1. On each of following slides you will find a question.
For each question claim an answer to the question and then provide evidence from one or more of the Phet Simulations to support your claim.
Your responses may be presented with written words, pictures, narration, video, etc.

2. You will be graded on the following criteria:
Clarity of your claim
Thoroughness of evidence
Relevance of evidence
Participation with your group

3. Assignment is DUE on Thursday 3/14/19 at midnight.
We will work on them in class today (3/12), tomorrow (3/13) and Thursday (3/14)
You may work in groups of up to 3 people

4. Orbits CERs
Names

5. Question #1: What are the factors that affect the force of gravity between two objects?

6. Question #2: What two factors must be in balance to create a stable orbit?

7. Question #3: How does the distance from a star affect the period of revolution?

8. Question #4: How does speed change as a planet gets closer to and farther from the star on its orbit?

9. Question #5: What is the shape of most orbits?