Kepler's 2nd Law Review

Front

What is the term for the point in a planet's orbit where it is farthest from the Sun?

Back

Aphelion

Front

What does Kepler's 2nd Law describe?

Back

The speed/area the planet travels in its orbit.

Front

In an elliptical orbit, where does a moon travel slowest?

Back

At the aphelion (farthest point from the planet).

Front

According to Kepler's 2nd Law, how does a planet's speed change as it orbits the Sun?

Back

A planet moves faster when it is closer to the Sun.

Front

When is the Earth moving fastest in its orbit?

Back

In January.

Front

What is perihelion?

Back

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

Front

What shape do planets' orbits take according to Kepler's laws?

Back

Elliptical.

Front

What does it mean for a planet to sweep out equal areas in equal times?

Back

The planet covers equal area in its orbit over equal time intervals.

Front

How does the distance from the Sun affect a planet's orbital speed?

Back

The closer a planet is to the Sun, the faster it moves.

Front

What is the significance of Kepler's 2nd Law in astronomy?

Back

It helps explain the varying speeds of planets in their orbits.