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Kepler’s Law Eric Angat teacher

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The Big Bang Theory ( universe) http://www.youtube.com/watch?v=gs-yWMuBNr4

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Imbalance on Earth. More land and Less land.

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Astronomical Unit ( AU ) AU is the average distance between the Earth and the Sun. Its value is 150 million kilometers or 93 million miles or 1 AU.

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Milky Way Galaxy -our galaxy.

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2.54 Million Light-years (Mly) Milky Way Galaxy Andromeda Galaxy SPEED OF LIGHT: 299,792,458 meters per second or 186,000 miles per second

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http://www.nasa.gov/mission_pages/hubble/science/milky-way-collide.html The distance to the Andromeda Galaxy is 2.54 million light-years http://www.universetoday.com/30716/distance-to-andromeda/#ixzz2sRagJdDS http://www.universetoday.com/30716/distance-to-andromeda/#ixzz2sRagJdDS

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Distance on Earth is measured in KILOMETERS(km) and MILES (mi). Distance in the solar system is measured in ASTRONOMICAL UNITS (AU). Distance in the Milky Way galaxy measured in LIGHTYEARS (ly).

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Orbital Velocity http://www.youtube.com/watch?v=gvSUPFZp7Yo is how fast a planet travels as it orbits around the Sun.

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Copy and answer the following questions. 1.What is Kepler’s 1 st Law? 2. Kepler’s 2 nd Law states that planets sweep equal _______ in equal amount of _________. 3. What is the equation for Kepler’s 3 rd Law? 4.What is Kepler’s 3 rd Law?

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http://www.youtube.com/watch?v=QsopVzjd2sU

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What is Kepler’s 1 st Law? Planets have elliptical or oval orbits.

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Kepler’s 2 nd Law states that planets sweep equal _______ in equal amount of __________. Areas Time The area of this Is equal to the area of this They just have different shapes.

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Kepler’s Second Law http://astronomy.osu.edu/

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Which dot is bigger? A B

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P is the orbital velocity ( amount of time for a complete revolution.) What is the equation for Kepler’s 3 rd Law? P 2 = a 3 a is the Astronomical Unit (AU).

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Orbital Velocity http://www.youtube.com/watch?v=gvSUPFZp7Yo is how fast a planet travels as it orbits around a star.

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Kepler’s 3 rd Law compares the orbital velocities of planets. Planets near the Sun revolve faster while planets farther from the Sun revolves slower.

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28 mi/sec Nearest to the Sun. 21 mi/sec 18 mi/sec 15 mi/sec 8 mi/sec 6 mi/sec 4 mi/sec 3 mi/sec Farthest from the Sun

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5. Kepler’s 3 rd Law can determine the _____________of a planet given its distance from the Sun. a.orbital velocity or orbital period b.length of a year c.length of a day d.degree of ellipse of the orbit orbital velocity

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6. The diagram below demonstrates Kepler’s _____ Law. a.1 st b.2 nd c.3 rd d.4 th 2 nd

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7. The diagram below demonstrates Kepler’s _____ Law. a.1 st b.2 nd c.3 rd d.4 th 1 st Elliptical orbit

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