Kepler's Third Law

Quaoar (dwarf planet) orbits the sun at a distance of 42.0 AU. What is Quaoar’s orbital period in earth years?

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NGSS.HS-ESS1-4

The planet KOI 268.01 has an orbital period of 4.51 earth years from its star. What is KOI 268.01’s distance from their sun in kilometers?

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NGSS.HS-ESS1-4

Kepler's 3rd law tell us that __ would be dependent on __.

• orbital period ; distance

• distance ; orbital period

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NGSS.HS-ESS1-4

The farther away a planet is from the sun, the _______ it takes it to orbit the sun once. 

• longer

• shorter

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NGSS.HS-ESS1-4

The "Law of Harmonies" is which of Kepler's Laws?

• 1st

• 2nd

• 3rd

• 4th

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NGSS.HS-ESS1-4

NGSS.HS-PS2-4

When a planet orbits the Sun, one of the foci of the elliptical orbit is 

• the axis

• the perihelion

• the center

• the Sun

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NGSS.HS-ESS1-4

What unit to we usually use to to measure a planet's orbital period?

• light year

• year

• day

• astronomical unit

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NGSS.HS-ESS1-4

This formula is about

• Kepler's First Law

• Kepler's Second Law

• Kepler's Third Law

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NGSS.HS-ESS1-4

According to Kepler's Third Law, the square of the orbital period of a planet is proportional to the cube of its average distance from the sun. Which of the following equations represents this law?

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NGSS.HS-ESS1-4

If a planet's orbital period is 8 Earth years, what is the approximate average distance from the sun in astronomical units (AU) according to Kepler's Third Law?

• 4 AU

• 8 AU

• 16 AU

• 64 AU

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NGSS.HS-ESS1-4