Eccentricity

Front

What is eccentricity?

Back

A measurement of how elliptical an orbit is.

Front

Which diagram in the image shows a planet with the LEAST eccentric orbit?

Back

Diagram A.

Front

Which planet has an orbital eccentricity most like the orbital eccentricity of the Moon?

Back

Saturn.

Front

Round to the nearest tenth: 5.47

Back

5.5

Front

Round to the nearest tenth: 5

Back

5.0

Front

What does an eccentricity of 0 indicate about an orbit?

Back

The orbit is a perfect circle.

Front

What does an eccentricity of 1 indicate about an orbit?

Back

The orbit is parabolic.

Front

How does eccentricity affect the speed of a planet in its orbit?

Back

Planets move faster when they are closer to the sun and slower when they are farther away.

Front

What is the range of eccentricity values for elliptical orbits?

Back

0 < eccentricity < 1.

Front

What is the eccentricity of a circular orbit?

Back

0.