Nebular Theory & Kepler's Law Review

Front

What happens to a nebula when a physical force disturbs it?

Back

It begins to spin and flatten into a disk.

Front

What is the Nebular Hypothesis?

Back

The scientific explanation for the formation of our solar system.

Front

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

Back

Foci.

Front

What type of planets are primarily made of hydrogen and are icy/gaseous?

Back

Jovian planets.

Front

What is Kepler's First Law of Planetary Motion?

Back

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

Front

What does Kepler's Second Law state about planetary motion?

Back

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

Front

What is the significance of the area between points A, B and the Sun compared to points H, I and the Sun?

Back

Both areas are equal in size.

Front

Define 'aphelion'.

Back

The point in the orbit of a planet where it is farthest from the Sun.

Front

Define 'perihelion'.

Back

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

Front

What is the main difference between Jovian and terrestrial planets?

Back

Jovian planets are gas giants, while terrestrial planets are rocky.