Kepler

Planets travel faster when they are closer to the sun.

• Kepler's 1st Law

• Kepler's 2nd Law

• Kepler's 3rd Law

Kepler's 1st Law says this about the orbits of planets

• they are elliptical.

• they are perfect circles.

• they are always perfect polygons (square, pentagon, hexagon, etc.,)

• they are parabolic.

Kepler's 3rd Law states that the farther away a planet is from the sun, the _______ it takes it to orbit the sun once (year).

• longer

• shorter

According to Kepler's 2nd Law when do planets move the fastest?

• Close to the sun

• Far away from the sun

A new planet is discovered orbiting a single star. The planet has one moon. According to Kepler’s first law, what do scientists know about the orbit of the planet around the star?

• The orbit is circular

• The orbit is elliptical

Tags

NGSS.HS-ESS1-4

Which scientist came up up with the three laws of planetary motion?

• Newton

• Kepler

• Einstein

• Hawking

The diagram below shows a moon revolving around a planet in an elliptical orbit. Using your knowledge of Kepler's Law, at which position is the moon traveling slowest?

• location 1

• location 2

• location 3

• location 4

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS3-1

Which Law is it?

This Law states that a planets path around the sun is elliptical.

• Kepler's 1st Law

• Kepler's 2nd Law

• Kepler's 3rd Law

Which Law is it?

This Law states that a planets distance from the sun impacts its time to complete 1 orbital revolution (year).

• Kepler's 1st Law

• Kepler's 2nd Law

• Kepler's 3rd Law

Which Law is it? This Law states that planets move faster closer to the sun and slower farther away from the sun. The planets cover the same area and take the same amount of time.

• Kepler's 1st Law

• Kepler's 2nd Law

• Kepler's 3rd Law