Review; Kepler's First law of Planetary motion

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

• circle
• ellipse
• focus
• perihelion

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NGSS.HS-ESS1-4

An ellipse is drawn around two points called

• aphelion
• perihelion
• foci
• axis

The place where a planet is closest to the Sun as it orbits the Sun is called the

• perihelion
• aphelion

Tags

NGSS.HS-ESS1-4

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

The place where a planet is farthest away from the Sun in its orbit around the Sun is called the

• aphelion
• perihelion

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NGSS.HS-ESS1-4

1. Which planet has the most circular orbit? ​ (a)  
   

2. Which planet has the least circular orbit? ​ (b)  

• Venus
• Mercury
• earth
• Mars
• Jupiter
• Uranus
• Neptune

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NGSS.HS-ESS1-4

Which diagram shows a planet with the least eccentric orbit?

• 1
• 2
• 3
• 4

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NGSS.HS-ESS1-4

Calculate the eccentricity for the following orbit. 

• 1.6
• 0.8
• 0.6
• 1.2

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NGSS.HS-ESS1-4

What is the eccentricity of this ellipse?

• 3.00

• 4.00

• .25

• 0.33

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NGSS.HS-ESS1-4

As distance between the foci increases the eccentricity

• increases

• decreases

• remains the same

• decreases than increases