8.

Part III: The Role of Gravity in Planetary and Solar System Motion

Draw what you observed in the boxes below.

1

2.

Motion of Marble under Container

Motion of Marble When Container Is Lifted

What force does the container represent in this model?

  1. What does the marble represent in this model?

How did the marble move while it was under the container?

5.

Describe what happened to the marble when the force was not present.

6.

How is the motion of the planets in the solar system similar to the motion of the marble

under the container?

7.

How does this model show what would happen to the planets and other bodies of the solar

system if there were no gravity?

Objects too far away from the Sun do not orbit it. Explain why this occurs.