Kepler's Three Laws of Planetary Motion

Kepler's first law is known as 

• The Law of Orbits.
• The Law of Areas.
• The Law of Periods.
• The Law of Gravity.

Tags

NGSS.HS-ESS1-4

Kepler's first law states that the orbits of the planets are oval in shape or 

• ellipses.
• perfect circles.
• squares.
• triangles.

When a planet orbits the Sun, one of the foci of the elliptical orbit is 

• the axis.
• the perihelion.
• the center.
• the Sun.

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

• perihelion.
• aphelion.

Tags

NGSS.MS-PS2-4

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

• aphelion.
• perihelion.

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

• faster
• slower

Tags

NGSS.MS-ESS1-2

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

• longer
• shorter

Tags

NGSS.MS-ESS1-2

What has an eccentricity of zero?

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

Kepler's second law is known as 

• The Law of Orbits.
• The Law of Areas.
• The Law of Periods.
• The Law of Gravity.

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.
• time travel.