Front

What is an ellipse?

Back

A flattened oval shape that may appear circular even if it is not.

Front

According to Kepler's Second Law, when is the Earth moving the fastest?

Back

At perihelion.

Front

Which object does NOT belong in the solar system?

Back

Nebula.

Front

What is the Geocentric Solar System?

Back

A model in which the Earth is at the center of the Sun, stars, moon, and revolving planets.

Front

What is the hottest planet in the solar system?

Back

Venus.

Front

What is the definition of perihelion?

Back

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

Front

What is the definition of aphelion?

Back

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

Front

What is eccentricity in relation to orbits?

Back

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

Front

What are the foci of an ellipse?

Back

Two fixed points located along the major axis of an ellipse, used to define its shape.

Front

What is the major axis of an ellipse?

Back

The longest diameter of an ellipse, passing through both foci.