Kepler’s Laws

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

• circle
• ellipse
• focus
• perihelion

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

• longer
• shorter

The path a planet travels around the sun is called its 

• orbit
• ellipse
• barycenter
• precession

The areas swept by an invisible line between the sun an the earth will be

• larger if the earth moves for the same amount of time

• equal if the earth moves for the same amount of time

• smaller if the earth moves for the same amount of time

The farther a planet is from the sun, the

• less time it will take to revolve around the sun

• more time it will take to revolve around the sun

• distance does not play a role

Which scientist penned the law of universal gravitation?

• Newton
• Kepler
• Hailey
• Einstein

Our moon is an example of a _____________ satellite.

• Artificial
• Natural
• Both A and B
• Neither A nor B

Which planet is 3rd from the sun?

• Mercury
• Mars
• Earth
• Venus

Which planet has an orbital period shorter than Earth?

• mercury
• jupiter
• neptune
• saturn