Kepler's Laws 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

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

What has an eccentricity of zero?

• #1: A perfect circle

• #2: A slightly elliptical path

• #3: A very elliptical path

• All elliptical paths

What has the greatest eccentricity of its orbital path?

• #1: A perfect circle

• #2: A slightly elliptical path

• #3: A very elliptical path

• All elliptical paths have eccentricities of zero (e = 0)

Tags

NGSS.HS-ESS1-4

The value of eccentricity can range from ________ to ________.

• 0.1 to 0.9

• -1 to 0

• 0 to 100

• 0 to 1

Tags

NGSS.HS-ESS1-4

Where is the planet moving faster

• Position A to B
• Position B to C
• Position H to I
• Position I to J

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NGSS.HS-ESS1-4

What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?

• The area between A, B and the Sun is the largest.
• The area between H, I and the Sun is the largest
• Both areas are equal in size
• There is not enough information to determine the areas

Tags

NGSS.HS-ESS1-4

Kepler's 2nd Law deals with:

• the shape of the planets' orbits
• the speed/area the planet travels 
• the length of time it takes the planet to orbit the sun

Tags

NGSS.HS-ESS1-4

A planet moves __________ when it is farthest from the sun.

• faster
• slower

Tags

NGSS.HS-ESS1-4