Eccentricity

A perfect circle has an eccentricity of ______.

• 0
• .99
• 1
• 2

A perfect circle has an eccentricity of ______.

• 0
• .99
• 1
• 2

The flattest ellipse before it becomes a line will have an eccentricity of _______.

• 0
• .99
• 1
• 2

Which planet has an orbital eccentricity most like the orbital eccentricity of the Moon?

• Earth
• Saturn
• Mars
• Mercury

The gravitational attraction between the star and the planet will be greatest at position 

• A
• B
• C
• D

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which diagram shows a planet with the least eccentric orbit?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS1-2

What is the maximum eccentricity an ellipse can be?

• 0
• .5
• 1
• 42

Calculate the eccentricity for the following orbit. 

• 1.6
• 0.8
• 0.6
• 1.2

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