Kepler's First Law

Front

What is the point on an orbit where a planet is closest to the Sun?

Back

Perihelion

Front

What does it mean if an ellipse has an eccentricity closer to 1?

Back

The ellipse is more linear (stretched).

Front

True or False: As the planetary distance from the Sun increases, the eccentricity increases.

Back

False

Front

What type of planets are characterized by having metals at their core?

Back

Terrestrial planets.

Front

What theory explains the formation of the solar system?

Back

Nebular Hypothesis.

Front

What is Kepler's First Law?

Back

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

Front

What is eccentricity in relation to an ellipse?

Back

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

Front

What is the range of eccentricity values for an ellipse?

Back

0 to 1.

Front

What is the point on an orbit where a planet is farthest from the Sun?

Back

Aphelion.

Front

What are the two focal points in an ellipse?

Back

The two fixed points used to define the shape of the ellipse.