Kepler's Third Law

The amount of time it takes for a planet to orbit around the sun is it's _____

• axis length

• foci

• magnitude

• period

The farther a planet is from the sun the __ it's period of orbit.

Kepler's 3rd laws states that the semi-major axis of a planet’s orbit (average distance to the sun in A.U.’s) is related to the planet’s orbit period by the equation:

p² = a³

In this equation what does 'p' represent?

• A planet's average distance from the sun

• A planet's orbital period

Tags

NGSS.HS-ESS1-4

Kepler’s 3^rd law states that the semi-major axis of a planet’s orbit (average distance to the sun in A.U.’s) is related to the planet’s orbit period (in Earth-years) by the equation:

p² = a³

What does 'a' represent in this equation?

• A planet's distance from the sun

• A planet's orbital period

Tags

NGSS.HS-ESS1-4

Which of Kepler's Laws states that "All planets move about the Sun in elliptical orbits, having the Sun as one of the foci"

• Kepler's 1st law

• Kepler's 2nd law

• Kepler's 3rd law

Which of Kepler's laws states that planets travel faster when they are close to the sun then they do when they are farther from the sun?

• Kepler's 1st law

• Kepler's 2nd law

• Kepler's 3rd law

Kepler's 3rd law states that a planet's period is proportional to its distance from the sun. Use the calculator found at http://www.1728.org/kepler3.htm to solve the following problem:

Mercury's period (p) is 0.241 years, how far is it from the sun (a)? Your answer should be in AUs. Do NOT include units in your answer.

Tags

NGSS.HS-ESS1-4

Kepler's 3rd law states that a planet's period is proportional to its distance from the sun. Use the calculator found at http://www.1728.org/kepler3.htm to solve the following problem:

A planet is 3.9 AU from the Sun. Find the period of the planet (p) in years. Do NOT include units in your answer.

Tags

NGSS.HS-ESS1-4

Kepler's 1st law says that the eccentricity of a planet's orbit can be determined with the following equation e=f/d

If the focal length of an ellipse is 2 and length of its major axis (d) is 5, what is the eccentricity (e) of the ellipse?

At which point of the orbit will the planet have the lowest velocity?

• A to B

• C to D

• F to G

• L to A

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5