Kepler's First Law

Front

What are the two points around which an ellipse is drawn?

Back

Foci

Front

Which orbit has the highest eccentricity?

Back

Orbit 5

Front

What shape do planets orbit the Sun in?

Back

Ellipse

Front

What is the eccentricity of a perfect circle?

Back

0

Front

What does Kepler's first law state about the shape of planetary orbits?

Back

They are ellipses.

Front

Define eccentricity in the context of orbits.

Back

Eccentricity is a measure of how much an orbit deviates from being circular.

Front

What is the eccentricity of an ellipse?

Back

Between 0 and 1.

Front

What is the term for the closest point in an orbit to the Sun?

Back

Perihelion

Front

What is the term for the farthest point in an orbit from the Sun?

Back

Aphelion

Front

How does the shape of an ellipse differ from a circle?

Back

An ellipse is elongated, while a circle is perfectly round.