Planetary Motion Flashcards

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0
Q

Geocentric model

A

The model when earth was the center of the solar system

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1
Q

Orbital period

A

The time it takes for a planet to orbit the sun

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2
Q

Heliocentric model

A

The model where the sun is the center of the solar system (the right one)

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3
Q

Nicolaus copericous

A

Suggested the heliocentric model and was right

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4
Q

Ellipse

A

An oval shape that orbits the sun, rather than a circle.

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5
Q

Foci

A

Two points that is centered in a ellipse

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6
Q

Keplers 1st law

A

That planets orbit in a ellipse(not a circle)

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7
Q

Keplers Second law

A

Planets move faster when they are closer to the sun and slower than farther away

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8
Q

Keplers third law

A

That a planets distance from the sun can be calculated if the orbital period is known

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