Front

What has an eccentricity of zero?

Back

A circle.

Front

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

Back

Ellipse.

Front

What does Kepler's 2nd Law deal with?

Back

The area the planet travels.

Front

What is the eccentricity formula?

Back

Distance between foci/length of major axis.

Front

Where is the planet moving faster?

Back

Position A to B.

Front

What is Kepler's 1st Law?

Back

Planets move in elliptical orbits with the Sun at one focus.

Front

What is the definition of eccentricity in orbits?

Back

A measure of how much an orbit deviates from being circular.

Front

What is the perihelion?

Back

The point in the orbit of a planet where it is closest to the Sun.

Front

What is the aphelion?

Back

The point in the orbit of a planet where it is farthest from the Sun.

Front

How does the speed of a planet change in its orbit?

Back

A planet moves faster when it is closer to the Sun.