Science Flashcards

(12 cards)

1
Q

Equation for eccentricity

A

Distance between Foci/length of major axis

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2
Q

Planets farthest point to the sun

A

Aphelion

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3
Q

Planets closest point to the sun

A

Perihelium

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4
Q

24 hours

A

Rotation

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5
Q

1 year

A

Revolution

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6
Q

Keplers first law

A

Planets orbits are ellipses

“All planets move in elliptical orbits, with the Sun at one focus.”

*	A planet’s path around the Sun is not a perfect circle but an ellipse (an oval-shaped curve).
*	The Sun is located at one focus of this ellipse, not at the center.
*	This means a planet’s distance from the Sun changes as it moves in its orbit.
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7
Q

Keplers second law

A

Law of equal areas
* As a planet moves around the Sun, it travels faster when it’s closer to the Sun and slower when it’s farther away.
* This happens because the planet covers equal areas in equal time intervals, even though the shape of the orbit changes the distance.

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8
Q

Keplers 3rd law

A

Law of orbital periods T^2 infinity r^3: farther planets take longer to orbit

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9
Q

The sun rises in the

A

East

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10
Q

The sun sets in the

A

West

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11
Q
A
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12
Q
A
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