Center of Mass and Tides

Center of Mass and Tides - High tides occur every 12 hours...

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Center of Mass Objects attracted by gravity orbit around their center of mass Why are there Tides? Take the Bay of Fundy in Nova Scotia Tides there can range 50 feet between high and low High (and low) tides happen basically twice a day Gravitational force decreases with (distance)2 The Moon’s pull on Earth is strongest on the side facing the Moon, and weakest on the opposite side. The Earth gets stretched along the Earth-Moon line. The oceans rise relative to land at these points. Every place on Earth passes through high tides twice per day as the Earth rotates.
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Unformatted text preview: High tides occur every 12 hours 25minutes remember, the Moon moves! The Suns tidal effect on Earth is not as strong. Remember the inverse square law.the Sun is a long way away. Tides are strongest when the Sun & Moon pull in the same direction (new & full phases) high tide is higher than usual (spring) Weakest when the Sun & Moon pull at right angles (first & last quarter phases) high tide is lower than usual (neap)...
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Center of Mass and Tides - High tides occur every 12 hours...

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