Kepler's 2nd Law

Front

What shape do planets orbit the Sun in?

Back

Ellipse

Front

What is eccentricity?

Back

A measurement of how elliptical an orbit is.

Front

What does Kepler's 2nd Law deal with?

Back

The speed/area the planet travels.

Front

Calculate the eccentricity for the following orbit: 0.6, 1.2, 1.6, 0.8

Back

0.6

Front

Which ellipse has the highest eccentricity? (Top, Middle, Bottom)

Back

Bottom

Front

Define Kepler's 2nd Law.

Back

A law stating that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.

Front

What is the formula for eccentricity (e)?

Back

e = c/a, where c is the distance from the center to the focus and a is the distance from the center to a vertex.

Front

What does a higher eccentricity indicate about an orbit?

Back

It indicates a more elongated orbit.

Front

What is the range of eccentricity values?

Back

0 (circle) to 1 (parabola).

Front

What is perihelion?

Back

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