AST101H1 Lecture Notes - Lecture 8: The Moons, Tidal Acceleration
15 Nov 2013
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Causes: gravitational force of water in a balloon causes it to drop when you hold it by. October 3, 2013. the tie: moon is the largest body closest to earth. 384400 km to be exact: the exerted gravitational force of the moon is what pulls at the water; deforms the bodies of water. Rock also feels the pull but only slightly: moon pulls water as it rotates around the earth. So high and low tides will be at different times of the day depending on the moon"s position in its orbit. Example: the full moon rises and sets at 6pm and 6am, so it is at its highest point at 12 midnight. So high tide on a full moon is at midnight and noon. The difference is about 1 second every 50000 years: the moon has tidal bulges too. A long time ago it was molten, and more affected by earth"s pull.
