Kepler's First Law

Which object would have an eccentricity closest to 0?

• Red

• Green

• Blue

• Yellow

• Pink

Which object would have an eccentricity closest to 1?

• Red

• Green

• Blue

• Yellow

• Pink

Tags

NGSS.HS-ESS1-4

Planets orbit the Sun in a shape called a(n)

• circle
• ellipse
• focus
• perihelion

Tags

NGSS.HS-ESS1-4

Kepler's first law states that the orbits of the planets are oval in shape or 

• ellipses
• perfect circles

Tags

NGSS.HS-ESS1-4

The path a planet travels around the sun is called its 

• orbit
• ellipse
• barycenter
• precession

Tags

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

Tags

NGSS.HS-ESS1-4

A perfect circle has an eccentricity of ______.

• 0
• .99
• 1
• 2

Which diagram shows a planet with the least eccentric orbit?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS1-2

Which orbit is most eccentric? 

• 1
• 3
• 4
• 5

What is eccentricity? 

• a measurement of how elliptical an orbit is. 
• a measurement of the distance between the planet and the sun
• a measurement of how long the planet takes to rotate around the sun
• none of these