light objects (Wrong!) - Galileo (1564 - 1642) Neglecting air resistance, all objects fall at same acceleration Geocentric vs. heliocentric model of earth About falling objects
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Newton’s Law of Universal Gravitation
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Chapter_13 - Chapter 13: The Law of Gravity Reading...

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