NATS 1745 Study Guide - Final Guide: Catadioptric System, Central Force, Centrifugal Force
20 May 2016
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Gravity not only applies in space, it applies on earth. What would happen to the moon"s orbital speed if the moon moved closer to the. As an object falls closer to earth, the force increases because it is in closer proximity to the ground. Chromatic abberation: failure of a lens to focus all colours in a light ray at the same point. The inverse-square law means as distance widen, gravitation force decline by 1/d2. If one body doubles its distance, the gravity weakens by . The royal society"s challenge in 1684 is to prove mathematically the inverse-square law, consistent with kepler"s laws of planetary motion. He proved that kepler"s 3rd law applies everywhere. He derived the masses of jupiter and saturn by measuring the orbit of their moons, and comparing it to the earth"s. According to his measurements, the masses were significantly higher compared to other visible planets.
