Formation of the Solar System and Gravity

Front

What happened first in the formation of the planets?

Back

The Solar Nebula Collapses

Front

Where in the protoplanetary disk did the rocky planets form?

Back

In the hot temperatures of the inner disk

Front

How did the sun form?

Back

It formed when fusion began in the center of the protostellar disk.

Front

What were formed when dust grains stuck together and eventually increased in size until they were kilometers sized objects?

Back

planetesimals

Front

What force caused planets to grow so large?

Back

Gravity

Front

What do we call the path that a body follows as it travels around another body in space?

Back

orbit

Front

What step in the formation of the solar system is this?

Back

Step 1

Front

What formed first?

Back

Sun

Front

When did the solar system form, according to the big bang theory?

Back

4.6 Billion Years

Front

Astronomers think that the solar system formed from an interstellar

Back

clouds