Kepler's First Law of Planetary motion

Front

What shape do planets orbit the Sun in?

Back

Ellipse

Front

What is the eccentricity if the distance between the foci is 6 cm and the length of the major axis is 10 cm?

Back

0.600

Front

What is half of the major axis of an ellipse called?

Back

Semimajor axis

Front

What happens to the eccentricity as the distance between the foci increases?

Back

Increases

Front

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

Back

Foci

Front

What is Kepler's First Law of Planetary Motion?

Back

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

Front

What is the definition of eccentricity in relation to an ellipse?

Back

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

Front

If the major axis of an ellipse is 12 cm, what is the length of the semimajor axis?

Back

6 cm

Front

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

Back

Perihelion

Front

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

Back

Aphelion