Kepler’s Laws

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

• circle
• ellipse
• focus
• perihelion

Where is the planet moving faster

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

What has an eccentricity of zero

• a straight line
• a large ellipse
• a circle
• a small ellipse

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

The "Law of Harmonies" is which of Kepler's Laws?

• 1st
• 2nd
• 3rd
• 4th

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

• faster
• slower

The farther away a planet is from the sun, the _______ it takes it to orbit the sun once. 

• longer
• shorter

The oval shaped path a planet travels around the sun is called its 

• circle
• ellipse
• barycenter
• precession

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

Planets farther away from the sun have a longer orbital period and travel slower because gravity is weaker.

• Kepler's 2nd Law
• Newton's 3rd Law
• Kepler's 3rd Law
• Newton's 3rd Law